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Universal Audio Outboard 710 TWIN-FINITY

710 Twin-Finity™ Tone-Blending Mic Preamplifier & DI Box 100% Tube to 100% Solid State
221 Universal Audio in Lebanon and Egypt

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  • 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.

 

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

Studio Outboards Universal Audio Shop

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