Power amplifiers stereo — Krell Chorus 5200 XD

The Chorus 5200 XD is an accomplished five-channel power amplifier from Krell, using the brand's new iBias technology to ensure output stages operate in pure class A at any output power level, but with efficiency approaching class G and H designs. The Chorus 5200 XD brings Krell's most storied American engineering to a comprehensive, five-channel home-theatre power-amplification format.

Key specs that matter

Input sensitivity is 2,300mV, with input impedance at 100,000 ohms balanced or 50,000 ohms single-ended. Output power is 5x200W into 8 ohms, rising to 5x400W into 4 ohms. Frequency response spans 20Hz to 20,000Hz within plus-or-minus 3dB. Signal-to-noise ratio exceeds 105dB, with total harmonic distortion plus noise under 0.03% at 100% global feedback. Damping factor exceeds 400. At 439 x 147 x 490mm and 25.4kg, the Chorus 5200 XD maintains a comprehensive five-channel power-amplifier chassis reflecting Krell's proprietary iBias engineering.

Sound and use context

Expect pure class A sound quality at any output level reflecting the iBias technology's efficiency-optimised class A operation, with the damping factor exceeding 400 delivering exceptional control across all five channels for demanding home-theatre applications.

Pairing

The five-channel configuration accommodates a full home-theatre surround system from a single chassis, and Krell's own preamplifier and processor catalogue offers natural, brand-coherent pairings.

Alternatives

Krell's own broader Chorus XD series offers related alternatives at different channel counts within the same considered iBias engineering philosophy.