"The Avalon VT-747SP Stereo Compresser. Vacuum-tube warmth and presence with solid-state flexibility. The Avalon VT-747SP combines a stereo tube-discrete Class A opto-compressor with musical 6-band program EQ, L-R output level and gain reduction metering, and internal regulated power supplies in 2 rackspaces. Choose between tube tone and the classic Class A discrete transistor sound. Ideal for high-performance DAW input signal conditioning, stereo bus compression-EQ, stereo keyboards, and analog mastering applications. The main features of the Avalon VT-747SP include: Stereo Class A 6-band discrete passive program EQ TSP twin signal path, vacuum tube bypass Low noise -92dB Fully balanced Class A input and DC coupled outputs Stereo dynamic 60dB high resolution output meters High-quality analog VU meter for gain reduction High headroom +36dB input before overload Spectral side-chain monitor for pre listen EQ pre-post selection for opto-compressor Sealed silver relays for all signal routing Internal discrete regulated power supplies Military spec vacuum tubes for long life and low noise"