DAS Audio Integral A1004 4-Channel Install Amplifier

The Integral A1004 is a four-channel, 2U Class D amplifier for permanent installation, each channel rated 250 W into 4 ohms. Its universal switching supply and auto-standby function limit standby power draw. Channel pairs bridge to 2 x 500 W for 70V or 100V distributed lines, so one chassis can cover both direct-drive zones and a constant-voltage run.

Signal and speaker connections are euro-block terminal blocks, 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 show power, protect/standby state and signal/clip per channel.