Universal Audio 4-710d 4 Channel Tone-Blending Mic Preamp

Universal Audio 4-710d merges the best of classic analog with smart modern features to create the most flexible high-end microphone preamp. Blend between tube or solid-state mic pre paths and utilise the famous 1176-style compression circuits with UA 4-710d.

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Universal Audio 4-710d 4 Channel Tone-Blending Mic Preamp

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

Universal Audio 4-710d features four high-end mic/line preamps with a unique tube/solid-state tone blending circuit. At the same time, it has a classic 1176-style compression on each mic channel. Also, 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. Additionally, each channel offers 100% tube and 100% solid-state signal path. 4-710d also has the ability to continuously blend between the two circuits. Consequently, 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 within 4-710d

In fact, 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. Specifically 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.

4710d Key Features:

  • Ability to blend between the tube or solid-state mic pre paths
  • Famous 1176-style compression circuit
  • 8 Analog inputs digitized via 24-bit A/D converters up to 192kHz


  • 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


Analog-to-Digital Conversion

  • 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 work clock I/O
  • Digital outputs anti-pop protection on power-up



  • Universal voltage internal power supply
  • Heavy-duty metal construction, two-space rack unit

Preamp Type: Hybrid
Number of Channels: 4
Phantom Power: Yes
Compressor: Yes
Analog Inputs: 4 x XLR (Mic), 4 x 1/4″ (Line), 4 x 1/4″ (Hi-Z), 4 x 1/4″ (Line – CH 5-8)
Analog Outputs: 4 x XLR
Digital Outputs: 1 x DB-25 (AES/EBU), 2 x Optical (ADAT)
Clock I/O: 2 x Word Clock
Frequency Response: 20Hz-20kHz
Rack Spaces: 2U
Height: 9cm
Depth: 31cm
Width: 48cm
Weight: 5.2kg
Manufacturer Part Number: 4710D

For more information, please visit the manufacturer's website.