background image

 
INTRODUCTION 

 

The ART Voice Channel™ is the answer to your recording and computer audio interface needs. Our second-

generation discrete Class-A microphone preamp provides clean quiet gain while maintaining incredible 
transparency. A powerful dynamics processor subtly controls transients and noise of the most demanding 
sources. The ART Voice Channel’s semi-parametric EQ offers wide tune-ability and can be patched before OR 
after the dynamics processor. Separate insertion jacks allow you to use your favorite external signal 
processing gear immediately after the Mic preamp and before the EQ and dynamics processor. Another patch 
point exists just before the A/D converters. Choose between a wide range of outputs including balanced analog 
output, 44.1 KHz to 192 KHz AES/EBU, S/PDIF, ADAT and USB. Both analog and digital meters provide a 
detailed indication of audio levels. 

 

 

INSTALLATION 

 

The ART Voice Channel

 may be used in a wide variety of applications and environments. In a rack-

mountable, all-steel enclosure, the unit is designed for continuous professional use. Mounting location is not 
critical, however for greater performance reliability we recommend that you not place the unit on top of power 
amps, or other sources of heat and/or strong magnetic fields. The tube circuitry needs about a minute to “warm 
up” and stabilize from a cold power up. 

AC Power Hookup 

The ART Voice Channel

 has an internal power supply. Only connect the unit to mains power of the type 

marked on the rear panel. The power source must provide a good ground connection, and the ground pin on 
the mains plug should never be defeated. 

Analog Audio Connections 

Audio connections to and from the Voice Channel

 are: 

Front panel balanced combo input:   [XLR]  Pin 2 = Hot (+), Pin 3 = Cold (-), Pin 1 = Ground 

 

[1/4”]  Tip = Hot (+), Sleeve = Ground 

Rear panel balanced combo input:   [XLR]  Pin 2 = Hot (+), Pin 3 = Cold (-), Pin 1 = Ground 

 

[1/4”]  Tip = Hot (+), Ring = Cold (-), Sleeve = Ground 

Rear panel balanced 1/4” output: 

Tip = Hot (+), Ring = Cold (-), Sleeve = Ground 

Rear panel 1/4” insert input: 

Tip = Hot (+), Sleeve = Ground 

Mic Preamp Output:  

Tip = Hot (+), Sleeve = Ground 

A/D Main & A/D CH2 Inserts: 

Tip = Input, Ring = Output, Sleeve = Ground 

 4  

 

Summary of Contents for Voice Channel

Page 1: ...Voice Channel Tube Channel Strip with Digital Connectivity USER S GUIDE...

Page 2: ...bstruct the ventilation slots or position the unit where the air required for ventilation is impeded If the unit is to be operated in a rack case or other furniture ensure that it is constructed to al...

Page 3: ...Gain Reduction LED Meter 8 Expander Gate Switch 8 Expander Gate Threshold Control 8 Semi Parametric EQ 9 EQ Position Switch 9 EQ Bypass Switch 9 Output Level Control 10 Output Level Meters 10 Sample R...

Page 4: ...URES FIGURE 1 Preamp section 6 FIGURE 2 Dynamics Section 6 FIGURE 3 Equalizer Section 9 FIGURE 4 Signal Flow Block Diagram 10 FIGURE 5 Output Section 11 FIGURE 6 Rear Panel 11 FIGURE 7 Wordclock Termi...

Page 5: ...s and environments In a rack mountable all steel enclosure the unit is designed for continuous professional use Mounting location is not critical however for greater performance reliability we recomme...

Page 6: ...without the PAD switch depressed The instrument input gain markings are on the right side of the slash Refer to the APPLICATIONS section to learn how to optimize the gain control for low noise operati...

Page 7: ...ion of the switch Choose the NORMAL setting for adding warmth to the input signal This setting has an increased amount of tube saturation at higher signal levels Choose the HIGH setting to increase ov...

Page 8: ...ser function is OFF As the control is turned clockwise high frequency material is compressed more than mid and low frequency material De esser Freq Control This control selects which high frequencies...

Page 9: ...o select the Gate mode This mode quickly cuts off the noise as the input signal drops Expander Gate Threshold Control The Expander Gate action begins below the level indicated by the EXPANDER GATE THR...

Page 10: ...POSITION switch allows you to connect the EQ before or after the dynamics processing block This is useful in cases where the input signal needs a great deal of EQ before the Compressor Limiter process...

Page 11: ...U meter corresponds to 4dBu on the balanced outputs and about 20dB on the LED bargraph meter The LED bargraph meter indicates peak levels as well as average levels Average levels are indicated by a co...

Page 12: ...fect the USB output Optical Output Switch The OPTICAL OUTPUT switch sets the signal format of the rear panel OPTICAL OUTPUT connector In ADAT mode channels 1 and 2 are the left and right A D outputs o...

Page 13: ...k and an XLR jack This output is active balanced and will adjust to balanced or unbalanced termination without gain change The LED and analog meter monitor the level present at this output 0 VU on the...

Page 14: ...or this output S PDIF Output Jack This connector provides S PDIF formatted digital outputs from the left and right A D converters The front panel SAMPLE RATE DITHER control sets the sample rate dither...

Page 15: ...re that this meter never indicates clipping the red LED is held on after a transient The peak hold indicator can be in the yellow range or in the 5dB range of levels If the signal level is too high de...

Page 16: ...ns This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs This warranty is void if the serial number is altered defaced or re...

Page 17: ...Eastern Time Monday through Friday 4 Pack the unit in its original carton or a reasonable substitute The packing box is not recommended as a shipping carton Put the packaged unit in another box for s...

Page 18: ...12 dB on each band Low Freq Tuning 50 150 Hz Selectable MID 1 Freq Tuning 100 Hz to 3 KHz continuously variable MID 2 Freq Tuning 500 Hz to 15 KHz continuously variable High Freq Tuning 5K 15 KHz Sele...

Page 19: ...NOTES 18...

Page 20: ...www artproaudio com E mail support artproaudio com 2006 Applied Research Technology 19 165 5004 103...

Reviews: