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JBL 4-Channel Full Range System with 6"x8" Speakers, Amplifier and Wiring Kit

GTO-804EZ 4-Channel Class AB Amplifier + GTO8629 6" x 8" 2-Way Coaxial System + Amp Wiring Kit

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JBL 4-Channel Full Range System with 6"x8" Speakers, Amplifier and Wiring Kit

GTO-804EZ 4-Channel Class AB Amplifier + GTO8629 6" x 8" 2-Way Coaxial System + Amp Wiring Kit


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JBL Audio Store

The Sound of quality

Sonic Electronix, one of the leaders in car audio, recently visited Harman, the premium global audio and infotainment group, at their research and development locations in Northridge, California and Detroit, Michigan. The purpose of these visits was to utilize and combine the powerful brand of Harman and the industry leading knowledge behind Sonic Electronix to begin working together on developing future car audio projects.


940W 4-Channel GTO Series Class A/B Car Amplifier
Quantity: 1

General Features:

  • 4-Channel GTO Series Class AB Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 80 watts x 4 chan.
    • 2 ohms: 100 watts x 4 chan.
    • Bridged; 4 ohms: 200 watts x 2 chan.
  • Max power output: 235 watts x 4 chan.
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (0 to +12 dB bass boost at 50 Hz)
  • Soft start turn-on
  • Gain LED indicators for proper gain adjustment
  • 4/3/2 channel operation
  • Heavy duty aluminum alloy heat-sink
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Input sensitivity:
    • Low level: 125mV-5V
    • High level: 250mV-10V
  • Variable low-pass filter (40-220 Hz, 24 dB/octave)
  • Variable high-pass filter (40-220 Hz, 24 dB/octave)
  • CEA-2006 compliant amplifier
  • Frequency response: 20-23000 Hz
  • Dimensions: 9-11/16"W x 11-15/16"L x 2-9/16"H
  • Authorized Internet Dealer
  • 2-year Manufacturer's Warranty


6" x 8" 2-Way GTO Series Coaxial Car Speakers
Quantity: 2



General Features:

  • 6" x 8" GTO Series 2-Way Car Speakers
  • Power Handling:
    • Peak: 720 watts per se / 180 watts each
    • RMS: 240 watts per set / 60 watts each
    • Recommended Power: 5 - 125 watts RMS each
  • Carbon-injected cone material
  • Patented Plus One woofer-cone technology increased output with no extra power
  • Three-ohm voice coils allow compensation for added resistance by thin factory speaker wiring
  • Butyl Rubber speaker surround
  • Edge-driven, Fabric Soft Dome tweeter
  • Adjustable 0 or +3dB tweeter level attenuation
  • High-temperature voice coil
  • Vented magnet motor structure cools the voice coil
  • Fiberglass-reinforced Plastic (FRP) basket
  • Enclosed magnet boot cover
  • 3 ohms impedance
  • Frequency response: 49-21,000 Hz
  • Top-mount depth: 2-3/16"
  • Sensitivity: 93dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

TruConnex TC4KIT-4B by Metra

4 Gauge Full Spec CCA Amplifier Wiring Kit for Systems up to 650 Watts
Quantity: 1

General Features:

  • 4 gauge Power Amplifier Installation Kit
  • Designed specifically for car audio systems up to 650 watts
  • Premium power and ground wire provides optimal power transfer
  • Terminals are Nickel-plated for excellent signal transfer
  • ANL Fuse holder offers ideal protection
  • True-to-Gauge cables/wires meet or exceed the industry standard of copper required for the gauge size
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Package Includes:

  1. 17 ft. of 4 AWG Red power cable
  2. 3 ft. of 4 AWG Gray ground cable
  3. 17 ft. of Blue remote turn-on wire
  4. In-line mini ANL fuseholder
  5. 60 Amp ANL fuse
  6. Ring Terminals
  7. Ground Terminals
  8. Vinyl Cable Ties
  9. Screws
  10. Spade Terminals
  11. Grommets

T-Spec V8RCA-174

17 ft. (5.18m) V8 Series 4-Channel Dual-Twist RCA Audio Cable
Quantity: 1

General Features:

  • 17 Ft. (5.18m) V8 Series 2-Channel Dual Twist RCA Interconnect Cable
  • Dual twist design for increased noise rejection
  • Ultra-flexible PVC blended jacket
  • Patented high tolerance compact machined metal end
  • Dual split tip for maximum contact area
  • Packaged in High-End Retail Box
  • Length: 17 ft. (5.18m)
  • Color: Matte Gray
  • Also found as: TSpecV8RCA174
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: JBL 4-Channel Full Range System with 6"x8" Speakers, Amplifier and Wiring Kit