JBL GTO 4000 Technical Manual
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JBL GTO 4000 Technical Manual

4 channel
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GTO 4000
4 CHANNEL

POWER AMPLIFIER

TECHNICAL MANUAL
GTO 4000
4/3/2
Channel
Power
Amplifier
JBL CONSUMER PRODUCTS
250 CROSSWAYS PARK DRIVE, WOODBURY, NY 11797
8500 BALBOA BOULEVARD, NORTHRIDGE, CA91329
WWW.JBL.COM

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Questions and answers

Ville
May 14, 2025

Is this jbl gto 4000 amplifier only for car door speakers or can you but subwoofer on it?

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1 comments:
Mr. Anderson
May 21, 2025

Yes, the JBL GTO 4000 amplifier can be used for subwoofers as well as car door speakers. It is a 4/3/2 channel power amplifier, which allows flexible configurations, including powering subwoofers and full-range speakers like door speakers.

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Summary of Contents for JBL GTO 4000

  • Page 1: Power Amplifier

    GTO 4000 4 CHANNEL POWER AMPLIFIER TECHNICAL MANUAL GTO 4000 4/3/2 Channel Power Amplifier JBL CONSUMER PRODUCTS 250 CROSSWAYS PARK DRIVE, WOODBURY, NY 11797 8500 BALBOA BOULEVARD, NORTHRIDGE, CA91329 WWW.JBL.COM...

  • Page 2: Table Of Contents

    4 Channel Power Amplifier Gto 4000 Controls and connections Specifications ............1 Parts Lists............ Features ..............2 Block Diagrams..........Test Conditions and Notes .........2 Packaging Exploded View........11 Controls and Connections .........3 Integrated Circuit Diagrams........12 Transistor Diagrams........13~14 Typical System Configuration (Wiring) ......4 Schematic Diagrams........15~18 Printed Circuit Boards(Top View)......5~6...

  • Page 3: Features

    4 Channel Power Amplifier Gto 4000 Features RCA-jacks, Speaker-and power terminals gold-plated 2 ohm stability(stereo mode) Bridging capability(min.4 ohm) Tri-mode operation(min.4 ohm) Protection circuitry thermal-and electrical overload.short-circuit.DC-offset HPF variable high pass filter(HPF)30-320Hz.12dB/oct. LPF variable low pass filter(LPF)30-320Hz.12dB/oct. +6dB(at 45HZ) Bass boost (only REAR channel) Test Conditions and Notes All tests to be done, unless otherwise specified, from 30Hz to 320Hz at 14.4V DC into 2 ohm loads and adjus...

  • Page 4: Controls And Connections

    4 Channel Power Amplifier Gto 4000 Controls and Connections REAR FRONT INPUT INPUT X-OVER X-OVER GAIN GAIN 30Hz 320Hz 30Hz 320Hz POWER BASS FUSE +12V REAR FRONT Controls and Connections 1. Low INPUT (RCA JACK TYPE) 5.+6dB(at45Hz)Bass boost - Connection to line of level output from the 6.Power Connector-Connection +12V for,...

  • Page 5: Typical System Configuration (Wiring)

    4 Channel Power Amplifier Gto 4000 Typical System Configuration Cassette/CD Tuner (Head Unit) CD Player or Changer Antenna Input Power Antenna Cassette/Receiver Power Supply Wires Power Line Antenna Amplifier Level Relay Power Input Connection GTO 4000 4/3/2 Channel Power Amplifier...

  • Page 6: Printed Circuit Boards(Top View)

    4 Channel Power Amplifier Gto 4000 Printed Circuit Board (Top View) FH01 TM006-00 TER02 TER01 FRONT WF-9604 FRONT L/CH R/CH JST2208 BAR25 REAR BJ01 REAR BAR15 680/2W 680/2W BJ02 R462 R362 680/2W 680/2W 2.2K 104P R361 2200/25"RX" R162 R262 4.7/0.5W 4.7KF...
  • Page 7 4 Channel Power Amplifier Gto 4000 Printed Circuit Board (Top View) LEDMETER PAS240-01 R003 R001 R101 0.47/50V 0.47/50V C001 C101 NHT224GDx12 LEDMETER PAS240-01 R003 R001 R101 0.47/50V 0.47/50V C001 C101 WF01 NHT224GDx12...
  • Page 8 4 Channel Power Amplifier Gto 4000 Gto4000 Parts List Q'TY REF. NO PART NO. DESCRIPTION REF. NO DESCRIPTION Q'TY PART NO. Main PCB, Preamp, Crossover, Power Supply and Power R150,250,350,450 RES-00-00615 CARBON FILE 1/5WJ 120 OHM Amplifier R106,206,306,406 RES-00-00712 CARBON FILE 1/5WJ 470 OHM...
  • Page 9 4 Channel Power Amplifier Gto 4000 Gto4000 Parts List Q'TY REF. NO PART NO. DESCRIPTION REF. NO DESCRIPTION Q'TY PART NO. ELC-00-00203 ELECTROLYTIC"SMS" 10uF /25V J20,36,39,41,50 JUP-00-00046 "0"OHM JUMPER 12.5m/m C131,141,231,241 ELC-00-00197 ELECTROLYTIC"SMS" 22uF /16V J105,106,107,108 C331,341,431,441 J136,137,500,502 ELC-00-00198 ELECTROLYTIC"SMS" 47uF /16V...

  • Page 10: Parts Lists

    4 Channel Power Amplifier Gto 4000 Gto4000 Parts List Q'TY REF. NO PART NO. DESCRIPTION REF. NO DESCRIPTION Q'TY PART NO. MECHANICAL MAIN HEAT SINK MAHSHC12300 AL/EXTRUDING L=326.0mm FRONT PANEL MAFPHC73140 EGI 1.2t EGI 1.2t REAR PANEL MARPHC73171 LED GUIDE...

  • Page 11: Block Diagrams

    4 Channel Power Amplifier Gto 4000 Block Diagram...

  • Page 12: Packaging Exploded View

    4 Channel Power Amplifier Gto 4000 Packaging Exploded View *PACKING PART LIST* *ACCESSORY PART LIST* PART NAME PART NO DESCRIPTION Q'TY MODEL PART NAME PART NO DESCRIPTION MODEL Q'TY OPEN LOG(A) POLY BAG(A) MA- PB- 01- 6916- 0 MO- OL- 01- 0001- 0 VINYL, 400.0x750.0x0.1t...

  • Page 13: Integrated Circuit Diagrams

    4 Channel Power Amplifier Gto 4000 Integrated Circuit Diagrams U01 (TL494CN) P.W.M IC DEAD TIME CONTROL U101,102,103,104,301,302 U303,304,305,306 (NJM2068D) -DUAL OP AMP...

  • Page 14: Transistor Diagrams

    4 Channel Power Amplifier Gto 4000 Transistor Diagrams * KTC3198GR * KTA1266GR * Q02,131,132,143,181,231, Q11,12,23,33,133,141 Q232,243,281,331,332,343 Q142,233,241,242,333 Q431,432,443 Q341,342,433,441,442 * KTC1027Y * Q134,234,334,434 *FQP50N06 Q43,44,53,54 * KTA1023Y * Q01,144,244,344,444...
  • Page 15 4 Channel Power Amplifier Gto 4000 Transistor Diagrams Transistor Diagrams * KTC3198BL * KTA1268GR * * KTD718 * *KTB688 * Q135,235,335,435 Q145,245,345,445 * KTC3200GR * Q151,251,351,451 Q140,240,340,440 * YG225D2 * D41,42...

  • Page 16: Schematic Diagrams

    Gto4000 A1023Y FH01 CL-300+ 20Ax2 10/0.5W 1N5404 104M C800 4.7K N4004 10/16V 4.7K 100/25V"SXE" C3198GR 4.7K 10.5KF PR1504 VCC2 47/50V PR1504 4.7KF 104P FQP50N06 PR1504 47/50V VEE2 PR1504 YG225D2 CL-500 FQP50N06 473P 47/16V VCC1 1N4148 3300/35V"SRF" 470/35V 100/2W 104P 2200/25"RX" 222(M) A1266GR TL494CN...
  • Page 17 Gto4000 +15V R191 VCC2 220/2W C300 C200 VCC1 C191 D191 R131 473P 473P 220/16V 1N4744(15V) R135 R136 C131 R132 Q133 22/16V A1266GR -15V 5.6K R112 Q131 Q134 Q132 C132 C3198GR C1027Y C3198GR 100P Q135 PROT C111 D718 Q151 R151 R152 C3200GR 1.5K R111...
  • Page 18 Gto4000 +15V C500 C400 VCC1 473P 473P R331 R335 R336 C331 R332 Q333 22/16V A1266GR 5.6K R312 Q331 Q334 Q332 C332 C3198GR C1027Y C3198GR 100P PROT Q335 C311 D718 Q351 C3200GR RCA02 R311 C313 C315 R333 R334 R337 R351 R352 VR301-B DJB-562 823M...
  • Page 19 Gto4000 POWER Amplifier (Sheet 4) R103 R003 L-IN C102 R102 KIA6966S R-IN C002 R002 KIA6966S 4.7/50V 200K 4.7/50V 200K R101 C101 R001 C001 0.47/50V 0.47/50V...

  • Page 20: Amplifier Exploded View

    Gto4000 4 Channel Power Amplifier Gto4000 Mechanical Exploded View PART NAME DESCRUDING MFR PARTS Q'TY MAIN HEAT SINK MA-HS-HC-1230-0 AL/EXTRUDEING,L=326.0m/m FRONT PANEL MA-FP-HC-7313-0 EGI 1.2t REAR PANEL MA-RP-HC-7316-1 EGI 1.2t LED GUIDE MA-LG-01-7319-3 HEATPROOF ABS(GRAY) TOP COVER MA-TC-04-7320-2 ACRYLIC,3.0t(ORANGE) TOP PLATE MA-NP-HC-7322-0 PC, 1.0t(CLEAR) TR BRACKET (A)

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