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2014-2018 Chevy Silverado Crew Cab Harmony HA-F124 Dual 12" Sub Box CXA800.1 Amp

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Key item features

1 x 2014 - 2018 Chevy Silverado Crew Cab Truck Dual 12" Sub Box Subwoofer Enclosure
2 x Harmony Audio HA-F124 Car Stereo Flatline Series 12" Sub 800W Single 4 Ohm Subwoofer
1 x Kicker CX600.1 Car Audio CX Series Class D Subwoofer Amplifier 1200 Watt Sub Amp - Limited Stock
1 x Harmony Audio HA-AK8 Car Stereo Complete 8 Gauge 900W Amp Amplifier Install Kit - Nickel
2014 - 2018 Chevy Silverado Crew Cab Truck Custom Dual 12" Subwoofer Enclosure Sub Box Mounting Depth: 6-1/2" Air Space: 0.74 Cubic Feet per Sub Sealed Enclosure
Mounting Depth: 6-1/2"
Air Space: 0.74 Cubic Feet per Sub
Sealed Enclosure
Mounting Depth: 6-1/2"
Air Space: 0.74 Cubic Feet per Sub
Sealed Enclosure
Constructed with High Quality MDF
High Quality Twist Knob / Banana Plug Terminal Cup (Bare Wire 'up to 10GA')
High Quality Black Carpet
Overall Dimensions: 49-1/2" L X 16-1/2" W X 9-3/4" H
Enclosure installs under the rear seat, subs fire downward
2014 - 2018 Chevy Silverado Crew Cab Truck
12" Flatline Series Car Subwoofer
Power Handling: Peak: 800 watts RMS: 400 watts
Peak: 800 watts
RMS: 400 watts
Peak: 800 watts
RMS: 400 watts
Sensitivity: 87.3dB
Frequency Response: 25Hz-1.2Hz
Mounting Depth: 4 1/2"
Mounting Cutout Diameter: 11 1/8"
Min Sealed Box Volume (Cubic Feet): 0.55
Max Sealed Box Volume (Cubic Feet): 3
Min Vented Box Volume (Cubic Feet): 1.68
Max Vented Box Volume (Cubic Feet): 2.25
Single 4 Ohm
CX Series Single-Channel Class D Car Amplifier
RMS Power Rating: 4 ohms: 300 watts x 1 chan. 2 ohms: 600 watts x 1 chan.
4 ohms: 300 watts x 1 chan.
2 ohms: 600 watts x 1 chan.
4 ohms: 300 watts x 1 chan.
2 ohms: 600 watts x 1 chan.
Max power output: 1200 watts x 1 chan.
Pulse Width Modulated MOSFET power supply
LED power (green) and protect (red) indicators
Variable Bass Boost (0 to +12 dB bass boost at 40 Hz)
Single channel operation
Speaker-level (high-level) inputs with signal sensing for automatic turn-on
Preamp RCA outputs to daisy chain multiple amps
3-way protection circuitry (thermal, overload, and speaker short protection)
Dual speaker terminals simplify the hookup of multiple speakers
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
Low level: 125mV-5V
High level: 250mV-10V
Low level: 125mV-5V
High level: 250mV-10V
Variable low-pass filter (50-200 Hz, 12 dB/octave)
Subsonic filter (24 dB at 25 Hz)
CEA-2006 compliant amplifier
Frequency response: 25-200 Hz
4 gauge power and ground wiring is required for installation
Dimensions: 7-3/16"W x 8-1/8"D x 2-3/8"H

Specs

Vehicle year
2014
Vehicle fitment type
Specific
Brand
Harmony Accessory Master
Automotive specialty part type
Subwoofer Enclosure
Features
Automatic
Material
MDF

Current price is $582.95

Price when purchased online

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Columbus, 43215

Arrives by Sat, Apr 25

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

Compatible with 2014–2018 Chevy Silverado Crew Cab, the Harmony HA-F124 Dual 12" Sub Box paired with the Kicker CXA800.1 Mono Amplifier delivers a powerful, high-performance bass upgrade in a sleek, factory-fit design. With a final 2-ohm impedance, this system is optimized for efficient power delivery and clean, hard-hitting low-end sound.

The HA-F124 enclosure is custom-built to fit perfectly under the rear seat, preserving your truck’s interior space while housing two 12" subwoofers. Precision-tuned for tight, distortion-free bass, it enhances your music experience across all genres—from deep lows in hip-hop to rich tones in rock and country.

Paired with the Kicker CXA800.1 amplifier, this combo delivers up to 800 watts of consistent RMS power, ensuring your subwoofers perform at their peak. Whether you’re commuting or cruising, this Harmony and Kicker setup offers an ideal blend of power, clarity, and seamless installation for serious audio enthusiasts.

1 x 2014 - 2018 Chevy Silverado Crew Cab Truck Dual 12" Sub Box Subwoofer Enclosure
2 x Harmony Audio HA-F124 Car Stereo Flatline Series 12" Sub 800W Single 4 Ohm Subwoofer
1 x Kicker CX600.1 Car Audio CX Series Class D Subwoofer Amplifier 1200 Watt Sub Amp - Limited Stock
1 x Harmony Audio HA-AK8 Car Stereo Complete 8 Gauge 900W Amp Amplifier Install Kit - Nickel
2014 - 2018 Chevy Silverado Crew Cab Truck Custom Dual 12" Subwoofer Enclosure Sub Box Mounting Depth: 6-1/2" Air Space: 0.74 Cubic Feet per Sub Sealed Enclosure
Mounting Depth: 6-1/2"
Air Space: 0.74 Cubic Feet per Sub
Sealed Enclosure
Mounting Depth: 6-1/2"
Air Space: 0.74 Cubic Feet per Sub
Sealed Enclosure
Constructed with High Quality MDF
High Quality Twist Knob / Banana Plug Terminal Cup (Bare Wire 'up to 10GA')
High Quality Black Carpet
Overall Dimensions: 49-1/2" L X 16-1/2" W X 9-3/4" H
Enclosure installs under the rear seat, subs fire downward
2014 - 2018 Chevy Silverado Crew Cab Truck
12" Flatline Series Car Subwoofer
Power Handling: Peak: 800 watts RMS: 400 watts
Peak: 800 watts
RMS: 400 watts
Peak: 800 watts
RMS: 400 watts
Sensitivity: 87.3dB
Frequency Response: 25Hz-1.2Hz
Mounting Depth: 4 1/2"
Mounting Cutout Diameter: 11 1/8"
Min Sealed Box Volume (Cubic Feet): 0.55
Max Sealed Box Volume (Cubic Feet): 3
Min Vented Box Volume (Cubic Feet): 1.68
Max Vented Box Volume (Cubic Feet): 2.25
Single 4 Ohm
CX Series Single-Channel Class D Car Amplifier
RMS Power Rating: 4 ohms: 300 watts x 1 chan. 2 ohms: 600 watts x 1 chan.
4 ohms: 300 watts x 1 chan.
2 ohms: 600 watts x 1 chan.
4 ohms: 300 watts x 1 chan.
2 ohms: 600 watts x 1 chan.
Max power output: 1200 watts x 1 chan.
Pulse Width Modulated MOSFET power supply
LED power (green) and protect (red) indicators
Variable Bass Boost (0 to +12 dB bass boost at 40 Hz)
Single channel operation
Speaker-level (high-level) inputs with signal sensing for automatic turn-on
Preamp RCA outputs to daisy chain multiple amps
3-way protection circuitry (thermal, overload, and speaker short protection)
Dual speaker terminals simplify the hookup of multiple speakers
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
Low level: 125mV-5V
High level: 250mV-10V
Low level: 125mV-5V
High level: 250mV-10V
Variable low-pass filter (50-200 Hz, 12 dB/octave)
Subsonic filter (24 dB at 25 Hz)
CEA-2006 compliant amplifier
Frequency response: 25-200 Hz
4 gauge power and ground wiring is required for installation
Dimensions: 7-3/16"W x 8-1/8"D x 2-3/8"H

info:

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Specifications

Vehicle year

2014

Vehicle fitment type

Specific

Brand

Harmony Accessory Master

Automotive specialty part type

Subwoofer Enclosure

Warranty

Warranty information

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