Power amplifiers stereo — YBA Signature Stereo Power Amplifier

The Signature Stereo Power Amplifier is the flagship stereo power amplifier within YBA's catalogue, sitting above the PASSION A650 with matching per-channel power output but considerably greater weight. The Signature Stereo Power Amplifier brings YBA's most accomplished current engineering to a two-channel power amplification format.

Key specs that matter

Output power is 2 x 200W into 8 ohms, doubling cleanly to 2 x 400W into 4 ohms - matching the PASSION A650's per-channel figures. Frequency response spans 20Hz to 20,000Hz within plus-or-minus 3dB. Signal-to-noise ratio is 95dB, with total harmonic distortion plus noise at 0.1% with full global feedback. At 430 x 390 x 170mm and a substantial 42.5kg, the Signature Stereo Power Amplifier's considerably greater weight than the PASSION A650's 25kg reflects more serious internal transformer and power-supply componentry.

Sound and use context

Expect substantial power delivery matching the PASSION A650's electrical performance, with the considerably greater 42.5kg mass suggesting more serious internal engineering consistent with the Signature model's flagship-tier positioning.

Pairing

The clean power doubling into 4 ohms suits a wide range of loudspeaker impedances, and YBA's own Signature CD player shares matching flagship-tier engineering philosophy.

Alternatives

YBA's own PASSION A650 offers a more accessible alternative sharing similar electrical output at considerably lower weight.