Dual channel '73 style British microphone preamp. If there’s one style of preamp that professional engineers would unanimously agree has defined the tone of pop/rock records for decades, it would most definitely be the venerable '73-style of mic pre. '73-style preamps have been massively used in recording and live applications for many years and are still considered to be the “Holy Grail” of preamp choices today. The Warm Audio “WA73 Family” consists of single and dual channel '73-style preamps, that each pay careful homage to British audio history. The WA73 is a “Desert Island” boutique preamp, but it can also be classified as a studio and live work-horse. Classic '73-style preamps are known for being versatile tools that work with all kinds of microphones from Condenser, to Dynamic, to Ribbon. The WA73 equally shines on all types of microphones and sources including; vocals, acoustic/electric guitars, bass, drums, percussion, orchestras, keyboards, and even as a tone shaping tool to run partial or complete mixes through. UK made Carnhill transformers. Hand wired, hand assembled. 80 Db of gain. Tone button. Polarity switch. 48 V phantom power. 4 position inductor based hipass filter - 50, 80, 160, 300 Hz. XLR mic input. Line level TRS input. TS send/receive insert jack. XLR and TRS line level outputs. Direct in, instrument input. Output control. LED level indication. Ground lift switch.