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IGS Audio
S-Type
Mix Bus Compressor
User’s Manual.
Description
The S-Type is a typical VCA compressor well known as the core of
British sound. Used first in the SSL consoles produced in the 1980s. The
heart of the compressor is the THAT chip instead of the now unavailable
DBX. The analogue path is balanced with ultra-fast A class NE chips.
This is the source of completely transparent sound. A minimal level of
noise allows the device to be used in recording classical music, including
long range recording. Due to transformer symmetric inputs and outputs
the compressor work great with all line signals. The output level is hot
enough for very demanding converters like Apogee, Lynx, Mytek (up to
+24dBU).
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Front panel
1. dB reduction meter
2. Threshold knob (-20dB to +20dB): sets compression threshold
3. Ratio (2:1, 4:1, 10:1): sets compression ratio
4. Attack switch (0.1, 0.3, 1, 3, 10, 30 ms): adjusts response time
5. Release switch (0.1, 0.3, 0.6, 1.2, Auto s): adjusts release time
6. Output knob (0dB to 20dB): makes up for volume lost in
compression
7. Bypass switch: Bypasses the compressor
8. Power switch
Rear Panel
From left to right:
1. Power socket 230V AC 50Hz-60Hz
2. Fuse 315 mA Slow Blow
3. Identification plate
4. Output – right
5. Input – right
6. Output – left
7. Input - left
Getting started
1. Connect your S-Type to your sound interface (stereo inputs and
stereo outputs) with four symmetrical XLR wires
2. Send your current audio project to the selected outputs
3. Activate the selected input channels on your local mixer
4. Set the Threshold knob to 20, Output knob to 0
5. Set Ratio to 2:1, Attack to 30, Release to ‘Auto’, Compressor to
‘Bypass’
6. Switch on the S-Type
7. Play sound from your source
8. Switch Compressor to ‘IN’
9. Turn the Threshold CCW until compression is satisfying
10. Turn the Output knob CW until volume is right
11. To control transients adjust the Attack switch
12. Adjust the Release switch to your song’s rhythm (Try to “pump
up” the sound)
13. Compare your results to the original sound by using Bypass
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Typical usage:
• Great summing and mastering compressor
• Beat compressor for external drum machines
• Drum compressor for live drums
• Can be used to compress single stereo instruments (pads, leads)
The S-Type is a precision dynamic range controller intended for use in
the most demanding professional audio applications. RMS detection,
high headroom input circuits and output drivers, give the S-Type its
own sonic excellence.
Notice
1. No manipulation inside the device by any unauthorized person is
allowed.
2. If you want to mount your device on a rack, then you may remove
the four rubber stands from under the device.
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Specification:
• 2 balanced XLR Mic/Line Inputs
• 2 balanced XLR Outputs
• +4dB operating level
• Maximum Output +29 dBV
• Gain reduction up to 20dB
• Max Gain 20dB
• Pure class A audio path
• Frequency response 20Hz to 20kHz; +/- 0.1dB
• Precise analog scales
• One volume control for both channels
• Internal power supply
• Mains consumption 25 Watts
• 230V/110V Power option
• Shipping weight 5 kg
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Warranty
Warrants this device to be free from defects in material and
workmanship for a period of three years. Any device found defective
within three years from the delivery date and returned to the factory
with transportation charges prepaid will be repaired, adjusted, or
replaced at no charge to the original purchaser. This warranty does not
cover expendable items such as tubes or fuses. If the defect has been
caused by a misuse or abnormal operation conditions, the repair will be
billed at a nominal cost
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