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VCS-1 SPECIFICATIONS

System Performance

Signal-to-Noise Ratio:  

> 102 dB, A weighted

Total Harmonic Dist Noise:

< 0.1% typical, user-variable 

Frequency Response:

+0, -1 dB from <10 Hz to 35 kHz

+0, -3 dB from <10 Hz to 70 kHz

Inputs

Connectors:

Female XLR and 1/4” TRS 

(XLR pin 2 and TRS tip hot)

Input Impedance:

20 k

Ω 

Maximum Input Level:

+21 dBu

Outputs

Connectors: 

Male XLR and 1/4” TRS 

(XLR pin 2 and TRS tip hot)

Output Impedance:

<100 

Nominal Output Level:

balanced or unbalanced: +4 dBu

Maximum Output Level:

balanced or unbalanced: +21 dBu

Side Chain Send

Connector: 

1/4” TRS (tip hot)

Type:

Impedance balanced

Impedance:

1 k

Max Output Level:

+21 dBu

Side Chain Return

Connector: 1/4” 

TS

Type:

Unbalanced

Impedance:

>20 k

Max Input Level:

+21 dBu

Compressor

Threshold Range:

-40 to +20 dBu

Ratio: 1:1 

to 

×

:1

Threshold Characteristic:

Soft or Hard knee

Attack/Release Modes:

Manual or Auto

Manual Attack Range: 

0.1 to 200 ms

Manual Release Range: 

50 ms to 3 seconds

Auto Attack/Release Time:

Variable, program dependent

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Summary of Contents for VCS1

Page 1: ......

Page 2: ...ide reasonable protection against harmful interference in a res idential installation This equipment generates uses and can radiate radio fre quency energy and if not installed and used in accordance...

Page 3: ...Front Panel 5 Output Control 5 Clip LED 5 Tube Gain Control 5 VU Meter 5 Trim Adjustment 6 Gate Threshold Attenuation 6 De ess Control 6 Peak Limiter 7 Compressor Controls 7 Meter Function Switch 8 Au...

Page 4: ...upply to maximize signal to noise performance and transient response The premium grade 12AX7A vacuum tubes used in the VTP 1 are manufactured in Russia and hand tested and graded specifically for the...

Page 5: ...Connection Examples The following diagrams show a few ways in which the VCS 1 can be used 2...

Page 6: ...e jacks to be used if balancing is desired The 1 4 TRS inputs can also be used with an unbalanced source using a standard two conductor cable Plugging a 1 4 connector into the phone jack input will ov...

Page 7: ...LINE OUTPUT This output is servo balanced producing 4 nominal level to XLR and 1 4 TRS connectors Unbalanced cables may be used also 4...

Page 8: ...ing indicator to warn you of quick transient peaks that can cause audible output distortion The Clip LED will light when the signal is 3 dB below the onset of clipping Critical points in the audio pat...

Page 9: ...termines the level at which the noise gate closes Turning the control clockwise raises the threshold at which the gate will open For example if you have set the threshold to 20 dBu only signals louder...

Page 10: ...RATIO This control varies the amount of squeeze you need for the audio material that exceeds your threshold setting Turning the control clockwise from the 1 1 off position increases the ratio from ge...

Page 11: ...shold the Soft Knee setting will initiate a more gentle transition to com pression from just below the threshold This results in more natural sound even with higher ratios and attack times The Hard kn...

Page 12: ...t distort and low level notes that disappear in the mix Switch in the Auto setting and start with a ratio of 4 1 Auto is best for reducing release time chattering on sustained bass notes but you can s...

Page 13: ...S 1 s 4 5 kHz you can connect an equalizer into the Sidechain In this way you can experiment with the opti mum frequency by boosting individual frequencies until you find the correct one Because sibil...

Page 14: ...ed from the Sidechain Return works also Understanding VU Meter and Clip LED Readings The functions of the VU Meter and Clip LED combine to give an excellent indication of average and peak levels The b...

Page 15: ...12...

Page 16: ...tip hot Output Impedance 100 Nominal Output Level balanced or unbalanced 4 dBu Maximum Output Level balanced or unbalanced 21 dBu Side Chain Send Connector 1 4 TRS tip hot Type Impedance balanced Impe...

Page 17: ...pass 3 dB 4 5 kHz Vacuum Tube Circuit Type Class A high voltage parallel triode design Tube Complement Single 12AX7A per channel Saturation User variable Power Requirements Operating Voltage 120 V AC...

Page 18: ...15 DIGITECH VCS 1 SIGNAL FLOW DIAGRAM One Channel Only...

Page 19: ...Printed in the USA 18 2202 A...

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