R1 1000.1 Marine Amplifier


Each sold separately

Roswell’s R1 1000.1 amp is a mono-block stackable Class-D design, that pairs perfectly with our new R1 Subs. It also features a calibrated potentiometer. This amp is powerful, like super powerful. It can run (2) R1 12” subwoofers or (4) R1 10” subwoofers. Get bumpin’.

SKU: C920-1831SD Categories: ,

The R1 1000.1 marine-grade amplifier

Made by Roswell, is everything your boats audio system has always wanted. These stackable amplifiers utilize a mono-block Class-D design are capable of 1,000 watts RMS at 1Ω. It is the perfect pair for our new R1 & RMA Subwoofers. In fact, it can run (2) R1 12” subwoofers or (4) R1 10” subwoofers. Because LEDs create lots of noise issues, this amp features differential RCA inputs for maximum noise rejection. The R1 650.4 is built with fully conformal-coated PCB’s and nickel-plated marine-grade wire terminals to ensure their quality.


Space-saving Stackable DesignLit logo power indicator lets you know your amp is receiving power
Low-pass and subsonic filters (12 dB/oct.)Switchable Differential RCA inputs minimize interference and induced noise
Bass boost control (0-18dB @ 45Hz)Conformal-coated PCBs
Full 0-180º phase controlNickel-plated wire terminals
High-Efficiency Class-D Topology 
Continuous Power (RMS)

4Ω: 400W 2Ω: 675W 1Ω: 1000W

Frequency Response

10Hz – 400Hz

Input Sensitivity

0.2 – 10.0V

HPF (High Pass Filter)

30Hz – 300Hz

LPF (Low Pass Filter)

30Hz – 300Hz

Bass EQ

0 ~18dB @ 45Hz

Subsonic Filter

10Hz – 55Hz


Inches: 1.90 x 7.0625 x 11.125 Centimeters: 4.83 x 17.94 x 28.26