710 Twin-Finity™ Tone-Blending Mic Preamplifier

710 Twin-Finity Tone-Blending Mic Preamplifier

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(77 reviews)
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Get tube and solid-state sonics and everything in-between with this unique mic pre/DI.

The award-winning 710 Twin-Finity™ is a radical UA mic preamp design that combines both the classic retro warmth of tubes with the transient bite of solid-state, all in a 2U, half-rack unit. The 710 was created specifically to add the tonal versatility and sonic inspiration missing from generic audio interface preamps.

Tone blending is continually variable between 100% tube and 100% solid-state, offering a practically infinite range of unique preamp tones, plus the ability to easily dial-in your own signature sound. There are lots of sensibly priced solid-state and tube preamplifiers out there, but the 710 Twin-Finity is the only one that offers the best of both worlds — as well as everything in-between — all in one box, and within reach of any serious project studio’s budget. Includes a 19" rack-kit for mounting one or two units.

Now You Can:

Harness the distinct sonic properties of tubes and solid-state in one unique preamp/DI

Blend between tube and solid-state sounds for myriad textures and tones

Unlock the potential of your mic locker with a powerfully versatile preamp

Easily track guitar, bass, or keyboards with the front panel 1/4“ Hi-Z instrument input

The Ultimate in Mic Pre Flexibility

The Ultimate in Mic Pre Flexibility

The key to the 710 Twin-Finity’s sonic flexibility lies in its innovative circuit design, featuring a solid-state transimpedance input amp simultaneously driving separate, phase-aligned tube and solid-state gain stages, which are then summed to a single output. The mix between the 310 volt single-ended class-A triode tube stage and solid-state transimpedance stage is controlled via the "Blend Knob" labeled "∞". Blending is continually variable between 100% tube and 100% solid-state offering a practically infinite range of unique pre-amp tones and the ability to easily dial-in your own signature sound.

Drive for Days

Like all our other preamp designs, 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 allowing you to see how hard you are driving the input stage.

Key Features

Twin-Finity™ Tone-Blending Mic/Line Preamp & Hi-Z Instrument DI
Dual-Path 310 volt Class-A Tube and Transimpedance Solid State Preamp
Phase-Aligned "Tone-Blending" of Tube and Solid State
Dual Gain Stages: Wire with Gain to Creamy to Crunchy
Discrete JFET DI with 2.2M ohm Ultra Hi-Z impedance
Monolithic Balanced Output Stage
70dB+ of gain, +48V Phantom, Pad(-15dB), Phase Invert, and Low Cut Filter(75Hz)
Output and "Drive" backlit VU metering
Portable, Rack-Mountable design for Studio, Desktop or Stage
19” Rack Kit Included
Front Panel Hi-Z Input (switched from Mic/Line automatically via Jack Detect)
Rear Panel XLR Mic Input, XLR Line Input and XLR Line Output
Universal Internal Power Supply
Heavy-Duty Metal Construction


Microphone (Female XLR)
Balanced Line (Female XLR)
Unbalanced Instrument (1/4" jack) (D.I.)
Balanced Line (Male XLR)
Tube Complement
High Pass Filter
Maximum Power Consumption
160mA @120VAC, 20W
Power Requirements
8.45W x 3.5H x 10.25D
5.25 lb
Mic Input Impedance
2K ohms
Line Input Impedance
10K ohms
Hi-Z Input Impedance
2.2M ohms
Internal Output Impedance
600 ohms
Gain Range for Unit
-Infinity to 70dBu
Mic Range Gain Pot
10 ~ 60 dBu
Line Range Gain Pot
-10 ~ 40 dBu
Hi-Z Range Gain Pot
-10 ~ 40 dBu
Frequency Response
Mic Frequency Response
20Hz to 100kHz +/- 0.2 dBu
Line Frequency Response
20Hz to 100kHz +/- 0.2 dBu
Hi-Z Frequency Response
20Hz to 100kHz +/- 0.2 dBu
Min THD+Noise @ +4dBU
0.1% tube 0.005% solid-state

Customer Reviews

710 Twin-Finity™


(77 reviews)

C. Laster

November 5, 2016

Overall 8.5 out of 10

Universal Audio nailed it with this one. Its smooth and silky. The only problem I have is I cant figure out how to get a good strong signal into my DAW. I have the gain and level knobs at 12 o'clock and I'm getting a good signal into my compressor and DAW but it always seems the signal is in the background. I adjust the knob based on the meters.So its not really a gain staging issue its more of the presence in the mix. If anyone has any suggestions let me know. Im not sure if its something wrong with the unit or if its me.I have several other preamps and I don't have this problem.

j. hart

November 1, 2016



J. Valentovich

September 22, 2016

Sounds awesome

What can I say. This is a UAD Pre and it does sound very good. It warms up everything and cleans the sound up. Running this through your tracks just sweetens them up. Must buy.

UAD User

September 11, 2016

Vital to any studio

There isn't a single source that doesn't sound better running through this preamp. Dynamics, condensers, ribbons, on vocals, cabs, pianos, guitars and anything else you can think of. I'm so satisfied with it I just ordered a second one for recording in stereo. Excellent, excellent product.


June 1, 2016

I Love

J'aime beaucoup l'UAD 710 sur les voix !!! Testé avec un Blue DragonFly le rendu est magnifique !!!
La palette de couleur sonore est intéressante en Full Transistor pour ma voix, j'ai également essayé en 100% Lampe le résultat est différent, plus brillant on pourrait préférer le Full transistor à la place pour des voix.
Acheté à un ami qui ne voulait pas le garder, je regrette pas mon achat, je pense même en acheter un deuxième.
Mon premier UAD, j'adore !!!
Merci UAD

D. Akindayomi

May 27, 2016

Awesome Analog

This preamp has brought a new sweetness and warmth to anything i track through it ... A great preamp you won't regret and for a great price .. Thumbs up .


j. kim

April 6, 2016

Mr.jung su

Good warm sound tube feels good sound and punch

I love 710

l. lee

October 14, 2015

UA 710 twin finity

Overall, Good warm sound
tube feels good sound(especially Acoustic guitar)
and punch

B. Rangno

September 23, 2015

Great unit with lots of versitility

As a clean gain preamp it does a phenomenal job for the price. Having the added option of a tube drive circuit as well makes it super well versed for a variety of applications.

T. Moons

March 18, 2015

710 ...blending like a dj mix ...

It's a fantastic piece of gear. I couldn't believe the difference is so big compared to the first preamp i had . I'm really happy with this hope i can save for the others from UAD to , it really has its own character ! Love it !!

B. Chiaravalle

March 18, 2015

Really useful!

I noticed a big difference the first session I used it on a lead vocal I was recording. Adds a nice character immediately. I've used on electric and acoustic guitars as well and sounds great. Also works great on my Hofner bass direct.

J. Dunlop

March 8, 2015


Very attractive design. Controls are simple and straightforward. Owner's Guide is especially useful. They have gone to the trouble to assume you know nothing and they lay it out step by step. You don't see this much anymore. It helped me greatly. Now I do more listening and less fiddling. Strongly recommended.

A. Libertucci

March 1, 2015

Finally found what i was looking for

I have been buying and selling preamps for a while and decided to try the UAD 710. All i can say is, i am done searching. Straight to my interface and into my DAW with no EQ it sounds amazing. For xtra clean, dial to the left, add tube color to the right . Simple. Love this thing. Keep it up UAD!

R. Lima

January 30, 2015

To everything you want.

I've bought one 710 Twin and for sure I'll get another to make it Twis. For acoustic guitar, for drums, key and vocal. Everything you need it sounds good.
Ricardo Lima Brazil

L. Fernández

January 22, 2015

Genial el 710 twin

Llevo un tiempo con el y me parece muy versatil, le da al sonido un fuerza que si todas las pistas han pasado por el 710 notaras que todo suena con un color muy distinto al que estamos acostumbrados con los previos de las interfaces, la conparo con los previos d-pre de yamaha y los de la ediro fa 101, y se nota mucho la diferencia, el cambio entre estado solido y valvula es muy sutil, pero lo suficiente, la configuracion que mas me gusta es la intermedia, al igual que dice aguilera la gabancia en mi caso del 3 al 4 es muy brusco el cambio y eso hace que pierdas un poco el rango de posibilidades pero en general es un buen cacharro calidad precio de un buen mivel para estudios de proyecto y hone studio,
Estoy muy satisfecho con la compra.

D. Shand

December 20, 2014

Twinand Twin

I use the Twin finite with my apollo twin and it sounds great best micpre for the price!

I. Shabo

August 26, 2014

Probably The Best PreAmp In The World

Crazy amplifier has a lamp and Trnizstor choice. Sound and feel more thean great

V. Smith

June 30, 2014


I love the flexibility of this piece! Having solid state and tube options at my disposal makes life a lot easier getting these tones together!

H. Gäbler

March 29, 2014

Awesome Gear!

Another level starts with Hardware of this kind. Thank you for this stunning peace of gear in my studio. Greetings from Hamburg,
Hanjo Gäbler

D. Morgan

October 25, 2013

Twin Finity brought my mic back to life..

If you are new to out board gear, and unsure of where to start, this is the best starting point!!! Price is a more than reasonable!!! And will give pretty much any mic more character..

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