PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER EUROPE N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER CORPORATION 2000 K-ZZA. FEB. 2000 Printed in Japan ORDER NO. CRT2479 BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER GM-X644 X1R/UC,EW Service Manual CONTENTS 1. SAFETY INFORMATION............................................2 2. EXPLODED VIEWS AND PARTS LIST ......................2 3. SCHEMATIC DIAGRAM.............................................6 4. PCB CONNECTION DIAGRAM................................12 5. ELECTRICAL PARTS LIST........................................16 6. ADJUSTMENT.........................................................20 7. GENERAL INFORMATION.......................................21 7.1 DISASSEMBLY ..................................................21 8. OPERATIONS AND SPECIFICATIONS....................22 GM-X544 X1R/UC,ES GM-X644/X1R/UC www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 2 GM-X644,X544 2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKING 1. SAFETY INFORMATION - GM-X644/X1R/UC, GM-X544/X1R/UC CAUTION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely; you should not risk trying to do so and refer the repair to a qualified service technician. WARNING This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 - Proposition 65 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 3 GM-X644,X544 NOTE: - Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List. - Screws adjacent to ∇ mark on the product are used for disassembly. - PACKING SECTION PARTS LIST Part No. Mark No. Description GM-X644/X1R/UC GM-X644/X1R/EW GM-X544/X1R/UC GM-X544/X1R/ES 1 ••••• 2 Screw BYC40P180FZK BYC40P180FZK BYC40P180FZK BYC40P180FZK 3 Polyethylene Bag HEG0011 HEG0011 HEG0011 HEG0011 4 Polyethylene Bag HEG0013 HEG0013 HEG0013 HEG0013 5 Carton HHG0237 HHG0238 HHG0236 HHG0239 6 Contain Box HHL0237 HHL0238 HHL0236 HHL0239 7 Protector HHP0076 HHP0076 HHP0076 HHP0076 8-1 Owner’s Manual HRD0132 HRD0133 HRD0131 HRD0134 8-2 Owner’s Manual Not used Not used Not used HRD0142 * 8-3 PRC HRY0012 Not used HRY0012 Not used * 8-4 Warranty Card Not used HRY1157 Not used Not used * 8-5 Card Not used Not used ARY1048 Not used 9 Cover HNS0101 HNS0101 HNS0101 HNS0101 - Owner's Manual Model Part No. Language GM-X644/X1R/UC HRD0132 English, French GM-X644/X1R/EW HRD0133 English, Spanish, German, French, Italian, Dutch GM-X544/X1R/UC HRD0131 English, French GM-X544/X1R/ES HRD0134 English, Spanish HRD0142 Portuguese(B), Arabic www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 4 GM-X644,X544 2.2 EXTERIOR www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 5 GM-X644,X544 (1) EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BBZ30P060FMC 2 Screw BBZ30P080FMC 3 Screw BSZ30P050FZK 4 Screw(M2.6x6) HBA0012 5 Panel See Contrast table(2) 6 Case See Contrast table(2) 7 Heat Sink See Contrast table(2) 8 Plate HNS0078 9 Plate HNS0080 10 Cover HNS0101 11 Amp Unit See Contrast table(2) 12 Terminal(CN902) CKF1059 13 Fuse(25A) HEK0025 14 Pin Jack(CN852) HKB0002 15 Pin Jack(CN851) HKB0006 16 Terminal(CN853) HKE0006 17 Connector(CN301) HKE0030 18 Clip HNC0054 19 Heat Sink HNR0166 20 Heat Sink HNR0167 21 Screw PPZ30P100SAD 22 Light Pipe Unit HXA0322 23 Screw PPZ30P100FZK 24 Fuse Holder HKE0012 25 Connector(CN601) HKE0020 26 Transistor(Q616) 2SD2395 27 Transistor(Q617) 2SB1566 28 Diode(D610) FML22S 29 Diode(D611) FML22R 30 Thermistor(TH601, 602) CCX1013 (2) CONTRAST TABLE GM-X644/X1R/UC, EW and GM-X544/X1R/UC, ES are constructed the same except for the following: Part No. Mark No. Description GM-X644/X1R/UC GM-X644/X1R/EW GM-X544/X1R/UC GM-X544/X1R/ES 5 Panel HNB0109 HNB0109 HNB0110 HNB0110 6 Case HNB0115 HNB0115 HNB0113 HNB0113 7 Heat Sink HNR0157 HNR0157 HNR0155 HNR0155 11 Amp Unit HWH0117 HWH0126 HWH0125 HWH0127 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com HP/LP FILTER 40-120Hz 12dB/octave POWER SUPPLY ISOLATOR CIRCUIT GAIN=1 RCA OUT L GAIN=1 RCA OUT R GAIN=1 4CH ↑↓ 2CH 6 GM-X644,X544 A 1 2 3 4 B C D 1 2 3 4 A-a A-b A-a A-a A-b A-b A-b A-b A-a A-a Large size SCH diagram Guide page Detailed page A 3. SCHEMATIC DIAGRAM 3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. A-a www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022 ← ← The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors. NOTE : Symbol indicates a capacitor. No differentiation is made between chip capacitors and discrete capacitors. > > AMP GAIN=7-31dB A AMP UNIT /EW, ES OFF/LPF/HPF OFF/LPF/HPF BFC HEK0025 HEK0025 1K(B) 1K(B) 1K(B) 1K(B) 7 GM-X644,X544 5 6 7 8 A B C D 5 6 7 8 A-b A www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 8 GM-X644,X544 A 1 2 3 4 B C D 1 2 3 4 HP/LP FILTER 40-120Hz 12dB/octave ISOLATOR CIRCUIT GAIN=1 RCA OUT L GAIN=1 RCA OUT R GAIN=1 OFF OFF/ 4CH ↑↓ 2CH A-a A-a A-b 1 2 3 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 9 GM-X644,X544 5 6 7 8 A B C D 5 6 7 8 POWER SUPPLY /EW, ES BFC A-a A-a A-b 4 5 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 10 GM-X644,X544 A 1 2 3 4 B C D 1 2 3 4 AMP GAIN=7-31dB A AMP UNIT OFF/LPF/HPF OFF/LPF/HPF 1K(B) 1K(B) A-a A-b A-b 1 2 3 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 11 GM-X644,X544 5 6 7 8 A B C D 5 6 7 8 Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022 ← ← The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors. NOTE : Symbol indicates a capacitor. No differentiation is made between chip capacitors and discrete capacitors. > > BFC HEK0025 HEK0025 1K(B) 1K(B) A-a A-b A-b 4 5 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 12 GM-X644,X544 A 1 2 3 4 B C D 1 2 3 4 A AMP UNIT 4. PCB CONNECTION DIAGRAM 4.1 AMP UNIT NOTE FOR PCB DIAGRAMS 1. The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram. 2. Viewpoint of PCB diagrams Capacitor Connector P.C.Board Chip Part SIDE A SIDE B A 1 1 2 3 1 2 3 1 2 3 1 2 3 3 2 4 6 3 5 7 1 2 4 6 3 5 7 1 3 4 5 6 9 10 11 12 4CH iu 2CH www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 13 GM-X644,X544 5 6 7 8 A B C D 5 6 7 8A 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 2 4 6 3 5 7 1 2 4 6 3 5 7 1 +B GND BREM AR+ AR- AL- AL+ BR+ BR- BL- BL+ BFC SIDE A www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 14 GM-X644,X544 A 1 2 3 4 B C D 1 2 3 4 A A AMP UNIT www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 15 GM-X644,X544 5 6 7 8 A B C D 5 6 7 8A SIDE B www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 16 GM-X644,X544 Q 324 Transistor 2SA992 Q 325 Transistor 2SA992 Q 326 Transistor 2SA992 Q 327 Transistor 2SA992 Q 328 Transistor 2SA992 Q 329 Transistor 2SA970 Q 330 Transistor 2SA970 Q 331 Transistor 2SA970 Q 332 Transistor 2SA970 Q 337 Transistor 2SC2240 Q 338 Transistor 2SC2240 Q 339 Transistor 2SC2240 Q 340 Transistor 2SC2240 Q 341 Transistor 2SC1845 Q 342 Transistor 2SC1845 Q 343 Transistor 2SC1845 Q 344 Transistor 2SC1845 Q 345 Transistor 2SC2240 Q 346 Transistor 2SC2240 Q 347 Transistor 2SC2240 Q 348 Transistor 2SC2240 Q 349 Transistor 2SA970 Q 350 Transistor 2SA970 Q 351 Transistor 2SA970 Q 352 Transistor 2SA970 Q 353 FET 94-4980 Q 354 FET 94-4980 Q 355 FET 94-4980 Q 356 FET 94-4980 Q 357 FET 94-4981 Q 358 FET 94-4981 Q 359 FET 94-4981 Q 360 FET 94-4981 Q 601 Transistor 2SC2458 Q 602 Transistor 2SA1048 Q 603 Transistor 2SB1243 Q 604 Transistor 2SA1048 Q 606 Transistor 2SD1919 Q 607 Transistor 2SD1919 Q 608 Transistor 2SB1277 Q 609 Transistor 2SB1277 Q 611 FET STP50NE08 Q 612 FET STP50NE08 Q 613 FET STP50NE08 Q 614 FET STP50NE08 Q 616 Transistor 2SD2395 Q 617 Transistor 2SB1566 Q 901 Transistor 2SD1768S Q 902 Transistor 2SD1768S Q 903 Transistor 2SD1768S Q 904 Transistor 2SD1768S Q 905 Transistor 2SA1048 Q 906 Transistor 2SC2458 Q 907 Transistor 2SC2458 Q 908 Transistor 2SC2458 5. ELECTRICAL PARTS LIST NOTE: - Parts whose parts numbers are omitted are subject to being not supplied. - The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS.....) CKS....., CCS....., CSZS..... Unit Number : HWH0117(GM-X644/X1R/UC) : HWH0126(GM-X644/X1R/EW) : HWH0125(GM-X544/X1R/UC) : HWH0127(GM-X544/X1R/ES) Unit Name : Amp Unit MISCELLANEOUS IC 121 IC NJM2068L IC 122 IC NJM2068L IC 123 IC NJM2068L IC 124 IC NJM2068L IC 125 IC NJM2068L IC 126 IC NJM2068L IC 127 IC NJM2068L IC 128 IC NJM2068L IC 201 IC NJM2068D IC 202 IC NJM2068D IC 601 IC PA2027A IC 602 IC UPC494C IC 851 IC NJM2068D IC 852 IC NJM2068D IC 853 IC NJM2068D IC 854 IC NJM2068D IC 855 IC NJM2068L Q 201 Transistor 2SC2458 Q 202 Transistor 2SC2458 Q 203 Transistor 2SC2458 Q 204 Transistor 2SC2458 Q 207 Transistor DTA124ES Q 301 Transistor 2SA992 Q 302 Transistor 2SA992 Q 303 Transistor 2SA992 Q 304 Transistor 2SA992 Q 305 Transistor 2SC1845 Q 306 Transistor 2SC1845 Q 307 Transistor 2SC1845 Q 308 Transistor 2SC1845 Q 309 Transistor 2SK389 Q 310 Transistor 2SK389 Q 311 Transistor 2SK389 Q 312 Transistor 2SK389 Q 313 Transistor 2SC1845 Q 314 Transistor 2SC1845 Q 315 Transistor 2SC1845 Q 316 Transistor 2SC1845 Q 317 Transistor 2SC1845 Q 318 Transistor 2SC1845 Q 319 Transistor 2SC1845 Q 320 Transistor 2SC1845 Q 321 Transistor 2SA992 Q 322 Transistor 2SA992 Q 323 Transistor 2SA992 =====Circuit Symbol and No.===Part Name Part No. --- ------ ------------------------------------------ ------------------------- =====Circuit Symbol and No.===Part Name Part No. --- ------ ------------------------------------------ ------------------------- A www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 17 GM-X644,X544 Q 909 Transistor 2SA1048 D 301 Diode HZS6L(C1) D 302 Diode HZS6L(C1) D 303 Diode HZS6L(C1) D 304 Diode HZS6L(C1) D 313 Diode 1SS133 D 314 Diode 1SS133 D 315 Diode 1SS133 D 316 Diode 1SS133 D 317 Diode 1SS133 D 318 Diode 1SS133 D 319 Diode 1SS133 D 320 Diode 1SS133 D 601 Diode RM4Z D 602 Diode HZS7L(B2) D 603 Diode 1SS133 D 606 Diode 1SS133 D 607 Diode 1SS133 D 608 Diode ERA15-02VH D 609 Diode ERA15-02VH D 610 Diode FML22S D 611 Diode FML22R D 612 Diode HZS16L(1) D 613 Diode HZS16L(1) D 901 Diode 1SS133 D 902 Diode 1SS133 D 903 Diode 1SS133 D 904 Diode 1SS133 D 909 Diode 1SS133 D 910 LED SML210LT(LMN) L 601 Choke Coil 50mH CTH1144 L 851 Ferri-Inductor CTF1007 L 852 Ferri-Inductor CTF1007 L 853 Ferri-Inductor CTF1007 L 854 Ferri-Inductor CTF1007 T 601 Transformer HTT0008 TH 601 Thermistor CCX1013 TH 602 Thermistor CCX1013 TH 603 Thermistor CCX1035 S 101 Switch (OFF, LPF, HPF) CSH1029 S 102 Switch (OFF, LPF, HPF) CSH1029 S 601 Switch (BFC) (GM-X644/X1R/EW) HSH-156 (BFC)(GM-X544/X1R/ES) S 851 Slide Switch (4CH†2CH) CSH1042 VR 121 Variable Resistor 20kΩ(E) CCS1266 VR 122 Variable Resistor 20kΩ(E) CCS1266 VR 201 Variable Resistor 10kΩ(A) CCS1265 VR 202 Variable Resistor 10kΩ(A) CCS1265 VR 301 Semi-fixed 1kΩ(B) CCP1200 VR 302 Semi-fixed 1kΩ(B) CCP1200 VR 303 Semi-fixed 1kΩ(B) CCP1200 VR 304 Semi-fixed 1kΩ(B) CCP1200 FU 601 Fuse 25A HEK0025 FU 602 Fuse 25A HEK0025 RESISTORS R 101 RS1/10S103J R 102 RS1/10S103J R 103 RS1/10S103J R 104 RS1/10S103J R 105 RS1/10S103J R 106 RS1/10S103J R 107 RS1/10S103J R 108 RS1/10S103J R 109 RS1/10S103J R 110 RS1/10S103J R 111 RS1/10S103J R 112 RS1/10S103J R 113 RS1/10S472J R 114 RS1/10S472J R 115 RS1/10S472J R 116 RS1/10S472J R 117 RS1/10S103J R 118 RS1/10S103J R 119 RS1/10S103J R 120 RS1/10S103J R 121 RS1/10S562J R 122 RS1/10S562J R 123 RS1/10S562J R 124 RS1/10S562J R 125 RS1/10S822J R 126 RS1/10S822J R 127 RS1/10S822J R 128 RS1/10S822J R 129 RS1/10S103J R 130 RS1/10S103J R 131 RS1/10S103J R 132 RS1/10S103J R 133 RS1/10S822J R 134 RS1/10S822J R 135 RS1/10S822J R 136 RS1/10S822J R 139 RS1/10S222J R 140 RS1/10S222J R 141 RS1/10S222J R 142 RS1/10S222J R 201 RS1/10S103J R 202 RS1/10S103J R 203 RS1/10S103J R 204 RS1/10S103J R 211 RS1/10S101J R 212 RS1/10S101J R 213 RS1/10S101J R 214 RS1/10S101J R 215 RS1/10S222J R 216 RS1/10S222J R 217 RS1/10S222J R 218 RS1/10S222J R 219 RS1/10S153J R 220 RS1/10S153J R 221 RS1/10S153J R 222 RS1/10S153J R 301 RS1/10S301J R 302 RS1/10S301J R 303 RS1/10S301J R 304 RS1/10S301J R 305 RS1/10S183J R 306 RS1/10S183J R 307 RS1/10S183J R 308 RS1/10S183J R 309 RD1/4PU221J R 310 RD1/4PU221J R 311 RD1/4PU221J R 312 RD1/4PU221J R 313 RD1/4PU680J R 314 RD1/4PU680J R 315 RD1/4PU680J R 316 RD1/4PU680J R 317 RD1/4PU680J R 318 RD1/4PU680J R 319 RD1/4PU680J =====Circuit Symbol and No.===Part Name Part No. --- ------ ------------------------------------------ ------------------------- =====Circuit Symbol and No.===Part Name Part No. --- ------ ------------------------------------------ ------------------------- www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 18 GM-X644,X544 R 320 RD1/4PU680J R 321 RD1/4PU332J R 322 RD1/4PU332J R 323 RD1/4PU332J R 324 RD1/4PU332J R 325 RD1/4PU101J R 326 RD1/4PU101J R 327 RD1/4PU101J R 328 RD1/4PU101J R 329 RD1/4PU153J R 330 RD1/4PU153J R 331 RD1/4PU153J R 332 RD1/4PU153J R 333 RD1/4PU181J R 334 RD1/4PU181J R 335 RD1/4PU181J R 336 RD1/4PU181J R 341 RD1/4PU221J R 342 RD1/4PU221J R 343 RD1/4PU221J R 344 RD1/4PU221J R 345 RD1/4PU471J R 346 RD1/4PU471J R 347 RD1/4PU471J R 348 RD1/4PU471J R 353 RD1/4PU183J R 354 RD1/4PU183J R 355 RD1/4PU183J R 356 RD1/4PU183J R 357 RD1/4PU332J R 358 RD1/4PU332J R 359 RD1/4PU332J R 360 RD1/4PU332J R 361 RD1/4PU181J R 362 RD1/4PU181J R 363 RD1/4PU181J R 364 RD1/4PU181J R 369 RD1/4PU163J R 370 RD1/4PU163J R 371 RD1/4PU163J R 372 RD1/4PU163J R 373 RD1/4PU121J R 374 RD1/4PU121J R 375 RD1/4PU121J R 376 RD1/4PU121J R 377 RD1/4PU102J R 378 RD1/4PU102J R 379 RD1/4PU102J R 380 RD1/4PU102J R 381 RD1/4PU622J R 382 RD1/4PU622J R 383 RD1/4PU622J R 384 RD1/4PU622J R 389 RD1/4PU104J R 390 RD1/4PU104J R 391 RD1/4PU104J R 392 RD1/4PU104J R 393 RD1/4PU101J R 394 RD1/4PU101J R 395 RD1/4PU101J R 396 RD1/4PU101J R 397 RD1/4PU102J R 398 RD1/4PU102J R 399 RD1/4PU102J R 400 RD1/4PU102J R 401 RD1/4PU101J R 402 RD1/4PU101J R 403 RD1/4PU101J R 404 RD1/4PU101J R 405 RS1/10S101J R 406 RS1/10S101J R 407 RS1/10S101J R 408 RS1/10S101J R 409 RS1/10S101J R 410 RS1/10S101J R 411 RS1/10S101J R 412 RS1/10S101J R 413 0.1Ω CCN1082 R 414 0.1Ω CCN1082 R 415 0.1Ω CCN1082 R 416 0.1Ω CCN1082 R 417 RS1/2PMF100J R 418 RS1/2PMF100J R 419 RS1/2PMF100J R 420 RS1/2PMF100J R 601 RD1/4PU102J R 602 RD1/4PU473J R 603 RD1/4PU103J R 604 RD1/4PU103J R 605 RD1/4PU222J R 606 RD1/4PU472J R 607 RS1/10S472J R 608 RD1/4PU392J R 609 RD1/4PU392J R 610 RD1/4PU103J R 611 RD1/4PU472J R 612 RD1/4PU101J R 613 RD1/4PU221J R 614 RD1/4PU152J R 616 RS1/10S101J R 617 RS1/10S103J R 618 RS1/10S223J R 619 RS1/10S202J R 620 RS1/10S473J R 621 RS1/10S102J R 622 RS1/10S153J R 623 (GM-X644/X1R/EW, GM-X544/X1R/ES) RD1/4PU105J R 625 RS1/10S332J R 626 RS1/10S332J R 627 RS1/10S472J R 628 RS1/10S472J R 629 RD1/4PU272J R 630 RD1/4PU272J R 631 RD1/4PU272J R 632 RS1/10S472J R 634 RS1/2PMF121J R 635 RD1/4PU472J R 636 RD1/4PU472J R 637 RS1/2PMF121J R 639 RS1/2PMF121J R 640 RS1/2PMF121J R 641 RS1/2PMF100J R 642 RS1/2PMF100J R 643 RS1/2PMF220J R 644 RD1/4PU0R0J R 645 RS1/2PMF100J R 646 RS1/2PMF100J R 647 RD1/4PU472J R 648 RD1/4PU472J R 650 RD1/4PU154J =====Circuit Symbol and No.===Part Name Part No. --- ------ ------------------------------------------ ------------------------- =====Circuit Symbol and No.===Part Name Part No. --- ------ ------------------------------------------ ------------------------- www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 19 GM-X644,X544 =====Circuit Symbol and No.===Part Name Part No. --- ------ ------------------------------------------ ------------------------- =====Circuit Symbol and No.===Part Name Part No. --- ------ ------------------------------------------ ------------------------- R 651 RD1/4PU153J R 652 RD1/4PU682J R 654 RD1/4PU223J R 655 RD1/4PU223J R 656 RD1/4PU223J R 851 RS1/10S471J R 852 RS1/10S471J R 853 RS1/10S471J R 854 RS1/10S471J R 855 RS1/10S223J R 856 RS1/10S223J R 857 RS1/10S223J R 858 RS1/10S223J R 859 RN1/10SE2201D R 860 RN1/10SE2201D R 861 RN1/10SE2201D R 862 RN1/10SE2201D R 863 RN1/10SE2201D R 864 RN1/10SE2201D R 865 RN1/10SE2201D R 866 RN1/10SE2201D R 871 RN1/10SE2201D R 872 RN1/10SE2201D R 873 RN1/10SE2201D R 874 RN1/10SE2201D R 875 RN1/10SE2201D R 876 RN1/10SE2201D R 877 RN1/10SE2201D R 878 RN1/10SE2201D R 879 RS1/10S223J R 880 RS1/10S223J R 883 RS1/10S821J R 884 RS1/10S821J R 885 RS1/10S472J R 886 RS1/10S222J R 887 RS1/10S472J R 889 RS1/10S472J R 890 RS1/10S333J R 891 RS1/10S333J R 892 RS1/10S333J R 893 RS1/10S333J R 901 RD1/4PU563J R 902 RD1/4PU563J R 903 RD1/4PU563J R 904 RD1/4PU563J R 905 RD1/4PU564J R 906 RD1/4PU564J R 907 RD1/4PU564J R 908 RD1/4PU564J R 909 RD1/4PU473J R 910 RD1/4PU473J R 911 RD1/4PU473J R 912 RD1/4PU473J R 917 RD1/4PU104J R 918 RD1/4PU472J R 919 RD1/4PU103J R 920 RD1/4PU222J R 921 RD1/4PU472J R 922 RD1/4PU221J R 923 RD1/4PU222J R 924 RD1/4PU563J R 930 RD1/4PU331J R 931 RD1/4PU331J CAPACITORS C 101 CCSQCH470J50 C 102 CCSQCH470J50 C 103 CCSQCH470J50 C 104 CCSQCH470J50 C 105 CFTLA154J50 C 106 CFTLA154J50 C 107 CFTLA154J50 C 108 CFTLA154J50 C 109 CFTLA154J50 C 110 CFTLA154J50 C 111 CFTLA154J50 C 112 CFTLA154J50 C 201 CCSQCH330J50 C 202 CCSQCH330J50 C 203 CCSQCH330J50 C 204 CCSQCH330J50 C 301 CEJANP100M16 C 302 CEJANP100M16 C 303 CEJANP100M16 C 304 CEJANP100M16 C 305 CMA220J50 C 306 CMA220J50 C 307 CMA220J50 C 308 CMA220J50 C 309 CQMA152J50 C 310 CQMA152J50 C 311 CQMA152J50 C 312 CQMA152J50 C 313 CQMA103J50 C 314 CQMA103J50 C 315 CQMA103J50 C 316 CQMA103J50 C 317 CMA030D2H C 318 CMA030D2H C 319 CMA030D2H C 320 CMA030D2H C 321 CMA180J2H C 322 CMA180J2H C 323 CMA180J2H C 324 CMA180J2H C 325 100µF/16V HCH0002 C 326 100µF/16V HCH0002 C 327 100µF/16V HCH0002 C 328 100µF/16V HCH0002 C 329 CFTLA393J50 C 330 CFTLA393J50 C 331 CFTLA393J50 C 332 CFTLA393J50 C 333 CEAS100M50 C 334 CEAS100M50 C 335 CEAS100M50 C 336 CEAS100M50 C 337 CEAS470M50 C 338 CEAS470M50 C 339 CEAS470M50 C 340 CEAS470M50 C 341 CMA030D2H C 342 CMA030D2H C 343 CMA030D2H C 344 CMA030D2H C 345 CFTLA333J50 C 346 CFTLA333J50 C 347 CFTLA333J50 C 348 CFTLA333J50 C 349 CQMA102J50 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 20 GM-X644,X544 C 350 CQMA102J50 C 351 CQMA102J50 C 352 CQMA102J50 C 353 CMA680J2H C 354 CMA680J2H C 355 CMA680J2H C 356 CMA680J2H C 357 CMA680J2H C 358 CMA680J2H C 359 CMA680J2H C 360 CMA680J2H C 601 CFTLA103J50 C 602 CFTLA224J50 C 603 CFTLA103J50 C 604 CFTLA103J50 C 606 CFTLA103J50 C 607 CEAS100M16 C 608 CEAS100M16 C 609 CEAS470M50 C 611 CEAS220M50 C 612 470µF/16V CCH1183 C 613 CFTLA103J50 C 614 CFTLA103J50 C 615 CEAS470M50 C 616 CEAS221M10 C 617 CQMA102J50 C 618 CEAS2R2M50 C 619 CEAS101M16 C 620 CQMA472J50 C 621 CQMA472J50 C 623 3300µF/16V CCH1130 C 624 3300µF/16V CCH1130 C 625 CQMA102J50 C 626 3300µF/35V CCH1200 C 627 3300µF/35V CCH1200 C 628 3300µF/35V CCH1200 C 629 3300µF/35V CCH1200 C 630 CKSQYB102K50 C 631 CKSQYB102K50 C 633 CEASR10M50 C 634 CEASR10M50 C 635 CEAS470M50 C 636 CEAS470M50 C 637 CEAS101M16 C 638 CEAS101M16 C 639 CKSQYB102K50 C 640 CKSQYB102K50 C 641 CFTLA564J50 C 851 CEAS100M16 C 852 CEAS100M16 C 853 CEAS100M16 C 854 CEAS100M16 C 855 CQMA472J50 C 856 CQMA472J50 C 857 CQMA472J50 C 858 CQMA472J50 C 859 CCSQCH470J50 C 860 CCSQCH470J50 C 861 CCSQCH470J50 C 862 CCSQCH470J50 C 863 CCSQCH271J50 C 864 CCSQCH271J50 C 865 CCSQCH271J50 C 866 CCSQCH271J50 C 875 CKSQYB471K50 C 876 CKSQYB471K50 C 877 CKSQYB471K50 C 878 CKSQYB471K50 C 879 CKSQYB471K50 C 880 CKSQYB471K50 C 881 CEAS4R7M50 C 882 CEAS4R7M50 C 883 CCSQCH101J50 C 890 CEAS100M16 C 891 CEAS100M16 C 892 CEAS100M16 C 893 CEAS100M16 C 894 CQMA122J50 C 895 CQMA122J50 C 896 CQMA122J50 C 897 CQMA122J50 C 901 220µF/10V CCH1036 =====Circuit Symbol and No.===Part Name Part No. --- ------ ------------------------------------------ ------------------------- =====Circuit Symbol and No.===Part Name Part No. --- ------ ------------------------------------------ ------------------------- 6. ADJUSTMENT There is no information to be shown in this chapter. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 21 GM-X644,X544 7. GENERAL INFORMATION 7.1 DISASSEMBLY Case Fig.1 - Removing the Case and the Plate (Fig.1) Remove the six screws. Remove the screw. Remove the three screws. Remove the six screws and then remove the Case. Remove the screw and then remove the Plate. Fig.2 Plate - Removing the Amp Unit (Fig.2) Remove the twelve screws. Remove the two screws. Remove the five screws and then remove the Amp Unit. Amp Unit www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 22 GM-X644,X544 8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATIONS www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 23 GM-X644,X544 Gain Control Adjusting the gain controls A and B will help match the output of the car stereo to the Pioneer amplifier. Normally, set the gain controls to the “NORMAL” position. If the output is low, even when the volume of the car stereo is turned up, turn these controls clockwise. If there is distortion when the volume of the car stereo is turned up, turn these controls counter-clockwise. • If you only use one input plug, set the gain controls for speaker outputs A and B to the same position. • When using with an RCA equipped car stereo (standard output of 500 mV), set to the NORMAL position. When using with an RCA equipped Pioneer car stereo with max. output of 4 V or more, adjust level to match the car stereo output level. • If you hear too much noise when using the speaker input terminals, turn the gain control counter-clockwise. Power Indicator The power indicator lights when the power is switched on. Input Select Switch For two-channel input, slide this switch to the left. For four-channel input, slide this switch to the right. Cut Off Frequency Control If the LPF/HPF select switch is set to LPF or HPF, you can select a cut off frequency from 40 to 120 Hz. LPF (Low-Pass Filter)/HPF (High-Pass Filter) Select Switch Set the LPF/HPF select switch as follows according to the type of speaker that is connected to the speaker output connector and the car stereo system: LPF/HPF Select Audio frequency range Speaker Remarks Switch to be output Type LPF (left) — 40 to 120 Hz Subwoofer Connect a subwoofer. OFF (center) Full range Full range HPF (right) 40 to 120 Hz — Full range Use if you want to cut the very low frequency range because it is not necessary for the speakers you are using. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 24 GM-X644,X544 Connection Diagram Fuse (30 A) Grommet RCA input Special red battery wire [RD-223] (sold separately). After making all other connections at the amplifier, connect the battery wire terminal of the amplifier to the positive (+) terminal of the battery. Ground wire (black) [RD-223] (sold separately). Connect to metal body or chassis. Amplifier with RCA input jacks Fuse (25 A) × 2 Car stereo with RCA output jacks External Output If only one input plug is used, do not connect anything to RCA input jack B. Connecting wires with RCA pin plugs (sold separately). RCA input jack B RCA output jack Speaker terminal System remote control wire (sold separately) Connect the male terminal of this wire to the system remote control terminal of the car stereo (SYSTEM REMOTE CONTROL). The female terminal can be connected to the auto-antenna relay control terminal. If the car stereo does not have a system remote control terminal, connect the male terminal to the power terminal through the ignition switch. Fuse (30 A) Front side Connecting wires with RCA pin plugs (sold separately). RCA input jack A Back side Input Select Switch For two-channel input, slide this switch to the left. For four-channel input, slide this switch to the right. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 8.2 SPECIFICATIONS - GM-X644/X1R/UC 25 GM-X644,X544 Power source .............................................................................................................. 14.4 V DC (10.8 — 15.1 V allowable) Grounding system ............................................................................................................................................ Negative type Current consumption ........................................................................................................ 32.2 A (at continuous power, 4 Ω) Average current drawn* ........................................................................................................ 10.9 A (4 Ω for four channels) 15.9 A (4 Ω for two channels) Fuse ............................................................................................................................................................................ 25 A × 2 Dimensions .......................................................................................................................... 270 (W) × 60 (H) × 250 (D) mm [10-5/8 (W) × 2-3/8 (H) × 9-7/8 (D) in] Weight .......................................................................................................... 4.1 kg (9.0 lbs) (Leads for wiring not included) Maximum power output .................................................................................................................... 100 W × 4 / 240 W × 2 Continuous power output ............................................................ 50 W × 4 (at 14.4 V, 4 Ω, 20 — 20,000 Hz, 0.04% THD) 120 W × 2 (at 14.4 V, 4 Ω, 20 — 20,000 Hz, 0.4% THD) 60 W × 4 (at 14.4 V, 2 Ω, 20 — 20,000 Hz, 0.4% THD) Load impedance .............................................................................................................................. 4 Ω (1 — 8 Ω allowable) (Bridge connection: 2 — 8 Ω allowable) Frequency response ............................................................................................................ 10 — 50,000 Hz (+0 dB, –1 dB) Signal-to-noise ratio ...................................................................................................................... 105 dB (IHF–A network) Distortion ............................................................................................................................................ 0.005% (10 W, 1 kHz) Separation ........................................................................................................................................................ 65 dB (1 kHz) Low pass filter .................................................................................................................... Cut off frequency: 40 — 120 Hz Cut off slope: –12 dB/oct High pass filter .................................................................................................................... Cut off frequency: 40 — 120 Hz Cut off slope: –12 dB/oct Maximum input level/impedance .................................................................................... RCA: 6.5 V/22 kΩ (0.4 — 6.5 V) Speaker: 26 V/40 kΩ (1.6 — 26 V) Note: • Specifications and the design are subject to possible modification without notice due to improvements. *Average current drawn • The average current drawn is nearly the maximum current drawn by this unit when an audio signal is input. Use this value when working out total current drawn by multiple power amplifiers. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com - GM-X644/X1R/EW 26 GM-X644,X544 Power source .......................................................................................................... 14.4 V DC (10.8 — 15.1 V allowable) Grounding system .......................................................................................................................................... Negative type Current consumption .................................................................................................... 32.2 A (at continuous power, 4 Ω) Average current drawn* ...................................................................................................... 10.9 A (4 Ω for four channels) 15.9 A (4 Ω for two channels) Fuse ........................................................................................................................................................................ 25 A × 2 Dimensions ...................................................................................................................... 270 (W) × 60 (H) × 250 (D) mm Weight .................................................................................................................... 4.1 kg (Leads for wiring not included) Maximum power output .................................................................................................................. 100 W × 4 / 240 W × 2 Continuous power output ........................................................................ 80 W × 4 / 210 W × 2 (DIN45324, +B=14.4 V) Load impedance .......................................................................................................................... 4 Ω (1 — 8 Ω allowable) (Bridge connection: 2 — 8 Ω allowable) Frequency response .......................................................................................................... 10 — 50,000 Hz (+0 dB, –1 dB) Signal-to-noise ratio .................................................................................................................... 105 dB (IEC-A network) Distortion .......................................................................................................................................... 0.005% (10 W, 1 kHz) Separation ...................................................................................................................................................... 65 dB (1 kHz) Low pass filter .................................................................................................................. Cut off frequency: 40 — 120 Hz Cut off slope: –12 dB/oct High pass filter ................................................................................................................ Cut off frequency: 40 — 120 Hz Cut off slope: –12 dB/oct Maximum input level/impedance .................................................................................. RCA: 6.5 V/22 kΩ (0.4 — 6.5 V) Speaker: 26 V/40 kΩ (1.6 — 26 V) Note: • Specifications and the design are subject to possible modification without notice due to improvements. *Average current drawn • The average current drawn is nearly the maximum current drawn by this unit when an audio signal is input. Use this value when working out total current drawn by multiple power amplifiers. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com - GM-X544/X1R/UC 27 GM-X644,X544 Power source .............................................................................................................. 14.4 V DC (10.8 — 15.1 V allowable) Grounding system ............................................................................................................................................ Negative type Current consumption ........................................................................................................ 32.2 A (at continuous power, 4 Ω) Average current drawn* ........................................................................................................ 10.9 A (4 Ω for four channels) 15.9 A (4 Ω for two channels) Fuse ............................................................................................................................................................................ 25 A × 2 Dimensions .......................................................................................................................... 270 (W) × 60 (H) × 250 (D) mm [10-5/8 (W) × 2-3/8 (H) × 9-7/8 (D) in] Weight .......................................................................................................... 4.1 kg (9.0 lbs) (Leads for wiring not included) Maximum power output .................................................................................................................... 100 W × 4 / 240 W × 2 Continuous power output ............................................................ 50 W × 4 (at 14.4 V, 4 Ω, 20 — 20,000 Hz, 0.04% THD) 120 W × 2 (at 14.4 V, 4 Ω, 20 — 20,000 Hz, 0.4% THD) 60 W × 4 (at 14.4 V, 2 Ω, 20 — 20,000 Hz, 0.4% THD) Load impedance .............................................................................................................................. 4 Ω (1 — 8 Ω allowable) (Bridge connection: 2 — 8 Ω allowable) Frequency response ............................................................................................................ 10 — 50,000 Hz (+0 dB, –1 dB) Signal-to-noise ratio ...................................................................................................................... 105 dB (IHF–A network) Distortion ............................................................................................................................................ 0.005% (10 W, 1 kHz) Separation ........................................................................................................................................................ 65 dB (1 kHz) Low pass filter .................................................................................................................... Cut off frequency: 40 — 120 Hz Cut off slope: –12 dB/oct High pass filter .................................................................................................................... Cut off frequency: 40 — 120 Hz Cut off slope: –12 dB/oct Maximum input level/impedance .................................................................................... RCA: 6.5 V/22 kΩ (0.4 — 6.5 V) Speaker: 26 V/40 kΩ (1.6 — 26 V) Note: • Specifications and the design are subject to possible modification without notice due to improvements. *Average current drawn • The average current drawn is nearly the maximum current drawn by this unit when an audio signal is input. Use this value when working out total current drawn by multiple power amplifiers. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com - GM-X544/X1R/ES GM-X644,X544 Power source .............................................................................................................. 14.4 V DC (10.8 — 15.1 V allowable) Grounding system ............................................................................................................................................ Negative type Current consumption ........................................................................................................ 32.2 A (at continuous power, 4 Ω) Average current drawn* ........................................................................................................ 10.9 A (4 Ω for four channels) 15.9 A (4 Ω for two channels) Fuse ............................................................................................................................................................................ 25 A × 2 Dimensions .......................................................................................................................... 270 (W) × 60 (H) × 250 (D) mm Weight ........................................................................................................................ 4.1 kg (Leads for wiring not included) Maximum power output .................................................................................................................... 100 W × 4 / 240 W × 2 Continuous power output ............................................................ 50 W × 4 (at 14.4 V, 4 Ω, 20 — 20,000 Hz, 0.04% THD) 120 W × 2 (at 14.4 V, 4 Ω, 20 — 20,000 Hz, 0.4% THD) 60 W × 4 (at 14.4 V, 2 Ω, 20 — 20,000 Hz, 0.4% THD) Load impedance .............................................................................................................................. 4 Ω (1 — 8 Ω allowable) (Bridge connection: 2 — 8 Ω allowable) Frequency response ............................................................................................................ 10 — 50,000 Hz (+0 dB, –1 dB) Signal-to-noise ratio ........................................................................................................................ 100 dB (IEC-A network) Distortion ............................................................................................................................................ 0.005% (10 W, 1 kHz) Separation ........................................................................................................................................................ 60 dB (1 kHz) Low pass filter .................................................................................................................... Cut off frequency: 40 — 120 Hz Cut off slope: –12 dB/oct High pass filter .................................................................................................................... Cut off frequency: 40 — 120 Hz Cut off slope: –12 dB/oct Maximum input level/impedance .................................................................................... RCA: 6.5 V/22 kΩ (0.4 — 6.5 V) Speaker: 26 V/40 kΩ (1.6 — 26 V) Note: • Specifications and the design are subject to possible modification without notice due to improvements. *Average current drawn • The average current drawn is nearly the maximum current drawn by this unit when an audio signal is input. Use this value when working out total current drawn by multiple power amplifiers. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com