DUTCH IM1.5 User manual

DuTCH.audio IM1.5 Insert Machine manual

DuTCH.audio IM1.5 manual
(v1.1 29-06-2021)
Thank you for purchasing the DuTCH audio Insert Machine IM1.5. In this manual we will
explain how this device works and how to use it. ince this is not really a beginner’s device,
we will skip the basics and focus on it’s functions. We will go from the inputs (left side), to
the inserts (middle) and to the outputs (right side), basically how the device handles
signals.
Important Safety Instructions:
Please follow these precautions when using this product:
Read and keep these instructions.
Heed all warnings and follow all instructions.
Dangerous voltage lives inside this achine. Opening is only allowed by qualified
service personnel.
Unplug this achine during lightning stor s or when unused for long periods of ti e.
Do not use this achine near water or outside.
Clean only with a dry, soft cloth. Do not spray any liquid cleaner onto the cabinet, as
this ay lead to dangerous shocks.
Do not install near any heat sources such as radiators, heat registers, stoves, or other
achines (including a plifiers) that produce heat. Avoid exposure to direct sunlight.
This achine typically runs slightly war when operated. Install in a nor al ventilated
area. If the product will be used in a rack, ake certain there is sufficient air
ove ent within the rack. Preferably offer so e e pty rack space above the unit and
do not place it on top of hot equip ent.
Refer all servicing to qualified service personnel. Servicing is required when the
achine has been da aged in any way, such as when the powersupply plug is
da aged, liquid has been spilled or objects have fallen into the achine, the achine
has been exposed to rain or oisture, does not operate nor ally, or has been dropped.
WARNING: To reduce the risk of fire or electric shock, do not expose this achine to
rain or oisture.

Operation:
Input:
Input:
The input 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 input gain to your liking. In the
id/0 position, there is no gain applied though it passes the active gain circuit. You can
change the gain in 23x0.5dB steps fro +5.5dB to -5.5dB with stepped switches.
Inserts:
Insert 1 (blend):
Insert 1 has an active parallel/blend
function.
With insert 1 you can blend the dry and
wet
signal together. Most parallel processing
uses
one control for blending fro wet to dry
and
uses a pot eter. The IM1.5 uses two
separate
controls for wet and dry with stepped
switches
instead of one pot eter. This way you don’
t
have channel i balance, easy recall and
way
better control over what happens to the
signal.
For instance you can choose to co press 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 co pression.
The first steps on the stepped attenuators have 1 dB per step and the last steps have ore
course steps, the lowest step is -33dB. The off position utes the wet or dry signal.
Blend 1:
With the blend 1 button you can switch between passive or blend/parallel ode.
Insert 2:
Insert 2 is a regular passive insert.
Using wet/dry as active gain
This is a hidden feature, ‘the Bob Katz mod’. It's possible to activate the blend
function even when insert 3 is not activated. The wet and dry knobs become gain
knobs and they will be behave like an active gain in between the inserts. Because
the wet control is not passing the insert itself, you can combine the wet/dry gains to
add up to 6dB gain.
Insert 3 and (mid/side):
Insert 3 and 4 can be used for Mid/Side processing. When set to stereo, it will be 100%
passive, when set to MS, it will pass the active id/side circuit.
Mid Side:
When the ‘mid/side’ button is engaged, both inserts 3 and 4 will work in MS ode. Left
channel is Mid (su ), Right channel is Side (diff).
Width:
With the width control you can change the gain of the side channel and
so,
aking it ore wide or narrow. The width gain range is done in 23
steps
fro -6.5dB to +3.5dB.

Output:
Active gain:
The output is passive, 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 the id/0 position,
there is no gain applied though it passes the active gain circuit. You can change the gain in
23x0.5dB steps fro +5.5dB to -5.5dB with stepped switches.
Rearpanel:
Inputs:
The IM1.5 has balanced inputs. Both inputs consist of gold-plated Neutrik XLR’s.
Inserts:
The IM1.5 has 4 balanced inserts connected on the back with industry standard Tasca
DB25 analog connectors. Each connector holds 2 inserts corresponding with the frontpanel
nu bering.
* Note: Be careful with DB25 tascam standard/premade cables. The digital AE /EBU
cables have their inputs and outputs swapped compared to the analog version.
Outputs:
On the rearpanel you will find the output with balanced gold-plated Neutrik XLR’s.
Power:
The ‘power’ input is for connecting the external power-supply to the IM1.5.
Technical:
Hardware:
This device is built around ostly passive circuits, but so e sections need to be active, but
always with transparency in ind. The sturdy frontpanel-switches have, depending on their

function, 2 color leds for visual feedback. All relays are high sensitive, long-life (15.000.000
cycles) O ron Relays.
Stepped switches are ilitary grade Blore Edwards for long life and really nice echanical
feel. In and output connectors are gold-plated Neutrik, DB25 inserts are gold-plated wurth
connectors. Active circuits ake use of analog devices and THAT drivers. The id/side
circuit is based on the well-known circuit fro Wayne Kirkwood, but with
additions/ odifications.
The external PSU section is build around industrial-grade Meanwell SMPS’s which run way
ore silent and are way ore efficient then old-school linear PSU’s. Both the relays/leds
and active circuit PSU’s are running on their own separate PSU.
When this device is used in passive ode, so without active stages, it’s 100% passive and
only relay-contacts are inline. This eans it’s basically a straight wire.
Pushswitch labeling:
To have so e extra visual feedback on the push-switches you can put labels under the
switch-covers. You can si ply, but carefully, re ove the switch cover with a s all
screwdriver and put so ething like a transparent dy o letratag sticker on the white plastic
piece inside the switch-cover. More info and a manual can be found on our website.
Specifications:
Maxi u gain passive: >+24dBu
Maxi u gain active gain: +24dBu
Noise level passive: >118dB(a)
Noise level active: >116dB(a)
Stereo crosstalk: >110dB(a)
Stereo crosstalk id/side: >80dB(a)
THD passive: 0.00042% (AD/DA li itations)
THD active: 0.00045%
Input voltage 100 to 240VAC 50/60HZ.
Power consu ption ini u 5 watt
Power consu ption axi u 20 watt
(Power consu ption depends on the a ount of inserts, input, output etc activated)
Unit size: standard 1u 19 inch, depth 25c
Weight: approx 2kg
pecifications subject to change because always improving
Service and arranty:
We offer a standard 2 year li ited warranty on all of our products.
In the event that you or a third party has (partly) altered or repaired anything, the
warranty will expire, and you will be held responsible for the da ages caused by any
possible isfunctioning of the product. Warranty repairs are only ade by us or by a
workshop we agree upon.
We are not responsible for any alfunction of or da age caused by parts that are not
produced by DuTCH.audio.

If you choose to ship back a faulty unit to us you ust contact us before you do so. We
need the serial nu ber (located on the back of the unit) to handle the repair and if
warranty is still valid.
The product should be returned in it's original package or packed in such a way that it
is not da aged during the ship ent with extra support for the rack ears. We are not to
be held responsible for any da ages during the ship ent.
The custo er always pays the shipping cost to us.
The custo er is responsible for the product until it is delivered to us
If we find that the product is flawless the custo er will be charged 200 euro to cover
our costs for exa ination and handling. The return costs will also be charged.
© DuTCH.audio 2021
Hand ade in Holland on Solarpower
[email protected]io
https://dutch.audio
Phone: [phone]