Alpine S-W12D4BX 12" Subwoofer Fits 14-18 Chevy Silverado Crew Cab w/ HA-A800.1
SKU:ALPINE-PACK113A-AMP-H
- Complete kit: 12" Type S subwoofer, crew cab enclosure, HA-A800.1 amplifier, and HA-AK4 wiring in one purchase
- Box built for the truck: sealed 0.74 cu ft MDF cabinet, 24-3/4" x 16-1/2" x 9-3/4", down-firing under the 2014-up crew cab rear seat
- Amp muscle: 800 watts RMS x 1 into 1 ohm or 600 watts RMS x 1 into 2 ohms, with a 10Hz-180Hz response
- Tuning on tap: variable low pass from 40Hz-180Hz, adjustable subsonic filter, and up to 12dB of boost at 50Hz
- Signal flexibility: a switch selects high or low level input, and DC offset sensing wakes the amp behind a factory radio
- Wired remote: bass level knob with an LED status light mounts within reach up front
- Matched woofer: S-W12D4 handles 600W RMS through dual 4 ohm coils with a Kevlar-blend cone
- HA-AK4 contents: 4GA power and ground runs, RCAs, remote lead, speaker wire, and a 150A ANL fuse with holder
In this package:
- Harmony Audio HA-SWKS Install Kit
- 2014-2018 Silverado Crew Cab 12" Subwoofer Box | ASC Enclosure: Sealed, for 12" subs, 1 chamber(s), 0.74 cu ft per sub, fits 2014-UP Chevy Silverado Crew Cab Truck
- Alpine S-W12D4 Car Audio Type S Series Sub Dual 4 Ohm 1800W Peak 12" Subwoofer: 12" sub, 600W RMS, 1800W peak, Dual voice coil, 4 ohm, 86.4dB sensitivity
- Harmony Audio HA-A800.1 Amplifier: Class D, 800W RMS at 1 ohm, 600W RMS at 2 ohm, 1600W peak, LPF 40-180Hz, bass remote included
- Harmony Audio HA-AK4 Amp Wiring Kit: 4 gauge, 17 ft power wire, 17 ft RCA, 150A fuse, ANL holder

SKU:ALPINE-PACK113A-AMP-H
- Complete kit: 12" Type S subwoofer, crew cab enclosure, HA-A800.1 amplifier, and HA-AK4 wiring in one purchase
- Box built for the truck: sealed 0.74 cu ft MDF cabinet, 24-3/4" x 16-1/2" x 9-3/4", down-firing under the 2014-up crew cab rear seat
- Amp muscle: 800 watts RMS x 1 into 1 ohm or 600 watts RMS x 1 into 2 ohms, with a 10Hz-180Hz response
- Tuning on tap: variable low pass from 40Hz-180Hz, adjustable subsonic filter, and up to 12dB of boost at 50Hz
- Signal flexibility: a switch selects high or low level input, and DC offset sensing wakes the amp behind a factory radio
- Wired remote: bass level knob with an LED status light mounts within reach up front
- Matched woofer: S-W12D4 handles 600W RMS through dual 4 ohm coils with a Kevlar-blend cone
- HA-AK4 contents: 4GA power and ground runs, RCAs, remote lead, speaker wire, and a 150A ANL fuse with holder
In this package:
- Harmony Audio HA-SWKS Install Kit
- 2014-2018 Silverado Crew Cab 12" Subwoofer Box | ASC Enclosure: Sealed, for 12" subs, 1 chamber(s), 0.74 cu ft per sub, fits 2014-UP Chevy Silverado Crew Cab Truck
- Alpine S-W12D4 Car Audio Type S Series Sub Dual 4 Ohm 1800W Peak 12" Subwoofer: 12" sub, 600W RMS, 1800W peak, Dual voice coil, 4 ohm, 86.4dB sensitivity
- Harmony Audio HA-A800.1 Amplifier: Class D, 800W RMS at 1 ohm, 600W RMS at 2 ohm, 1600W peak, LPF 40-180Hz, bass remote included
- Harmony Audio HA-AK4 Amp Wiring Kit: 4 gauge, 17 ft power wire, 17 ft RCA, 150A fuse, ANL holder

Although many orders are shipped the same day that we receive them, due to a variety of factors it can take up to 24 hours to process your credit card information and ship your order. FedEx picks up shipments daily, Monday through Friday around 4:00 PM (Eastern Time). They DO NOT operate on weekends or holidays. If you place an order for shipping on Friday night, the next available shipping day is Monday.


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You can call us from Monday through Friday from 8:30AM - 9:00PM Central Standard Time or Saturday through Sunday from 10:00AM to 7:00PM Central Standard Time.
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- We are not responsible for any shipping and/or handling charges to return an item to HiFiSoundConnection. We will pay the shipping of replacements back to your location.
- Your refund will be subject to a 20% restocking fee with a $10.00 minimum fee.
- If exchanging you will NOT be subject to the 20% restocking fee. You WILL have to pay the return shipping costs.
- We doNOTrefund the amount you paid for shipping, duties, taxes, or any other charge incurred getting the item to your location.
- We reserve the right to charge a 35.00 flat fee on warranty / exchanges if the original product packaging is not included.
- Other fees associated with items not included with the returned merchandise such as bass knobs, fuse holders, manuals, etc that were not included with the package are also subject to additional fees depending on the item not returned.
- All returns require an RMA (return merchandise authorization) number. Any packages sent back without an RMA number will be delayed and possibly rejected. Please contact us to obtain an RMA number.
- All returns will be tested before any refund is given.
- All International Sales are final, the return/exchange policy does not apply to International orders
- The return policy does not cover damage due to improper installation, if an item was physically altered by you, or services performed by anyone other than HiFiSoundConnection.
- We are not responsible for any shipping and / or handling charges to return a defective item to HiFiSoundConnection.
- We will pay for the shipping on the replacement product going back to your location.
- We reserve the right to refer you to the manufacturer for any warranty exchanges.
- We reserve the right to switch you to a comparable product if the original product is out of stock or discontinued.
- We will not send your replacement item until we have received and checked in the defective product, this may take up to5 business days. All returns will be tested before any refund is given.
- Any item that is returned MUST first have RMA (return merchandise authorization) number before sending the package, if the package does not have an RMA number clearly on the outside of the return packaging it will be automatically refused. Please contact us to obtain an RMA number.
- Subwoofer Exception: Our warranty does not cover blown voice coils, or subwoofers that have been punctured. This is considered abuse by the manufacturer and is not covered under warranty.
- Defective items cannot be returned for a refund.
- All International Sales are final, the return/exchange policy does not apply to International orders
- The return policy does not cover damage due to improper installation, if an item was physically altered by you, or services performed by anyone other than HiFiSoundConnection.


























