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.
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.
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.
Now you can:
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Track through meticulously designed UA tube preamp circuitry
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Blend tube and solid-state textures for tons of flexibility
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Harness classic 1176-style compression on each mic channel
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Add 8 inputs to any Apollo interface via ADAT optical connection
Features
Preamplifiers
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Four TEC Award-winning 710 Twin-Finity™ microphone/line preamps, each featuring:
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Dual-path 285-volt Class-A tube and transimpedance solid-state preamps
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Phase-aligned tone-blending of tube and solid state circuits, creamy to crunchy
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Newly designed 1176-style compression circuit per preamp channel
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JFET Direct Input with 2.2MΩ ultra Hi-Z impedance w/auto input override
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Large backlit VU meters for flexible metering of input drive, gain level, and gain reduction
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Balanced send/return inserts (half-normalled)
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48V phantom power
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75 Hz low cut filter
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Polarity switch
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Monolithic balanced output stage
Analog-to-Digital Conversion
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Eight channels of high quality 24-bit A/D conversion:
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Selectable sample rates up to 192 kHz
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Digital output via dual ADAT optical and AES/EBU DB-25 connectors
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8-channel soft limiter (switchable for all channels)
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Ultra-low jitter clock subsystem
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LED metering array with clip/hold indicators
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75Ω BNC work clock I/O
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Digital outputs anti-pop protection on power-up
Other
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Universal voltage internal power supply
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Heavy-duty metal construction, two-space rack unit
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One year warranty including parts and labor