The award-winning Universal Audio 710 Twin-Finity Mic Preamplifier is a radical UA mic preamp design that combines both the classic retro warmth of tubes with the transient bite of solid-state, all in a 2U, half-rack unit. The 710 was created specifically to add the tonal versatility and sonic inspiration missing from generic audio interface preamps. Variable Tone blending Tone blending is continually variable between 100 percent tube and 100 percent solid-state, offering a practically infinite range of unique preamp tones, plus the ability to easily dial in your signature sound. There are lots of sensibly priced solid-state and tube preamplifiers out there, but the 710 Twin-Finity is the only one that offers the best of both worlds - as well as everything in between - all in one box, and within reach of any serious project studio’s budget. Includes a 19-inch rack kit for mounting one or two units. The Ultimate in Mic Pre Flexibility The key to the 710 Twin-Finity’s sonic flexibility lies in its innovative circuit design, featuring a solid-state transimpedance input amp simultaneously driving separate, phase-aligned tube and solid-state gain stages, which are then summed to a single output. The mix between the 310-volt single-ended class-A triode tube stage and the solid-state transimpedance stage is controlled via the ‘Blend Knob’ labeled ‘infinity’. Blending is continually variable between 100 percent tube and 100 percent solid-state offering a practically infinite range of unique pre-amp tones and the ability to easily dial in your signature sound. Drive for Days Like all our other preamp designs, the 710 features dual gain-stage controls (Gain and Level) which can radically vary the amount of coloration and distortion by allowing you to crank up the input gain like a guitar amp. The VU meter features a unique ‘Drive’ mode allowing you to see how hard you are driving the input stage.