DAS Audio Integral A1604 4-Channel Install Amplifier

The Integral A1604 is the largest four-channel amplifier in the Integral install line, each channel rated 400 W into 4 ohms in a 2U Class D chassis. It runs on a universal switching supply with auto-standby for low idle power draw. Channel pairs bridge to 2 x 800 W for 70V or 100V distributed lines, covering both direct-drive zones and constant-voltage runs from one amplifier.

Connections are euro-block terminal blocks for signal and speaker lines, with an IEC AC inlet. A rear switch sets stereo or bridge mode per pair and can add an 80 Hz, 12 dB/octave high-pass filter. Front LEDs report power, protect/standby and signal/clip per channel.