Operation:
The MSM1 is a Mid/Side encoder/decoder that let’s you process a device connected to the
inserts in either stereo mode or M/S mode. When set to stereo (encode/decode off), the
MSM1 is 100% passive, when set to MS, it will pass the active mid/side circuitry. Both
encoder and decoder can be used separately from each-other. In normal MS mode, both
enoder and decoder should be active.
MS encode
When the
‘MS encode’
button is pushed, the MS encoder section will become active. The left
channel is Mid, right is Side.
MS decode
When the
‘MS decode’
button is pushed, the MS decoder section will become active. The MS
encoded signal will decoded to stereo again.
Mute M:
The
‘mute m’
button will mute the mid channel so that you listen to just the side
information.
Mute S:
The
‘mute S’
button will mute the side channel so that you listen to just the mid information.
Width:
When you enable the
‘width’
button, the width circuit becomes active
and you can change the gain of the side channel and so, making it
more 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 more 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 mostly passive circuits, but some sections need to be active, but
always with transparency in mind. 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) Omron Relays.
Stepped switches are military grade Blore Edwards for long life and really nice mechanical
feel. In and 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 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 mode, so with MS encode and decode off, it’s 100%
passive and only relay-contacts are inline. This means it’s basically a straight wire.
Содержание MSM1
Страница 1: ...DuTCH audio MSM1 manual...