DUTCH IM2.1s Manual Download Page 3

Operation:

Inputs:

Input 1 / input 2:

You can choose between the 2 inputs by
pushing the corresponding button. It’s also
possible to use both inputs at the same time,
but keep in mind that this could cause some
impedance changes.

Swap L/R:

When you engage the

‘swap l/r’

button the left

and right channel will be swapped in order.
Sometimes this will bring things to the surface
that you didn’t notice before because of the
new listening approach.

Polarity:

The

‘polarity’

button will swap the polarity of

both Left and Right. Sometimes swapping
polarity will give a better 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.
Keep in mind that obviously this only works with balanced signals.

Active gain:

Both inputs are passive with just relays, but by pushing the

‘active gain’

button you will

enable the active gain stage which enables you to change the input gain to your liking. In
the mid/0 position, there is no gain applied though it passes the active gain circuit. You can
change the gain in 23x0.5dB steps from +5.5dB to -5.5dB with stepped switches.

Inserts:

Insert 1 and 2:

This is a 100% passive insert section with just relays. When disabled, it will directly pass
the signal internally to the next stage. When you enable the insert (1 and/or 2), it will pass
the signal to the corresponding send/return. It will first pass insert 1 and then it goes into
insert 2. When you push the

‘swap 1 /2’

button, it will swap the order of the inserts. So

instead of 1>2 the order will become 2>1.

Insert 3 (blend):

Insert 3 has an active parallel/blend function. With
insert 3 you can blend the dry and wet signal
together. Most parallel processing uses one control
for blending from wet to dry and uses a potmeter.
The IM2.1(s) uses two separate controls for wet and
dry with stepped switches instead of a potmeter.
This way you don’t have channel imbalance, easy
recall and way better control over what happens to
the signal. For instance you can choose to compress the signal and blend in just a bit of dry
signal. But you also choose to use the dry signal and blend in a bit of quite aggressive
compression. The first steps on the stepped attenuators have 1 dB per step and the last
steps have more course steps, the lowest step is -33dB. The off position mutes the wet or
dry signal.

Summary of Contents for IM2.1s

Page 1: ...DuTCH audio IM2 1 s manual ...

Page 2: ...orms or when unused for long periods of time Do not use this machine near water or outside Clean only with a dry soft cloth Do not spray any liquid cleaner onto the cabinet as this may lead to dangerous shocks Do not install near any heat sources such as radiators heat registers stoves or other machines including amplifiers that produce heat Avoid exposure to direct sunlight This machine typically...

Page 3: ...the gain in 23x0 5dB steps from 5 5dB to 5 5dB with stepped switches Inserts Insert 1 and 2 This is a 100 passive insert section with just relays When disabled it will directly pass the signal internally to the next stage When you enable the insert 1 and or 2 it will pass the signal to the corresponding send return It will first pass insert 1 and then it goes into insert 2 When you push the swap 1...

Page 4: ...or narrow We chose to use a dedicated width enable button for A B purposes The width gain range is 6 5 3 5 with 23 steps This way you have more precise control then with course steps and a big range you probably won t need Mid Side mute The mute mid and mute side buttons will let you mute mid or side so that you can listen to just the sum mid or the diff side Other MS functions When you don t use ...

Page 5: ...s is just an AB function no recall is needed Internally the gain range of the monitor trim can be calibrated with 2 multiturn trimmers note the bypass gain range on earlier revisions was 2dB to 8dB IM2 1s Active output gain The output is passive with just relays but by pushing the active gain button you will enable the active gain stage which enables you to change the output gain to your liking In...

Page 6: ...output connectors are gold plated Neutrik DB25 inserts are gold plated wurth connectors Active circuits make use of analog devices and THAT drivers The mid side circuit is based on the well known circuit from Wayne Kirkwood but with additions modifications The internal PSU section is build around industrial grade Meanwell SMPS s which run way more silent and are way more efficient then old school ...

Page 7: ...oning of the product Warranty repairs are only made by us or by a workshop we agree upon We are not responsible for any malfunction of or damage caused by parts that are not produced by DuTCH audio If you choose to ship back a faulty unit to us you must contact us before you do so We need the serial number located on the back of the unit to handle the repair and if warranty is still valid The prod...

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