Power amplifiers mono — Boulder 2150

The 2150 is a formidable monoblock power amplifier from Boulder, sharing a chassis platform with the 2160 stereo model, built with staggering output power. The 2150 brings Boulder's uncompromising American engineering to dedicated monoblock power amplification.

Key specs that matter

Input impedance is a substantial 200,000 ohms balanced or 100,000 ohms single-ended. Output power is a substantial 1,000W into 8 ohms, rising to a staggering 2,000W into 4 ohms. Gain is 26dBu. Frequency response spans an exceptionally wide 0.015Hz to 200,000Hz within plus-or-minus 3dB. Total harmonic distortion plus noise is 0.0008% from 20Hz-2kHz or 0.0035% at 20kHz into 8 ohms. At 342.5 x 180.0 x 107.3mm and a staggering 99.8kg, the 2150 represents a monumental monoblock commitment reflecting Boulder's uncompromising engineering standards.

Sound and use context

Expect extraordinary dynamic authority reflecting the staggering 2,000W-into-4-ohms output combined with the near-immeasurable distortion figures, representing Boulder's most accomplished current monoblock engineering.

Pairing

As a monoblock, two units are needed for a stereo pair, and Boulder's own preamplifier catalogue offers natural, brand-coherent pairings.

Alternatives

Boulder's own 3050 offers Boulder's absolute current flagship alternative within the same broader monoblock catalogue.