Stetsom IR 800.4 Compact 4 Channel Digital Amplifier – 800W RMS Full Range 2 Ohms Stable

Stetsom IR 800.4 Compact 4 Channel Digital Amplifier – 800W RMS Full Range 2 Ohms Stable
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The Stetsom IR 800.4 is built for people who want a compact 4 channel amplifier that still brings real speaker power and clean full-range sound. This amp is designed for tighter installs where space matters, but you still need enough output to properly run mids, highs, or a full-range speaker setup. Stetsom positions it as a compact, full-range 4-channel amplifier engineered for clarity, versatility, and efficiency in modern car audio systems.

At 12.6 volts, the IR 800.4 is rated at 800 watts RMS total, and the page lists 1060 watts peak RMS at 14.4 volts. It is a 4-channel digital full-range amplifier that is stable at 2 ohms, which makes it a strong fit for people upgrading factory speakers, building a louder mids-and-highs setup, or putting together a compact multichannel system that still needs real power.

One of the nicer things about this amp is how easy it is to integrate. The page lists both RCA and high-level inputs, so it works well with factory or aftermarket systems. Stetsom also includes fixed 90 Hz high-pass and low-pass crossovers, plus a flat mode that bypasses filters for full-frequency playback. That gives you a simple but useful set of options depending on how you want to run the amp in the vehicle.

Stetsom also calls out a compact design with a powerful internal cooler to help with heat dissipation and longer play time under use. For wiring, the page lists 6 AWG power and ground terminals, 18 AWG remote turn-on, 13 AWG speaker outputs, and a recommended 40A fuse installed within 12 inches of the battery. In a real-world build, that makes this a very practical amp for someone who wants good output in a smaller chassis without turning the install into a headache.

Whether you are powering door speakers, building a compact mids-and-highs setup, or just upgrading from head-unit power, the Stetsom IR 800.4 gives you useful 4 channel output, simple input flexibility, and a chassis that is easy to fit in tighter spaces.

Key Features

Number of Channels: 4-channel digital full-range amplifier.

Power Output: 800W RMS at 12.6V.

Peak Power Output: 1060W peak RMS at 14.4V.

Impedance: Stable at 2 ohms.

Input Options: RCA and high-level inputs for factory or aftermarket integration.

Crossover High Pass Filter: Fixed at 90 Hz.

Crossover Low Pass Filter: Fixed at 90 Hz.

Flat Mode: Bypasses filters and adjustments for full-frequency playback.

Cooling: Compact design with powerful internal cooler for heat dissipation and extended play time.

Power/Ground Terminals: Accepts 6 AWG.

Remote Turn-On Wire: 18 AWG.

Speaker Output Wire: 13 AWG.

Recommended Fuse: 40A installed within 12 inches of the battery.

Whether you are putting together a cleaner daily-driver system or need a compact full-range amp with enough output to wake up the whole speaker setup, the IR 800.4 gives you practical power and install-friendly design in one small package.