The Russound A2100 is a compact Class D stereo power amplifier for adding clean, efficient power to a distributed or dedicated audio system. It occupies half of a 1U rack space, so two half-rack Russound components can share a single shelf, and the supplied ears allow it to be mounted on its own in a standard rack. Rated at 100 watts per channel into 8 ohms, 125 watts into 4 ohms, or about 225 watts bridged into a single 8-ohm load, it is well suited to large rooms, additional speaker pairs, patios and pool decks where a multiroom controller's built-in amplification runs short. A 12V trigger input lets the A2100 wake with the rest of the system, and a trigger output passes that command along. The buffered line output feeds the same signal to another amplifier for expansion. Removable screw-down speaker terminals simplify rack wiring, and an auto-switching universal power supply with very low standby consumption keeps it efficient when idle.
Key Features
- Class D stereo amplification in a half-rack 1U footprint
- Bridgeable to about 225W mono
- 12V trigger in and out
- Buffered line out for expansion
- Removable speaker connectors and cable lock
- Auto-switching 100-240VAC supply
Ideal Applications
Powering outdoor or large-room zones, driving extra speaker pairs, upgrading an underpowered multiroom zone, or feeding a passive subwoofer or high-power pair in a rack-mounted system.
Compatibility
Accepts line-level signals from Russound multiroom controllers (MCA series), streamers, preamps or any line-level source. Pair with another Russound half-rack product to fill a 1U shelf. Drives 4-ohm loads in stereo; 8-ohm minimum when bridged.