2014 - 2018 Chevy Silverado Crew Cab Single 12" Sub Box — Harmony HA-R124 with Kicker CX300.1 600W Amp (CXA4001) & HA-AK10 Kit

Package includes: 1 x 2014 - 2018 Chevy Silverado Crew Cab Truck Single 12" Sub Box Subwoofer Enclosure, 1 x Harmony Audio HA-R124 Rhythm Series 12" package sub, 1 x Kicker CX300.1 Car Audio CX Series Class D Subwoofer Amplifier 600 Watt Sub Amp (Limited Stock), and 1 x Harmony Audio HA-AK10 Car Stereo Complete 10 Gauge 600W Amp Amplifier Install Kit - Nickel. Enclosure details: Custom single 12" subwoofer enclosure designed to fit under the rear seat of 2014 - 2018 Chevy Silverado Crew Cab trucks, with the woofer firing downward. Constructed from high quality MDF and finished in high quality black carpet. Terminal cup accepts high quality twist knob / banana plug connections and bare wire up to 10GA. Mounting Depth: 6-1\/2". Air Space: 0.74 Cubic Feet. Sealed enclosure. Overall Dimensions: 24-3\/4" L X 16-1\/2" W X 9-3\/4" H. Harmony HA-R124 12" Rhythm Series subwoofer specs: Power Handling: 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". Recommended sealed box volumes: Min Sealed Box Volume (Cubic Feet): 1.25, Max Sealed Box Volume (Cubic Feet): 3.52. Recommended vented box volumes: Min Vented Box Volume (Cubic Feet): 1.65, Max Vented Box Volume (Cubic Feet): 2.3. Kicker CX300.1 single-channel Class D amplifier features: Single 4 Ohm CX Series operation with RMS power ratings of 150 watts x 1 chan. at 4 ohms and 300 watts x 1 chan. at 2 ohms; maximum power output: 600 watts x 1 chan. Pulse Width Modulated MOSFET power supply, LED power (green) and protect (red) indicators. Variable Bass Boost: 0 to +12 dB at 40 Hz. Speaker-level (high-level) inputs include signal sensing for automatic turn-on; preamp RCA outputs allow daisy chaining multiple amps. Built-in 3-way protection circuitry (thermal, overload, and speaker short protection) and dual speaker terminals for easier multi-speaker hookups. Construction highlights include a heavy duty aluminum alloy heat-sink, nickel-plated RCA level inputs, and nickel-plated screw terminals. Controls and filters: Input sensitivity—Low level: 125mV-5V; High level: 250mV-10V. Variable low-pass filter (50-200 Hz, 12 dB\/octave) and a subsonic filter (24 dB at 25 Hz). CEA-2006 compliant amplifier with a frequency response of 25-200 Hz. Installation notes: 8 gauge power and ground wiring is required for proper installation. Amplifier dimensions: 7-3\/16"W x 8-1\/8"D x 2-3\/8"H. This kit delivers a sealed under-seat single-12 solution tailored for 2014 - 2018 Chevy Silverado Crew Cab trucks, pairing the Harmony HA-R124 sub with a powerful Kicker CX300.1 amplifier and a complete HA-AK10 10 gauge install kit.