Get classic tube and solid-state tones with 1176-style compression and professional A/D conversion.

Track through meticulously designed UA tube preamp circuitry
Blend tube and solid-state textures for tons of flexibility
Harness classic 1176-style compression on each mic channel
Add 8 inputs to any Apollo interface via ADAT optical connection

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Preamplifiers

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 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
Polarity switch
Monolithic balanced output stage

Get Classic Tube and Solid-State Tones with 1176-style Compression and Professional A/D Conversion

By merging the best of UA’s classic analog design with smart modern features and workflow enhancements, the 4-710d is the most flexible microphone preamp in the UA lineup. Featuring four high-end mic/line preamps with a unique tube/solid-state tone blending circuit, as well as classic 1176-style compression on each mic channel, the 4-710d also offers tons of digital I/O to expand your setup.

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Bring your Mic Collection to Life with a Wide Range of UA Preamp Tones

At the core of the 4-710d are four channels of tone-blending “Twin-Finity” mic preamps. Each channel offers 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.

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Fine-tune with Legendary Compression

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

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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.