This box fits: 1988 - 1998 Chevy C/K Extended Cab Frequency Response: 10Hz-180Hz 1 x Harmony Audio HA-A400.1 Class D Mono 800W Sub Amp 1988 - 1998 GMC Sierra Extended Cab 1996 Chevy Silverado Accessories 88-98 Chevy CK Silverado Ext Truck Kicker CompR CWR12 Single 12 Sub Box 4 Ohm F5b0e56a 759e 40ca 9d9e 0471f2a56c91.14cc0f28f5d32b6dc59d1ea3217682fe 1992 Chevy Silverado 1500 Parts Turn On: DC Offset or 12V Remote Harmony Audio Compatible with 1988-1998 Chevy CK Silverado Extended Truck Kicker Bundle Comp C10 Single 10 Sub Box Enclosure & Harmony HA-A400.1 Amp. 5.0... 1 x Harmony Audio HA-AK4 Car 4 Gauge Amp - Nickel Power Watts: 300W Peak / 150W RMS Sensitivity: 86.2 dB Freq. Response: 30-500 Hz Mounting Depth: 5-1/16 Mounting Diameter: 9-1/8 Harmony Audio HA-A400.1 Class D Mono 800W Sub Amp: Specifications: Power Handling: 14.4V @ 1 Ohm 400 Watts RMS x 1 800 Watts PEAK x 1 14.4V @ 2 Ohm 300 Watts RMS x 1 600 Watts PEAK x 1 Features: Includes Remote Bass Control Knob with Power Indicator LED 2020 Silverado 1500 Audio Upgrade Kicker Subwoofer System, 41% OFF Constructed with High Quality MDF Premium Vector | Family forever for always no matter what Dimensions: Width 23-3/4 x Front Height 10 x Rear Height 2 x Depth 13-1/4 Custom 10 88-98 Chevy CK Extended Cab Subwoofer Box: Features: Single 10 88-98 Chevy Extended Cab Sub Box Air Space: 0.90 Cubic Feet Mounting Depth: 6 Sealed Enclosure