Boulder 1163 Stereo Power Amplifier

The 1163 is a more compact alternative to the 1162, sized for smaller rooms or more efficient speakers, sharing the 1110 preamplifier's footprint.

It uses Boulder's proprietary 985 gain stage and the same protection circuitry as the 1162, with a revised automatic biasing circuit that removes the need for manual calibration, and its firmware can be updated by download or USB.

Specifications

• Power: 150W continuous into 8, 4 or 2 ohms, peak 200W at 8 ohms, 325W at 4 ohms, 550W at 2 ohms
• THD: 0.002% to 0.02%
• Inputs: balanced XLR, 50k ohms bal, 25k ohms unbal
• Outputs: dual wingscrew posts
• Weight: 54 lbs