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Kicker 600W + Boston Acoustic Bass Package

Kicker C124 Subwoofers + Boston Acoustic GT-275 Amplifier + Belva 4 Gauge Amp Kit + Sealed Subwoofer Enclosure

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Kicker 600W + Boston Acoustic Bass Package

Kicker C124 Subwoofers + Boston Acoustic GT-275 Amplifier + Belva 4 Gauge Amp Kit + Sealed Subwoofer Enclosure


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Kicker Comp C124 (10C124)

150W 12" Comp Series Single 4 ohm Subwoofer
Quantity: 2

Kicker Authorized Dealer

Subwoofer Features:

  • 12" Competition (Comp) Series Subwoofer
  • Power Handling:
    • Peak: 300 watts
    • RMS: 150 watts
  • Recommended power range: 50 - 200 watts RMS
  • Impedance: Single 4 ohm
  • Injection molded SoloKon cone
  • Optimized Polyfoam Ribbed Surround
  • Extremely rigid cone, along with 360 degree back bracing eliminates distortion
  • Double stitched surround for enhanced durability
  • Tinsel leads woven into the spider with Kicker's Spiralead technology
  • Single high-temperature voice coil
  • 45oz. Magnet structure
  • Frequency response: 27-500 Hz
  • Sensitivity: 88.3 dB
  • Mounting depth: 5-7/8"
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Tips for Installing the 10C124 Subwoofer

Boston Acoustics GT-275

300W RMS GT Reference Series 2-Channel Amplifier
Quantity: 1

  • GT Reference Series 2-Channel Reference Amplifier
  • RMS Power Rating(CEA-2006-A):
    • 4 ohms: 75 watts x 2 chan.
    • 2 ohms: 120 watts x 2 chan.
    • Bridged, 4 ohms: 225 watts x 1 chan.
  • RMS Power Rating(12V):
    • 4 ohms: 55 watts x 2 chan.
    • Bridged, 2 ohms: 230 watts x 1 chan.
  • Red LED power badge and orange protect indicator
  • 2/1 channel operation
  • Adjustable mounting feet (mounting feet move along rails to allow the easiest installation)
  • Fully computer-controlled diagnostics system (continuously monitors amplifier in case of thermal overload, short circuits, or over voltage)
  • Q-Tune™ technology combines sophisticated crossover adjustments with Q-Control settings to seamlessly transition rear bass to the front sound stage
  • Uses a 30 amp ANL fuse
  • Heavy duty fan cooled aluminum alloy heatsink
  • Gold-plated RCA level inputs
  • Gold-plated screw terminals
  • Variable high-pass filter (20-350 Hz, 12 dB/octave)
  • Variable low-pass filter (50-350 Hz, 12 or 24 dB/octave)
  • Signal Voltage Input (200mV-8V)
  • Frequency response: 10-95,000 Hz
  • Dimensions: 8-3/4"L x 9"W x 2-3/8"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 1-year Manufacturer's warranty

Belva BAK42

Complete 4 Gauge Amplifier Wiring Kit with 2-Channel RCA Interconnects (CCA Wiring)
Quantity: 1

General Features:

  • Complete 4 Gauge 2-Channel Amplifier Installation Kit
  • Designed specifically for car audio systems up to 1000 watts RMS
  • Premium Powerflex power and ground wire provides optimal power transfer
  • Made from Copper-Clad Aluminum for a pure uninterrupted transfer of power and signal
    • Belva CCA wire is made from 30% copper while other CCA wire is just 10% copper
  • Helical Twist Construction Audio Interconnect RCA cables minimize noise and interference
  • In-line Mini-ANL Fuse holder with a 80 amp Mini-ANL fuse offers ideal protection for high powered systems
  • Also available in Black, Blue and as a 4-Channel Kit
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Kit includes:

  1. 17 ft. (5.2 meters) Red 4 gauge power wire
  2. 3 ft. (.91 meters) Black 4 gauge ground wire
  3. 17 ft. (5.2 meters) Gray 18 gauge remote lead wire
  4. 17 ft. (5.2 meters) Helical Twist 2-channel RCA interconnect cable
  5. 20 ft. (6.1 meters) 16 Gauge Speaker cable
  6. One In-line Mini-ANL Fuse Holder with a 80 amp Mini-ANL fuse
  7. One Black rubber firewall grommet
  8. One 4 Gauge red chrome plated ring terminals
  9. One 4 Gauge black chrome plated ring terminal
  10. Three 18 Gauge red Spade terminal
  11. Two 18 Gauge black Spade terminal
  12. One 18 Gauge red butt connector
  13. Ten 4" Black zip ties

Dual 12" 3/4 MDF Sealed Subwoofer Enclosure (Belva MDFD12)

Dual 12-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/Polyfil (2.46 cu ft Airspace - 12SQB)
Quantity: 1

General Features:

  • Dual Sealed 12" Enclosure
  • Internal box volume: 2.46 cubic ft. total air space - 1.23 cubic ft. per chamber.
  • High Quality 3/4" MDF Construction
  • Durable black carpeting
  • Pre-lined with Poly-Fil
  • Seams are fully caulked for better efficiency
  • 2 Separate chambers allowing each subwoofer its own air space
  • Gold post terminals for clean and easy wiring access
  • Box Dimensions: 28-1/2"L x 14-1/4"D x 14-1/4"H
  • 30 Day return policy


Second Depth
The second depth is used only when the box is slanted or angled. This value is the top measurement and it is measured in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
The height of the item, measured from top to bottom, in inches.
The width of the item from left to right (side-to-side) measured in inches.
Color of handle.

Warranty and Return Policy

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

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Product Summary


Model Number

2-10C124_GT275_Bass Package



Internal SKU


Internal Product ID


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: Kicker 600W + Boston Acoustic Bass Package