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Universal Audio 710 Twin-Finity Mic Pre & DI  From UA

A 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.

Universal Audio

$899.00

Retail:  $1,149.00

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710 Twin-Finity Mic Pre & D.I.

The 710 Twin-Finity™ is a radically new UA pre-amp design which uniquely combines both the classic retro warmth of UA tube design and the transient bite of solid-state in a 2U, half-rack, all-metal chassis. The 710 was created specifically to add the tonal versatility and sonic inspiration missing from generic audio interface preamps.

  • Signal Chain
    • Universal Audio 710 Twin-Finity Mic Pre & DI

Manufacturer's Description from UA

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.

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.

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, Optional Desktop Handle Kit also available
  • 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
Universal Audio

About Manufacturer

Universal Audio Inc. was re-founded in 1999 by Bill's sons, James Putnam and Bill Putnam Jr., with two main goals: to faithfully reproduce classic analog recording equipment in the tradition of their father, and to design new digital recording tools with the sound and spirit of vintage analog technology. However, as Bill Jr. recounts, the genesis of "UA, part 2" is actually a bit more serendipitous.

Having grown up in the music industry, Bill Jr. and James ("Jim") Putnam naturally assumed that the music business is where they'd eventually end up. Jim, a touring musician and recording engineer, and their older brother Scott, a studio designer in Southern California, were the first to follow in Bill Sr.'s path. However, Bill Jr. took a more circuitous direction, working for a number of engineering companies before undertaking a doctorate in Electrical Engineering at Stanford University. It was at Stanford that Bill Jr. became closely involved in the Center for Computer Research in Music and Acoustics (CCRMA), specializing in signal processing. It was also at Stanford that Bill Jr. began to assemble a team of the best and brightest minds in the field — who continue to steer many of Universal Audio's engineering efforts to this day.

However, the precise event that led Bill and Jim to start (or "reinvent") Universal Audio in 1999 was unexpected. As Bill Jr. tells it, when Bill Sr. passed away in 1989, he and Jim were faced with the Herculean task of cleaning out their dad's workshop and storage areas. While going through Bill Sr.'s old test equipment, boxes of parts, bits and pieces of consoles, and half-cannibalized 1176 compressors, Jim came across their father’s old design notebook. The two spent the evening poring over his notes, realizing that this was the map to every technical problem their father had ever solved. It was at that moment that they decided to bring back Universal Audio and its classic products. 

Fast forward a decade. Now with nearly 80 employees and legions of new customers worldwide, UA is headquartered near the Silicon Valley, in Scotts Valley, California — where our classic analog gear is still hand-built, one unit at a time. The lengths we go to deliver the exact sound and performance of classic analog audio gear is unparalleled; in fact, the goal is for UA's modern units to perform identically to well-maintained units built decades ago. 

Of course, analog is only half the story. At Universal Audio, we employ the world's brightest DSP engineers and digital modeling authorities to develop our award-winning UAD Powered Plug-Ins platform, featuring the most authentic analog emulation plug-ins in the industry. Our DSP gurus work with the original hardware manufacturers — using their exact schematics, golden units, and experienced ears — to give UAD plug-ins warmth and harmonics in all the right places, just like analog.

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

 - 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

 - Maximum Mic Input Level Gain @min Solid-State: +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

 - 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

Downloads

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710 User Manual