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Customer Reviews 62 Reviews

4.74 out of 5 stars

by j. kim (4/6/2016):

Good warm sound tube feels good sound and punch I love 710 Read more

48 Reviews
12 Reviews
2 Reviews
0 Reviews
0 Reviews
Overview

710 Twin-Finity™ Tone-Blending Mic Preamplifier & DI Box

100% Tube to 100% Solid State — a Variable Tone Blending Mic Preamp & DI

The award-winning 710 Twin-Finity™ is a radically new 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 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.

  • 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 sounds
  • Dual Gain Stages: Wire with Gain to Creamy to Crunchy
  • Discrete JFET DI with 2.2M ohm Ultra Hi-Z impedance
  • View All Features

The key to its 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.

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.

Versatility makes the 710 the perfect preamp partner for any mic collection. Plus, the discrete JFET DI input circuit can also easily handle any electric instrument. Guitar and bass players will especially appreciate the 710s 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.


Reviews

Reviews

1 of 3
  • Daniel Ho

    (Tia Carrere)

    “UA’s 710 Twin-Finity offers a vast palette of sonic options. No more compromising when choosing between a solid state or tube sound.”

    Al Schmitt

    "[The 710 Twin-Finity is] affordable, and it's really, really good. I would recommend it to anybody, it's that good.”

    Matt Boudreau

    (Cannons and Clouds)

    "The 710TF has an enormous amount of gain ... like 70 dB of gain available ... so it's going to see a lot of use."

    Paul Vnuk, Jr.

    (Recording Magazine)

    "When pushed slightly into breaking up at a 50/50 mix, this thing [710] sounded awesome on guitar amp ..."

    Paul Vnuk, Jr.

    (Recording Magazine)

    "If you want a unique tool ripe with sonic possibilities, and a classic sound, then this [710] is your choice."

  • Paul Vnuk, Jr.

    (Recording Magazine)

    "710's line input allows some "sick" distortion effects & tube saturation during mixdown of pre-recorded tracks."

    Paul Vnuk, Jr.

    (Recording Magazine)

    "The 710 breaks up well, and even the solid-state distortion can be fun and useful."

    Paul Vnuk, Jr.

    (Recording Magazine)

    "You can even get close to the direct guitar "Black Dog" tone quite effortlessly with the 710."

    Kevin Becka

    (Mix Magazine)

    "The 710 was brilliant on kick, snare and vocals, giving a wide palette of tonal options ... It's an expert tone-blender..."

    David Franz

    (Electronic Musician)

    "This [710 Twin-Finity] just may be the most sonically versatile preamp I've ever used."

  • David Franz

    (Electronic Musician)

    "The 710 is more than just two preamps in one ... you can get just about any preamp sound you want from it."

    Craig Schumacher

    (TapeOp)

    "The 710 quickly presented itself as a very versatile and flexible mic preamp ... We highly recommend it."

    Music Tech

    (Music Tech UK)

    "The 710 is a great-sounding preamp and an unusually sweet DI box"

    Paul White

    (Sound on Sound)

    "The [710TF] delivers good results with a range of mic's and vocal styles... doubling as an extremely classy instrument DI."

    Future Publishing

    (MusicRadar.com)

    "We challenge anyone not to find a use for a 710TF in their studio."

User Ratings

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Average Rating (62 Reviews)
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    Mr.jung su
    by j. kim(Wednesday 6 April, 2016)

    Good warm sound tube feels good sound and punch I love 710 Read More

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    UA710TF
    by S. JK(Thursday 14 January, 2016)

    This preamp has improved EVERYTHING I have put through it sound- wise. My untreated basement studio and solid performances aside, this preamp has brought character to my recordings. Finding that sweet spot on the 'blend' knob for a source still makes me smile.. it's a beautiful thing. Read More

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    Great versatility!
    by . (Wednesday 23 December, 2015)

    Great sound and versatility. I love the tube sound on acoustic guitars, vocals and any acoustic instrument. I also love it when I track the line for an electric guitar to use with amp emulation: it adds that warmth that can't be achieved with the digital saturation/drive of the emulation.… Read More

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    BIG and Warm
    by C. Stylianides(Sunday 13 December, 2015)

    Tried it on Vocals, Electric bass and El. Guitar Cabinet and Acoustic Guitar and it sounds awesome! It can go from very clean sound to a bit dirty, from fat and boomy to more bright and sweet. I own this for a very short time but I am sure will help me bring my productions to a whole new level! Read More

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    Excelente Preamp
    by C. Altuzarra Cabrera(Monday 16 November, 2015)

    el 710 es un excelente preamp con gran versatilidad, los tonos que se pueden conseguir son infinitos gracias a que podemos hacer mezclas de transistor o tubo. Funciona muy bien como caja directa para grabar bajos y guitarras. Read More


Artists
  • Matt Boudreau

    I know — we interviewed Matt Boudreau back in March about his racks of UA outboard gear and four UAD-1 cards... Read More

    Al Schmitt

    Al Schmitt is one of those New Yorkers who has lived in LA for over 30 years and yet he’s still a New Yorker. It’s not just the accent but also the lively energy. Read More

    Chris Manning

    Chris Manning, an up-and-coming engineer/producer, took the new UA 710 Twin-Finity Mic Pre and DI out for a little test drive. Read More


Features & Specs

710 Twin-Finity™ Tone Blending Microphone Preamplifier & DI Box

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
Technical Specifications:

 

Inputs
Microphone (Female XLR)
Balanced Line (Female XLR)
Unbalanced Instrument (1/4" jack) (D.I.)

 

Outputs
Balanced Line (Male XLR)

 

Type
Tube & Solid-State Phase-Aligned Tone-Blending Mic Pre & DI

 

Tube Complement
12ax7

Pad
-15dB

 

High Pass Filter
75Hz

Maximum Power Consumption
160mA @120VAC
20W

Power Requirements
100-240VAC

 

Dimensions
8.45W x 3.5H x 10.25D

Weight
5.25 lb

Impedance:

 

Mic Input Impedance
2K ohms

 

Line Input Impedance
10K ohms

Hi-Z Input Impedance
2.2M ohms

 

Internal Output Impedance
600 ohms

 

Gain/Levels:

 

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

 

Maximum Mic Input Level Gain @min SS
+18 dBu

 

Maximum Mic Input Level Gain @min Tube 1% THD
-7 dBu dBu +8 dBu w/pad

 

Maximum Line Input Level Gain @ Min SS
+30

 

Maximum Line Input Level Gain @ Min Tube 1% THD
+8 dBu

 

Maximum Hi-Z Input Level Gain Min SS
+18

 

Maximum Hi-Z Input Level Gain Min Tube 1% THD
+8 dBu

 

Maximum Output Level into 600 ohms
+18 dBu

 

Maximum Output Level into 100k ohms
+28 dBu

 

Tube Clipping Level
Same as Max In

 

Solid-State Clipping Level
Same as Max In

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

Distortion
Min THD+Noise @ +4dBU
0.1% tube 0.005% solid-state

Docs

UA 2011 Product Catalog.pdf

710 Twin-Finity™ Manual.pdf