DUTCH MSM1 User manual

DuTCH audio MSM1 manual

DuTCH audio MSM1 manual
(v1.0 23-08-2021)
Introduction:
Thank you for purchasing the DuTCH audio MSM1. In this manual we will explain how this
device works and how to use it.
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:
The MSM1 is a Mid/Side encoder/decoder that let’s you process a device connected to the
inserts in either stereo ode or M/S ode. When set to stereo (encode/decode off), the
MSM1 is 100% passive, when set to MS, it will pass the active id/side circuitry. Both
encoder and decoder can be used separately fro each-other. In nor al MS ode, both
enoder and decoder should be active.
MS encode
When the MS encode’ button is pushed, the MS encoder section will beco e active. The left
channel is Mid, right is Side.
MS decode
When the MS decode’ button is pushed, the MS decoder section will beco e active. The MS
encoded signal will decoded to stereo again.
Mute M:
The mute m’ button will ute the id channel so that you listen to just the side
infor ation.
Mute S:
The mute S’ button will ute the side channel so that you listen to just the id infor ation.
Width:
When you enable the width’ button, the width circuit beco es
active
and you can change the gain of the side channel and so, aking
it
ore wide 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 ore precise control then with course
steps
and a big range you probably won’t need.
Power:
The power’ button powers up the unit. When powered off, the MSM1 still passes audio
which runs through the inserts.
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 internal 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 with MS encode and decode off, it’s 100%
passive and only relay-contacts are inline. This eans it’s basically a straight wire.

Specifications:
Maxi u gain passive: >+24dBu
Maxi u gain passive: +23dBu
Noise level passive: >118dB(a)
Noise level active: >116dB(a)
Stereo crosstalk (passive): >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 5 watt
Unit size: standard 1u 19 inch, depth 25c
Weight: approx 1kg
Specifications subject to change because always improving
Service and warranty:
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
[e-mail]
https://dutch.audio