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Universal Audio 4-710d 4-channel Microphone Preamp and Compressor

4-channel Tube/FET Preamp and DI with Tone Blending Knob, and 8-channel 24-bit/192kHz A/D Conversion
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Item ID: 4710D
Universal Audio 4-710d 4-channel Microphone Preamp and Compressor
Price:$1,999 and 00 cents
Special Financing - Ends Aug 2, 2026. $56/month with 36 month financing*

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Universal Audio 4-710d 4-channel Microphone Preamp and Compressor
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This article was Written By

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The Centerpiece of Your Studio!

The Universal Audio 4-710d combines four 710 Twin-Finity mic pres into a single unit with A/D conversion and costs less than three original 710s combined! But that's not all. The preamps take a Class A FET preamp circuit and a completely separate Class A triode tube preamp and give you the ability to blend the two signals together to taste. While they were at it, Universal Audio also added a simple 1176-based compression section to each channel. Now it's even easier and more cost effective than ever to add a set of these fantastic hybrid preamps to your studio.

Four 710 Twin-Finity mic preamps with compression

Most sound engineers know about the Universal Audio 710 Twin-Finity mic preamp — an award-winning design that's standard equipment in top studios and live rigs worldwide. The UA 4-710d features four of these bad boys and comes in well under the price of four separate 710 units. Each channel also offers UA's newly designed 1176-style compression circuit. Not only do you get top-notch-sounding preamps, but you can dial in the exact amount of compression you need to make your sound source punch through the mix.

Phase-aligned "tone blending" of tube and solid-state

Each of the four mic preamp channels on the 4-710d allows for choosing between a 100% solid-state and 100% tube signal path, or any mix of the two that you desire, using a continuously variable control. Don't get stuck having to switch preamps every time you want a different sound, or worse yet, get stuck with only one sound to work with. Go from pristine to euphonic with Universal Audio's 4-710d blendable solid-state and tube signal paths.

Onboard A/D conversion with digital outputs

As if the Universal Audio 4-710d doesn't do enough for your studio, the eight analog inputs are also digitized via 24-bit A/D converters up to 192kHz. Digital output is available via dual ADAT "lightpipe" or AES/EBU DB-25 connectors, giving you effortless compatibility with most popular audio interfaces. What's more, you can even input up to four other analog mic preamps through the 4-710d to access its superior A/D conversion.

Universal Audio 4-710d 4-channel Microphone Preamplifier Features:

  • Phase-aligned "tone blending" of tube and solid-state
  • Newly designed 1176-style compression/soft-limiting circuit on each mic channel
  • Monolithic balanced output stage
  • Dual gain stages
  • Balanced send/return inserts
  • Discrete JFET DI with 2.2M ohm ultra-hi-Z impedance
  • 70dB+ of gain, +48-volt phantom power, pad (15dB), phase invert, and low-cut filter (75Hz)
  • Front-panel hi-Z input (switched from mic/line)
  • Rear-panel XLR mic input, XLR line input, and XLR line output
  • Digital output via dual ADAT optical or AES/EBU (DB-25)
  • 8 channels of high-quality 24-bit/192kHz A/D conversion

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Tech Specs

  • 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: 3.5"
  • Depth: 12"
  • Width: 19"
  • Weight: 11.5 lbs.
  • Manufacturer Part Number: 4710D

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Reviews

Great Beginning to Expansion
Operated with a 18i20 for a long time, and needed to expand. This gave me 4 more preamps, and the 4 extra 1/4" channels I can also ADAT to my 18i20 allowed me to expand all the way to 16 pre-amped channels. This one device allowed me to properly expand my 8-pre 18i20 into its full potential as a 16-channel I/O.

The gain staging on the 4-710 gives phenomenal tone control, bolstered beautifully by the tone blending knob. I'm a sucker for that tube coloration, but it is nice to pull back on it for things like drum overheads or acoustic guitar mics. I don't use the compressor often, but it comes in handy for smoothing out vocals and keeping them from overdriving (beyond what I want). You can get such great analog tone, and the analog limiter right before the digital conversion helps prevent that nasty digital clipping when I'm pushing a tube-amped channel hard.

Right next to my matched pair of AKG 414s, this is the single best purchase I've ever made. I've upgraded my I/O, my mics, gotten some inserts here and there, but this has always remained. 10/10, would buy again.
UA Mic Pre/Interface
I've been in the recording business since 1977, worked with some of the best British Mic Pres. I was building a recording rig for an old friend who spent 25 years as an LA Studio guitarist. He wanted the best rig for his guitar recording to Protools. This was hands down the best sounding unit for the job. The clarity, warmness, smoothness of the compression and transients were all perfect. Every studio needs one of these in plug and play mode.
Also I've purchased everything from complete studio packages to home studio rigs helping design and setting up over the years and I use no other sources, but Sweetwater. Paul Allen has been my sales rep since the early 2000's and Sweetwater's real customer service speak for itself. It's one of the greatest companies on the planet and one of the few companies left that really knows and practices real customer service. It's in their blood!
Music background: Recording Engineer/Producer
So good!
This was the first real piece of gear I bought for my studio and remains one of my favorite to this day. The preamps are killer, the compressors are great, especially for tracking vocals and bass, and the four line inputs with ADAT out allow tons of flexibility for routing in my studio.
Music background: Sound Engineer
Awesome Pre Great service
Not only is this thing a monster addition for the studio as far as quality but the adat really makes life easy when expanding my audio interface. Went from 8 channels to 12 channels with a single cable and I don't have to worry about purchasing, routing, and troubleshooting noise or electrical issues. It just works and it works good. I run it at 96khz and it hasn't so much as hiccupped.

In addition to a quality piece of gear my sweetwater experience was fantastic. The expertise and depth/breadth of knowledge from my sales engineer was something I don't necessarily get with other shops.

I've been doing production from pre to post professionally for 11 years and I have yet to be disappointed with the quality of service I get from Sweetwater. If you're new to sweetwater and are looking for a Sales engineer to work with I highly suggest Kurt Kripe. Thanks Kurt!
Music background: sound engineer
4-710D
I have a small studio built around UA Apollo8, Cubase and Console1. Other than vocals and acoustic guitars, I am DI everything.

Adding 4-710D allowed me to double input capacity.
Sound quality is great A/D conversion is superb. Integrates seamlessly with Apollo8. Love it.
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What Do Our In-house Gear Experts Think?
Drew Foster
My 4-710D has been a critical piece of gear in my studio. While I use it on all kinds of sources, it's killer for punching up drums and smoothing out acoustic instruments. The way it lets me blend between tube and solid-state paths is a huge time saver when I need to shape tone on the fly. What's more, having four 1176 compressors takes the strain off of my converters (no more peaky transients sneaking through) while delivering the classic UA character I love.