A700.4D Amplifier

ATOM Series 4Ch Digital Power Amplifier


RMS Power 4Ω 100W x 4 (14.4V, 1KHz, ≤ 1% THD+N)
RMS Power 2Ω 175W x 4 (14.4V, 1KHz, ≤ 1% THD+N)
RMS Bridged 4Ω 350W x 2 (14.4V, 1KHz, ≤ 1% THD+N)

Category: Tags: , ,


ATOM amplifiers adopt the most exemplary Korean Class-D performance, reliability, and footprint of the original ATOM and iOn platforms. At first glance, you’ll notice several key improvements. ATOM’s signal inputs, power/ground, and speaker connections are relocated to the chassis’s leading edge for an easier, more appealing install. All pre-amp & crossover options are conveniently located on the backside. You might not notice additions to the circuit board, including improved power supply & output stage components & monoblock bridging capability.

The installation of ATOM amplifiers is unique, using mounting pedestals at each corner. The pedestals elevate the heatsink, improving airflow around and underneath the chassis. Additionally, rubber grommets under and inside each pedestal electrically isolate the amplifier chassis from the vehicle chassis, reducing the potential for ground loop noise.


All New ATOM Series 

Sequenced Delays Eliminate Residual Power-Up/Power-Down Pops

Differential RCA Inputs Isolate 12v/Audio to Ground

Hybrid Aluminum Alloy Heatsink for Heat Optimum Dissipation

MOSFET Power Supply w/ Audiophile Grade IR™ Transistors 

Military Grade SMT PCB for Dynamic Performance 

Volume, Low ESR Capacitance Banks Compensate Power Supply Ripple

Individually Regulated Preamp/Crossover Power Supply Ensures Signal Purity

Variable 12dB High Pass, Low Pass, & Subsonic Crossovers

200mV-6V Low-Level RCA & High-Level Signal Input

12dB Bass Boost Increase Low Octave Harmonics

Amplifier Dimensions: 6″W x 2.25″H x 10″L

Made in Korea


Warranty Procedure 

Please complete the entire Return Authorization Request Form. Read carefully and fill out all the information accordingly. For non-warranty repairs, please provide details of the problem and request an estimate before sending the product. After receiving and approving your completed request, Precision Power will issue a Return Authorization (RA) Number, which will be forwarded to you via e-mail.

Dealer Locator