Power amplifiers stereo — Rotel RB-1552 MkII

The RB-1552 MkII is a stereo power amplifier from Rotel, built with a substantial signal-to-noise figure and an exceptional damping factor. The RB-1552 MkII brings Rotel's value-focused engineering to serious two-channel power amplification.

Key specs that matter

Input sensitivity is 2.5mV via XLR or 1.5mV via RCA, with input impedance at 100,000 ohms balanced or 12,000 ohms single-ended. Output power is 130W into 8 ohms, rising to 185W into 4 ohms. Gain is 22.5dBu via XLR or 26.5dBu via RCA. Signal-to-noise ratio is a substantial 120dB, with total harmonic distortion plus noise under 0.03% at 100% global feedback. Maximum power consumption is 400W. Damping factor is an exceptional 450. At 431 x 144 x 339mm and 12.4kg, the RB-1552 MkII represents an accomplished stereo power amplifier commitment reflecting Rotel's value-focused engineering standards.

Sound and use context

Expect exceptionally clean, tightly controlled amplification reflecting the exceptional 450 damping factor combined with the substantial 120dB signal-to-noise figure, representing accomplished value at this price tier.

Pairing

Rotel's own preamplifier catalogue offers natural, brand-coherent pairings within the same broader catalogue.

Alternatives

Rotel's own RMB-1585 offers a considerably more powerful multichannel alternative within the same broader catalogue.