The Universal Audio 710 Twin-Finity is a single-channel microphone preamp that offers a unique dual-topology design, combining a tube gain stage and a solid-state gain stage with a continuously variable blend control that allows engineers to dial in any ratio of warmth to clarity for each recording situation. The tube side uses a genuine 12AX7 vacuum tube running at full voltage for authentic tube saturation and harmonic richness, while the solid-state side provides clean, transparent amplification with fast transient response. The blend knob between these two topologies is the 710's defining feature, enabling engineers to find the perfect tonal sweet spot for each vocalist or instrument without committing to a single preamp character. The UA-designed output transformer adds subtle harmonic enhancement and the robust, punchy sound that has defined Universal Audio products since the company was founded by Bill Putnam Sr. in the 1950s. Front-panel controls include gain, output level, low-cut filter, polarity inversion, and phantom power, with a comprehensive VU meter for visual monitoring. The Hi-Z instrument input accommodates direct guitar and bass recording. Build quality is exceptional with a heavy-gauge steel chassis and premium components throughout. The 710 Twin-Finity is ideal for project studios and professional engineers who want the flexibility to move between tube warmth and solid-state clarity without changing hardware. The single-channel limitation means tracking multiple sources simultaneously requires additional preamps, and the tube will eventually need replacement after extended use.

Preamps

Single-channel preamp with unique dual tube/solid-state topology and blend control, plus UA-designed output transformer for classic Universal Audio character.