Mobile Electronics› Power Accessories

Alphard Audio

Class D Monoblock Amplifier

$379.90

SKU: ATOM 3.5K PRO

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 Alphard Audio ATOM 3.5K PRO is a Class D monoblock amplifier designed to deliver powerful audio output. It features a frequency response of 10 - 20,000 Hz and can produce 3500 watts RMS at 1 Ohm with a 14.4V input.

This amplifier includes adjustable crossover, subsonic, and low-pass filters, along with bass frequency adjustment for fine-tuning your audio system. It supports a minimum load of 1 Ohm and utilizes 0 Ga input terminals and 4 Ga output terminals.
Show original supplier description
The Alphard Audio ATOM 3.5K PRO is a robust Class D monoblock amplifier engineered to provide substantial power for demanding audio systems. With a rated output of 3500 watts RMS into a 1-Ohm load at 14.4V, this amplifier ensures loud, controlled, and clean bass. Designed for versatility, the ATOM 3.5K PRO boasts a wide frequency response from 10 Hz to 20,000 Hz. It offers comprehensive tuning capabilities, including an adjustable low-pass filter (80 Hz - 20,000 Hz), a subsonic filter (10 Hz - 80 Hz), and a bass frequency adjustment range of 35 Hz - 90 Hz. The 12 dB/Oct crossover further allows for precise audio system integration. This monoblock amplifier is built to handle a minimum permissible load of 1 Ohm. It features heavy-duty input terminals for 0 Gauge power wire and 4 Gauge output terminals, ensuring efficient power delivery. The amplifier operates within a working voltage range of 9-16V and offers a signal-to-noise ratio of ≥ 85 dB for clear audio reproduction. Its compact dimensions of 10 x 8.6 x 2.6 inches facilitate installation in 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

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Specifications

BrandAlphard Audio
Part NumberATOM 3.5K PRO
CategoryMobile Electronics

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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.

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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.

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