DuTCH audio IM2.3 manual
(v1.0 24-05-2018)
Thank you for purchasing the DuTCH audio mastering Insert Matrix IM2.3. In this manual I
will explain how this device works and how to use it. Because this is not really a beginner's
device, I assume you already know quite some things so I will skip the basics. I will go from
the inputs, to the inserts and finally to the outputs, basically how the device handles
signals.
Inputs:
Rearpanel:
The IM2.3 has two balanced inputs which can be found on the back of the unit. Both inputs
consist of Neutrik XLR's.
Input switches:
On the frontpanel you can choose between the 2 inputs by pushing the corresponding
switch. It's also possible to use both inputs at the same time, but keep in mind that this will
cause some impedance changes.
Polarity:
Above the 2 input selector switches you will find the 'polarity switch' which will swap the
polarity of the balanced inputs on both Left and Right. Sometimes swapping polarity will
give a better impulse response, mostly in the low frequencies. In most cases swapping
polarity is not needed, but in the cases where you want to, this button comes in very
handy.
Active gain:
Both inputs are totally passive with just relays, but by pushing the 'active gain' switch you
will enable the active gain stage which enables you to change the input gain to your liking.
In the mid position, so at the 12 o' clock position, there is no gain applied though it passes
the active gain circuit. You can change the gain in 23 x0.5dB steps from +5.5dB to -5.5dB
with stepped switches.