New DS18 gear in stock: SMD-8500.1D amp + NXL-IQ8 marine speakers Shop now
Lease-to-own financing available at checkout Learn more
Real support Mon to Sat, 8AM to 6PM EST Get help
Shop by brand

19 brands

See all brands
Ruthless Audio

800.4 MICRO Multichannel Amplifier Ruthless Audio RA-M800.4

$249.99

Lease for as low as $11.3/week. Apply Now

RMS Power800W
Sensitivity95dB
Weight20lb
01 Overview

The details

Product Overview

Your car audio install needs the perfect balance of stealth and strength. The all-new Ruthless Audio 800.4 Micro Amplifier is built for those who want serious power without going overboard. Delivering a true 800 watts RMS, it’s the amplifier that bridges the gap between daily-driver convenience and competition-grade output. Very compact, space limited install friendly design. The 800.4 is slim enough for tight installs, yet strong enough to power serious full systems.

With 800 Watts RMS, that is a sweet spot of power for driving high end component speakers and pro-audio setups with authority. Bringing precision Class-D design and delivering high-efficiency performance with razor sharp clarity. That power allows for flexible configurations, power all your door speakers or even bridge into 2 channels for bigger loads. Built Ruthless tough, proven rugged construction for long-lasting, dependable performance. Whether you’re upgrading a stock system or building a custom setup, the 800.4 Micro Amplifier delivers the muscle you need with the control you want — all in a ruthlessly compact chassis.

Length 9.25” overall (heatsink 8.25”)

Width 4.7”

Height 2.2”

Key Features
  • RMS POWER: 200W x 4 @ 14.4V – 2 ohms
  • RMS POWER: 120W x 4 @ 14.4V – 4 ohms
  • Frequency Response: 20Hz – 8KHz
  • High Pass Filter: 20Hz – 8kHz
  • Low Pass Filter: 50Hz – 8kHz
  • Signal to Noise Ratio: 95dB <
  • Fuse Rating: 80
  • Operating Voltage: 9 to 16 Volts

02 Tech specs

By the numbers

RA-M800.4 · Manufacturer rated
RMS Power 01
800W
Continuous rating
Sensitivity 02
95dB
Efficiency
Weight 03
20lb
Per unit

Channels
2 Channel
Amplifier Class
Class D
RMS Power
800 Watts RMS
Impedance
2 Ohms
Voltage
14.4 Volts

Sensitivity
95 dB
Frequency Response
20 Hz – 8 kHz

Weight
20 lbs
Dimensions
18 × 13 × 6 in
03 Complete the build

Power it right

Shop all