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The ACTIVE-Button

The ACTIVE-Button

The ACTIVE-Button

The ACTIVE-Button

IMC5 has a "true bypass" circuit. This circuit makes it possible for the 
device to remain in the signal path even without a power supply. In this
case, the applied audio signal is switched to the output directly and 
lossless. 
The ACTIVE button on the front left of the front panel allows manual 
switching of true bypass. A red LED is signalizing an active unit.

The EQ-Button

The EQ-Button

The EQ-Button

The EQ-Button

The knob in the middle switches the EQ in the audio-path. A pressed 
switch causes a red LED to light up and is signalizing an active EQ. 
Use this switch for a quick check of the defeat signal against the EQ 
signal.

The FF/FB-Button / OVER-LED

The FF/FB-Button / OVER-LED

The FF/FB-Button / OVER-LED

The FF/FB-Button / OVER-LED

This knob defines the working character of the compressor.
There are two types of signal tap for the sidechain: The feed forward 
(= FF) is the signal before the compressor tapped, with feed backward
(= FB) after the compressor.
Newer compressors work almost exclusively with "Feed Forward" (FF). 
Many "classics" (such as 1176 or 660) used the Feed Backward (FB) 
method. The difference between the types: FF intervenes much "harder"
in the signal. FB allows a much "gentler" method of compression.
If the knob is pressed the compressor is working in FF-mode. A 
unpressed knob means that the compressor is working in FB-mode. 

The LED inside the switch is a signal overload indicator (OVER). It flashes in case of an output signal 
greater than +6 dB. It's not a signal indicating distortion! It just informs the user that you are 
reaching a zone in which you have to be careful not to jump over the top. 
The FF/FB-button has no illumination itself.

INPUT

INPUT

INPUT

INPUT

The INPUT potentiometer is an attenuation of the input signal. It reduces the 
input signal in a range from -10 dB to 0 dB.   
Because IMC is a grateful amplifier it needs some “headroom” to work. Also 
one can reduce the pending signal before reaching the EQ.

IMC5

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© DOCtron 2021

Summary of Contents for IMC5

Page 1: ...Martin Stimming s Instant Mastering Chain v 5 1 7 Set up and operating instructions Introduction 2 Safety 3 Overview 4 Circuit Parts In Detail 5 Tech Specs 14 IMC5 1 DOCtron 2021...

Page 2: ...accessible to everyone The result is a device that represents a milestone in technical and practical terms IMC is elaborately crafted by hand The inner values are excellent and the case also manufact...

Page 3: ...s are not decoration and should never be covered during operation The main reason for technical defects are mostly heat problems In non ventilated cabinets use ventilation panels 1H between units even...

Page 4: ...Overview Here is the entire circuit as a block diagram IMC5 4 DOCtron 2021 Figure 1 block diagram...

Page 5: ...sitive and negative supply voltages is carried out in the device by its own sub switching power supplies Due to the conductivity of the carbon casing material sufficient protection against the outside...

Page 6: ...In this case the negative Signal RING will be grounded IMC5 works internally unbalanced The problem here is often ground and ground loops resulting from multiple shielding In a stereo connection thus...

Page 7: ...sidechain The feed forward FF is the signal before the compressor tapped with feed backward FB after the compressor Newer compressors work almost exclusively with Feed Forward FF Many classics such as...

Page 8: ...ches one can regulate the parameters of the integrated compressor RATIO RATIO RATIO RATIO Ratio determines the ratio of uncompressed to compressed signal 1 1 5 is therefore a slight compression while...

Page 9: ...s If you choose to put DRIVE to the nuts position you will get a horrible distorted signal DRIVE to the nuts position you will get a horrible distorted signal DRIVE to the nuts position you will get a...

Page 10: ...tch phantom power off switch phantom power off because the protection can degrade the audio signal SIDECHAIN SIDECHAIN SIDECHAIN SIDECHAIN With SIDECHAIN SEND and RETURN you can influence the control...

Page 11: ...0 0186 primary voltage 90 264 V el power 10 Watt max Input Voltage Range 27 5 dBu Input Impedance 47 k PSRR 90 dB Max Output Level 24 dBu 20Hz load 600 Gewicht IMC 1000g Contact details Contact detai...

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