Skar Audio RP-3500.1D Monoblock Class D Amplifier — 3,500W RMS @ 1 Ohm with Remote Bass Control

Powerful, reliable bass amplification for your car audio

The Skar Audio RP-3500.1D is a competition-grade Class D monoblock amplifier designed to deliver serious bass with efficiency and long‑term reliability. Conservatively rated at 3,500 watts RMS at a 1‑ohm load, it also offers the potential for higher peak power when driven to the max. The combination of a high‑speed MOSFET power supply and careful PCB layout contributes to a robust, responsive performance that audiophiles and enthusiasts can rely on as they push their subwoofers to new levels.

With oversized 1/0 gauge power and ground terminals, this amplifier is built to handle higher current demands. That design detail supports steadier output and more dynamic bass, especially in demanding musical passages or high‑volume play sessions where bass response matters most.

Key specs at a glance

• Peak power at 1 ohm: 5,400 watts
• RMS power at 1 ohm: 3,500 watts
• Stable at 1 ohm with remote subwoofer level control
• Frequency response: 20 Hz – 250 Hz
• On‑board bass boost: 0–9 dB

Flexible tuning and control

The built‑in control panel provides user tweaks to shape your bass precisely for your vehicle and listening space. You can adjust gain for clean level matching, apply bass boost for added impact, and set filters to protect and tailor the signal:

• Subsonic filter: 10–50 Hz
• Low‑pass filter: 35–250 Hz
• Phase control: 0–180 degrees

Protection, reliability, and convenience

Four‑way protection circuitry guards the amp against common issues like electrical shortage and overheating, helping to preserve performance over time. A remote subwoofer level control (bass knob) lets you adjust bass from the front seat, while input/output RCA connections support daisy chaining between multiple amplifiers. The master/slave strap feature simplifies multi‑amp setups.

Connectivity and setup ideas

Thanks to the RCA inputs and outputs, you can easily link multiple amplifiers for synchronized bass, or use a single high‑power channel for a dedicated sub. The RP‑3500.1D is built for serious bass enthusiasts who value both power and control without sacrificing reliability.