Universal Audio 710 TwinFinity Tube & Solid State Mic Pre/DI

Product Information:

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

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.

Specifications:

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
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