Condition: New (Open Box). The amplifier is brand new and has never been installed or used. All original accessories are included. Note: The original manufacturer's box is heavily worn/damaged from storage, but the internal unit is in great condition.

Item Description:

This listing is for a Precision Power (PPI) A1800.1D ATOM Series Class D Monoblock Amplifier. This compact, high-efficiency Korean-design amplifier is built for high-output subwoofer applications, delivering up to 1800W RMS at a 1-ohm stable load.

Key Specifications and Features:

• RMS Power Output:

• 650W x 1 @ 4-Ohms

• 1,000W x 1 @ 2-Ohms

• 1,800W x 1 @ 1-Ohm

• Amplifier Class: High-efficiency Korean Class-D

• Circuitry: Military-grade SMT PCB for stable, dynamic performance

• Power Supply: MOSFET power supply utilizing audiophile-grade IR™ transistors

• Sound Tuning:

• Variable 12dB Low Pass and Subsonic Crossovers

• Selectable 12dB Bass Boost for low-octave harmonics

• Phase Shift adjustment

• Installation Design: Features mounting pedestals that elevate the heatsink to improve airflow and rubber grommets to isolate the chassis and reduce ground loop noise.

What’s Included:

• 1 x Precision Power A1800.1D Monoblock Amplifier

• 1 x Wired Remote Dash Mount Bass Gain Controller

• 1 x High-Level Signal Input Adapter

• 1 x User Manual

• Mounting Screws

Technical Details:

• Dimensions: 13.25" L x 6" W x 2.25" H

• Inputs: Tiffany-style/Panel-mount RCA inputs and high-level inputs (200mV-6V).

• Terminals: 4-gauge power/ground inputs and 12-gauge speaker terminals.