Universal Audio 710 Twin-Finity

Tube/FET Preamp and DI with Tone-blending Knob, Dual Gain Stage Settings, and Discrete JFET DI Input
Universal Audio 710 Twin-Finity image 1
Universal Audio 710 Twin-Finity image 1
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Universal Audio 710 Twin-Finity
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The Best of Two Tonal Worlds in One Great Pre/DI

The Universal Audio 710 Twin-Finity mic preamp/DI gives you the best of tube and solid-state tones — and even lets you blend them together! The 710 houses a Class A FET mic preamp, as well as a Class A tube pre. A Tone Blending knob lets you take the 710 from solid-state "bite" to a classic tube circuit and lets you continuously blend them to nail your signature sound. The Twin-Finity's dual gain stage controls also let you crank up the gain and add tasty vintage-style coloration to your signal. At Sweetwater, we love to paint with sound, and the 710 Twin-Finity has an incredible sonic palette packed into its compact half-rack chassis.

Tube or solid-state: How about both?

The 710 Twin-Finity tube/solid-state tone-blending mic pre/DI is the first preamp ever to offer phase-aligned blending of discrete tube and solid-state circuits. This preamp can be 100% tube, 100% solid-state, or anything in between! Use the input gain to drive the Class A triode tube stage into creamy saturation, then dial in a little transient bite from the solid-state transimpedance circuit, or vice versa — or any combination you can dream up.

Innovative circuit design

The 710's innovative circuit design is the key to its sonic flexibility. A solid-state transimpedance input amp simultaneously drives separate phase-aligned tube and solid-state gain stages that are summed to a single output. You control the mix between the 310V single-ended Class A triode tube stage and solid-state transimpedance stage via the Trans-Tube blend knob, which offers continually variable blending between 100% tube and 100% solid-state, letting you easily dial in your own signature sound from an almost infinite spectrum of unique tones.

Classic UA controls and versatility

In classic UA fashion, the 710 features dual gain stage controls (Gain/Level) which can radically vary the amount of coloration and distortion by allowing you to crank up the input gain like a guitar amp. The VU meter features a unique "Drive" mode that allows you to see how hard you are driving the input stage. The discrete JFET DI input circuit can also easily handle any electric instrument. Guitar and bass players will especially appreciate the 710's ability to bring out the best of both active and passive pickups. The 710 Twin-Finity includes a 19" rack kit for mounting one or two units.

Universal Audio 710 Twin-Finity Tube/FET Mic/Line Preamp/DI Features:

  • Phase-aligned tube/solid-state tone blending
  • Dual gain stages for a variable vintage coloration
  • Discrete JFET DI with 2.2M ohm ultra hi-Z impedance
  • 70dB+ of gain, +48-volt phantom power, pad (15dB), polarity invert, and highpass filter (75Hz)
  • Rear-panel XLR Mic input, XLR Line input, and XLR Line output
  • 19" rackmount kit for 1 or 2 units included
  • Legendary UA build quality and heritage
  • Handcrafted in UA's Scotts Valley, California, labs

Additional Media

Studio Preamp Buying Guide
Free UAD-2!
Sneak Peek!
UA Rebates
New in Stock at Sweetwater

Tech Specs

Preamp Type Hybrid
Number of Channels 1
Frequency Response 20Hz-100kHz
Phantom Power Yes
Analog Inputs 1 x XLR (Mic), 1 x XLR (Line), 1 x 1/4" (Hi-Z)
Analog Outputs 1 x XLR
Rack Spaces Half (2U)
Height 3.5"
Depth 10.25"
Width 8.45"
Weight 5.25 lbs.
Manufacturer Part Number 710TFD

Customer Reviews

Based on 24 reviews
Write your review


Universal Audio Twin-Finity 710 If you don't have them. Get them. You will not be sorry. These things can make anything sound great.

Awesome Affordable Pre!!!

This thing is great. It will breathe new life into your recordings. The tube side has that nice smooth tubey sizzle, and sounds great when pushed into an overdriven sound. The solid state side is clean and pristine, and tends to have deeper lows than the tube side. My magic spot is about 1:00 on the blend knob. It gives me the fullness of the solid state side and just the right amount of tube goodness for my taste. I record vocals and acoustic with an AT4047, and every other mic I put through this thing sounds great too. I also use it for line in guitar and bass. It excels at every task I throw at it. Get one, you won't be disappointed.
Music background: Hobbyist

Mature Vocal Sound

This is one of my fav pre because the maturity sound that make the vocal sound.
Music background: Producer, Mix Eng

Superb quality and unique flexibility

To use my Beyerdynamic M160 mic for recording a flugelhorn, I needed a preamp with a great deal of gain. I had tried a Studio Projects VTB-1 which gave me the gain and a mix of tube and solid state, but at the expense of added noise. The new UA 710 gives me the warmest and cleanest sound on the flugelhorn I have ever heard from any recording setup, including an old RCA ribbon mic through an Avalon pre. I am just beginning to experiment with the combination of sounds by dialing in varying amounts of tube warmth, but just from my initial success so far, I am delighted with this unit.
Music background: Pro jazz musician and composer

Night and day

I recieved my 710 from Sweetwater yesterday, and tried it last night. After reading many positive reviews of this thing, all I can say is WOW - no noise, clarity to the extremes, and the only words I can use to describe it is - the 710 brought a "silky smooth" tone that I had not heard from other preamps, and I've tried a bunch - I'm always going for "that sound" - it's a neverending obsession! Great price, great value, great tone, and best of all, it brought out wonders in not only the vocals, but also the guitar and bass tracks. I would recommend this little powerhouse to anyone - no studio should be without one!!! Kudos to Reuben at Sweetwater too for the great service! Thanks!
Music background: Pro Musician, Recording Engineer, Vocalist, and Keyboardist of more than 30 years.

Sweetwater Advice

Bart Good

The Universal Audio 710 Twin-Finity is one great-sounding preamp! I recently did a shootout with it against several other high-end pres, and it stood out as being the most versatile in this price range. If you're looking for your first high-end preamp (or just want to add another great, multifaceted pre to your sonic arsenal), then you should definitely consider the UA 710. To Twin-Finity and beyond!
See also: Universal Audio, Universal Audio Preamps