Hero image 0 of 2002-2013 Chevy Avalanche Underseat Harmony R124 Dual 12" Sub Box & CXA400.1 Amp, 0 of 2

2002-2013 Chevy Avalanche Underseat Harmony R124 Dual 12" Sub Box & CXA400.1 Amp

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Key item features

This Package Includes the Following Items: 2002-2013 Chevy Avalanche Car Audio Custom Dual 12" Subwoofer Enclosure Sub Box: Harmony Audio HA-R124 Car Stereo Rhythm Series 600 Watt Single 4 Ohm 12" Sub:Specifications: Kicker CX300.1 Car Audio CX Series Class D Subwoofer Amplifier 600 Watt Sub Amp - Limited Stock:
1 x 2002-2013 Chevy Avalanche Car Audio Custom Dual 12" Subwoofer Enclosure Sub Box
2 x Harmony Audio HA-R124 Car Stereo Rhythm Series 600 Watt Single 4 Ohm 12" Sub
1 x Kicker CX300.1 Class D Subwoofer Amplifier 600 Watt Sub Amp
xHarmony Audio HA-AK10 Car 10 Gauge 600 Watt Amp Kit
2002-2013 Chevy Avalanche Car Audio Custom Dual 12" Subwoofer Enclosure
- Air Space: 0.48 Cubic Feet per Sub
- Mounting Depth: 4 1/2"
- Sealed Enclosure
Air Space: 0.48 Cubic Feet per Sub
Mounting Depth: 4 1/2"
Sealed Enclosure
Fits under rear seat, seat must be able to fold forward for box to fit
Subwoofers fire up towards the rear seat
Power Handling:
- Peak: 600 watts
- RMS: 300 watts
Peak: 600 watts
RMS: 300 watts
Sensitivity: 88.2dB
Frequency Response: 27Hz-1.8kHz
Mounting Depth: 5 11/16"
Mounting Cutout Diameter: 11 1/8"
Single 4 Ohm
RMS Power Rating:
- 4 ohms: 150 watts x 1 chan.
- 2 ohms: 300 watts x 1 chan.
4 ohms: 150 watts x 1 chan.
2 ohms: 300 watts x 1 chan.
Max power output: 600 watts x 1 chan.
Variable low-pass filter (50-200 Hz, 12 dB/octave)
Subsonic filter (24 dB at 25 Hz)
Frequency response: 25-200 Hz

Specs

Vehicle fitment type
Specific
Vehicle make
Chevy
Vehicle model
Avalanche
Vehicle year
2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
Vehicle type
Car
Brand
Harmony Accessory Master

Current price is $395.95

Price when purchased online

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Columbus, 43215

Arrives by Fri, May 8

Sold and shipped by HiFiSoundConnectionPro Seller

4.238670694864048 stars out of 5, based on 993 seller reviews(4.2)

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About this item

Product details

Upgrade your 2002–2013 Chevy Avalanche with the Harmony F124 Dual 12" Sub Box and CXA800.1 Amplifier combo—engineered to deliver hard-hitting, high-output bass in a clean, underseat installation. This system includes two Harmony F124 12-inch subwoofers housed in a custom-fit enclosure specifically designed to fit beneath the rear seat of your Avalanche. Wired to a final 2-ohm impedance, the subs are perfectly matched with the Kicker CXA800.1 amplifier, which delivers up to 800 watts of clean, efficient power for powerful low-end response across all genres.

The sealed enclosure is acoustically tuned to maximize the performance of the F124 subs, delivering tight, distortion-free bass that enhances your music without sacrificing rear seating or cargo space. Whether you're cruising with hip-hop, rock, or electronic, this setup offers a deep, full-bodied bass experience that fills the cabin with immersive sound. The dual 12" configuration ensures greater air displacement, resulting in deeper and more resonant bass.

Wrapped in a durable Rhino-coated finish, the enclosure is built to withstand moisture, vibrations, and daily wear—ideal for trucks used in demanding environments. The included CXA800.1 amplifier features thermal protection, a compact design, and user-friendly tuning controls, giving you full control over your sound. For Avalanche owners looking for a professional-grade bass upgrade with OEM-style fit and powerful performance, the Harmony F124 and CXA800.1 combo delivers exceptional value and sound quality.

This Package Includes the Following Items: 2002-2013 Chevy Avalanche Car Audio Custom Dual 12" Subwoofer Enclosure Sub Box: Harmony Audio HA-R124 Car Stereo Rhythm Series 600 Watt Single 4 Ohm 12" Sub:Specifications: Kicker CX300.1 Car Audio CX Series Class D Subwoofer Amplifier 600 Watt Sub Amp - Limited Stock:
1 x 2002-2013 Chevy Avalanche Car Audio Custom Dual 12" Subwoofer Enclosure Sub Box
2 x Harmony Audio HA-R124 Car Stereo Rhythm Series 600 Watt Single 4 Ohm 12" Sub
1 x Kicker CX300.1 Class D Subwoofer Amplifier 600 Watt Sub Amp
xHarmony Audio HA-AK10 Car 10 Gauge 600 Watt Amp Kit
2002-2013 Chevy Avalanche Car Audio Custom Dual 12" Subwoofer Enclosure
- Air Space: 0.48 Cubic Feet per Sub
- Mounting Depth: 4 1/2"
- Sealed Enclosure
Air Space: 0.48 Cubic Feet per Sub
Mounting Depth: 4 1/2"
Sealed Enclosure
Fits under rear seat, seat must be able to fold forward for box to fit
Subwoofers fire up towards the rear seat
Power Handling:
- Peak: 600 watts
- RMS: 300 watts
Peak: 600 watts
RMS: 300 watts
Sensitivity: 88.2dB
Frequency Response: 27Hz-1.8kHz
Mounting Depth: 5 11/16"
Mounting Cutout Diameter: 11 1/8"
Single 4 Ohm
RMS Power Rating:
- 4 ohms: 150 watts x 1 chan.
- 2 ohms: 300 watts x 1 chan.
4 ohms: 150 watts x 1 chan.
2 ohms: 300 watts x 1 chan.
Max power output: 600 watts x 1 chan.
Variable low-pass filter (50-200 Hz, 12 dB/octave)
Subsonic filter (24 dB at 25 Hz)
Frequency response: 25-200 Hz

info:

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Specifications

Vehicle fitment type

Specific

Vehicle make

Chevy

Vehicle model

Avalanche

Vehicle year

2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013

Warranty

Warranty information

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