Ignitions and Electrical Ignition Boxes and Components

Deaf Bonce

Atom 4-Channel Class D Amplifier

$319.90

SKU: AAB-400.4D

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Deaf Bonce Apocalypse AAB-400.4D Atom is a 4-channel Class D amplifier. It features a frequency response of 10-20000 Hz and a signal-to-noise ratio of ≥100 dB.

The amplifier can deliver 430W x 4 RMS at 1 Ohm, 265W x 4 RMS at 2 Ohms, and 140W x 4 RMS at 4 Ohms. In bridge mode, it produces 833W x 2 RMS at 2 Ohms and 516W x 2 RMS at 4 Ohms.
Show original supplier description
The Deaf Bonce Apocalypse AAB-400.4D Atom is a 4-channel Class D amplifier designed for powerful audio output in a compact form factor. This amplifier boasts impressive power specifications, delivering 430W RMS x 4 at 1 Ohm, 265W RMS x 4 at 2 Ohms, and 140W RMS x 4 at 4 Ohms (14.4V). For even greater output, it can be bridged to produce 833W RMS x 2 at 2 Ohms or 516W RMS x 2 at 4 Ohms. The frequency response spans from 10Hz to 20kHz, with adjustable high-pass (15-6000 Hz) and low-pass (50-6000 Hz) filters that can operate simultaneously. Its signal-to-noise ratio is ≥100 dB, ensuring clean audio reproduction. The AAB-400.4D Atom is built with a Class D topology for high efficiency. It has input terminals for 4 AWG power/ground wires and 8 AWG speaker outputs. The minimum permissible load per channel is 1 Ohm, and in bridge mode, it's 2 Ohms. The amplifier operates within a voltage range of 9-15V and features a damping factor of ≥260. Measuring 6.30 x 8.98 x 2.50 inches and weighing 5.29 lbs (2.40 kg), this amplifier is designed for efficient installation within various vehicle setups.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandDeaf Bonce
Part NumberAAB-400.4D
CategoryIgnitions and Electrical

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy