Nice example of this rack unit. Includes a power supply.
Bring Your Mic Collection To Life With Wide Range Of UA Preamp Tones With The Universal Audio 4-710d Tone Blending Mic Preamp
At the core of the Universal Audio 4-710d are four channels of tone-blending “Twin-Finity” mic preamps. Each channel offers a 100% tube and 100% solid-state signal path, as well as the ability to continuously blend between the two circuits. This gives you tons of textures — from creamy to crunchy — and lets you dial in the perfect amount of tube grit or solid-state sheen.
A LEGENDARY COMPRESSION CIRCUIT
Each of the 4-710d’s four channels features true-bypass 1176-style compression, including specially tuned "fast" and "slow" settings. This enables quick, on-the-fly tweaking for fattening up a vocal, hold a bass guitar in place, or for adding sizzle and texture to synths and horns.
ADD INPUTS AND PROFESSIONAL A/D CONVERSION
With eight analog inputs, the 4-710d is perfect for expanding your studio. Digitized via ultra high-quality 24-bit A/D converters at selectable sample rates up to 192 kHz, the 4-710d easily connects to most interfaces with its dual ADAT optical or AES/EBU DB-25 connectors.
Four TEC Award-winning 710 Twin-Finity™ microphone/line preamps, each featuring:
Dual-path 285-volt Class-A tube and transimpedance solid-state preamps
Phase-aligned tone-blending of the tube and solid-state circuits, creamy to crunchy
Newly designed 1176-style compression circuit per preamp channel
JFET Direct Input with 2.2MΩ ultra Hi-Z impedance w/auto-input override
Large backlit VU meters for flexible metering of input drive, gain level and gain reduction
Balanced send/return inserts (half-normalled)
48V phantom power
75 Hz low cut filter
Monolithic balanced output stage
Eight channels of high-quality 24-bit A/D conversion:
Selectable sample rates up to 192 kHz
Digital output via dual ADAT optical and AES/EBU DB-25 connectors
8-channel soft limiter (switchable for all channels)
Ultra-low jitter clock subsystem
LED metering array with clip/hold indicators
75Ω BNC word clock I/O
Digital outputs anti-pop protection on power-up
Universal voltage internal power supply
Heavy-duty metal construction, two-space rack unit