Universal Audio 4 710D Four Channel Microphone Preamp
$1,999.00$2,499.00
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The Universal Audio 4-710D is a boutique-grade mic preamp that refuses to pick a side in the age-old tube-vs-solid-state debate, so it picked both. Each of its four channels lets you blend continuously between a lush Class-A tube circuit and a punchy solid-state path, dialing in exactly the texture your source demands. Add onboard 1176-style compression, eight channels of high-quality A/D conversion, and flexible digital outputs, and what you have is a preamp that does all of the heavy lifting.
Tube, Solid-State, or Both — Why Not?
Most engineers argue about warm tube tone versus clean solid-state punch like it's a sport. The 4-710D politely sidesteps the whole argument by offering both in a single signal path. Its Twin-Finity circuit runs a 285-volt Class-A tube stage and a trans-impedance solid-state stage simultaneously, letting you blend between them in real time with phase-aligned precision. Creamy, crunchy, or somewhere perfectly in between — you call the shots.
Continuous Tone Blending: A single knob sweeps between 100% tube and 100% solid-state, giving you an essentially infinite palette of tonal texture without reaching for an extra piece of gear.
285-Volt Class-A Tube Circuit: Running at higher-than-typical voltage, the tube stage delivers that signature warmth and harmonic richness that makes acoustic instruments and vocals sound like they belong in a room together.
Trans-Impedance Solid-State Path: The solid-state circuit delivers clarity and punch with low noise, making it ideal for sources that need definition and transient snap rather than softness.
Compression That Actually Behaves Itself
Slapping compression on a preamp channel might sound like a recipe for a one-size-fits-none disaster, but UA pulled it off. The 4-710D features a newly designed 1176-style compression circuit on each channel, offering true-bypass operation and selectable fast and slow attack/release settings. It's the kind of glue that tightens up a vocal or smacks a snare in all the right ways — without sounding like you sat on the compressor by accident.
1176-Style Compression Per Channel: Each of the four preamp channels gets its own independently-switchable compressor, so you can compress only what needs it and leave the rest completely untouched.
Fast and Slow Attack/Release Modes: Specially tuned settings let you go from smooth, transparent leveling to aggressive, punchy limiting depending on the source — vocals, drums, guitars, and everything in between.
True Bypass Operation: When you don't want any compression coloring your signal, bypass it completely and the circuit steps entirely out of the way, keeping your signal clean.
Eight Channels of Conversion That Won't Let You Down
The 4-710D isn't just a preamp — it's a front-end converter combo that pipes eight channels of pristine audio straight into your DAW. Four channels come from the onboard mic preamps, and four additional line inputs round out the total. All eight run through ultra-high-quality 24-bit A/D converters at sample rates up to 192 kHz, with digital outputs flexible enough to connect to just about any popular audio interface out there.
Eight-Channel 24-Bit A/D Conversion: High-quality analog-to-digital converters capture every nuance of your signal with accuracy, keeping detail intact all the way through to your recording session.
Selectable Sample Rates Up to 192 kHz: Whether you're working at 44.1 kHz for a quick podcast or pushing 192 kHz for high-resolution music production, the 4-710D handles it without breaking a sweat.
Dual ADAT and AES/EBU DB-25 Outputs: Flexible digital connectivity means the 4-710D slots into virtually any studio setup without requiring you to rewire your whole signal chain.
A Four-Channel Front End That Earns Its Rack Space
The Universal Audio 4-710D is exactly the kind of gear that quietly becomes the most important thing in your rack. It captures performances with the kind of tonal richness and flexibility that usually requires several boxes, a lot of patching, and a mild headache.
Whether you're tracking a full band or polishing a solo vocalist, the 4-710D offers four channels of world-class tone with the compression, conversion, and routing to match. It's not the flashiest box on the shelf — but once you hear what it does to a vocal, you'll stop looking at the other shelves entirely.
Universal Audio 4-710D Features:
Four TEC Award-winning Twin-Finity mic/line preamps
Dual 285-volt Class-A tube and solid-state trans-impedance circuits per channel
Newly designed 1176-style compression circuit per preamp channel
True-bypass compression with fast and slow attack/release settings
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
Eight-channel soft limiter switchable across all channels
Send and return jacks per channel for external processing
Phase-aligned, continuously variable tone blending from tube to solid-state
Heavy-duty metal construction, two-space rack unit
One year warranty including parts and labor
Frequently Asked Questions
The 4-710D runs a tube circuit and solid-state circuit simultaneously on each channel, letting you blend between them continuously rather than switching between two separate modes. That level of real-time tonal flexibility in a four-channel unit is genuinely uncommon at any price point.
Absolutely, it connects via ADAT or AES/EBU to most popular audio interfaces, making it a strong upgrade for home studios looking to add boutique-quality preamps and conversion. Its four channels handle everything from vocals and acoustic guitar to drums and synths.
Yes, each of the four channels includes a dedicated 1176-style compressor circuit with true bypass and selectable fast/slow modes. You can apply compression to individual channels independently without affecting the rest.
Yes, the 4-710D accepts four additional line-level inputs beyond its four mic preamp channels, totaling eight channels of A/D conversion. This makes it useful as an eight-channel converter even when you're not using all the preamp inputs.
The 4-710D supports selectable sample rates up to 192 kHz across all eight channels of conversion. It handles the full range of standard professional rates, so it's compatible with virtually any modern recording workflow.
