Yamaha AX-397B

Yamaha AX-397B ... harmonics can affect sound reproduction quality. Super Audio CD and DVD-Audio other new formats will be able to output sound over this range, so the AX-397 is fully compatible with products using these formats.

Level variations due to high amp impedance tend to reduce an amplifier's damping factor, and frequency variations cause it to fluctuate. This circuit cancels the effect of these variations, maintaining a high, stable damping factor, for superior articulation of all sounds and better frequency response.

Yamaha amplifiers/receivers are capable of delivering large amounts of reserve power for accurate reproduction of high energy peaks. This emphasizes the music's dynamic qualities and provides a sharper sound image.