Power amplifiers mono — Vitus Audio SM-011

The SM-011 is a monoblock power amplifier from Vitus Audio, sitting below the MP-M201 MK.II with substantial output power. The SM-011 brings Vitus's uncompromising Danish engineering to serious monoblock power amplification.

Key specs that matter

Input sensitivity is 2,000mV, with input impedance at 10,000 ohms on both connections. Output impedance is a remarkably low 0.075 ohms single-ended. Output power is 200W into 8 ohms, rising to 400W into 4 ohms. Frequency response extends up to an exceptionally wide 800,000Hz within plus-or-minus 3dB. Signal-to-noise ratio exceeds 110dB, with total harmonic distortion plus noise under 0.01% at 100% global feedback. At 135 x 435 x 436mm and 36kg, the SM-011 maintains a manageable monoblock chassis relative to Vitus's broader flagship catalogue.

Sound and use context

Expect exceptionally clean, tightly controlled amplification reflecting the remarkably low output impedance combined with the strong over-110dB signal-to-noise figure, consistent with Vitus's broader uncompromising engineering philosophy.

Pairing

As a monoblock, two units are needed for a stereo pair, and the remarkably low output impedance handles demanding loudspeaker loads with exceptional control.

Alternatives

Vitus's own SM-025 offers a somewhat more powerful alternative within the same broader monoblock catalogue.