MMR4/4 is a MIDI matrix
with merge function. It is equipped with 4 MIDI inputs and 4 MIDI
outputs. Inputs and outputs can be assigned in any combination.
If an output is assigned to more than one input the regarding
inputs are merged.
The control of the MMR4/4 is done with 8 buttons and 8 LEDs at
the front panel which are assigned to the 4 inputs and outputs.
The LEDs display the input/output configuration which can be
changed very easy with the corresponding buttons. Up to 4
different configurations can be stored non volatile within the
MMR4/4. During normal operation the LEDs display the activities
on the inputs and outputs. A panic button is available
transmitting all notes off on all channels and outputs if
activatet.
MMR4/4 processes all types of MIDI events but there are
restrictions for some events and high transmission rates when
data are subject to merge. For example only one MIDI realtime
master is allowed in a MIDI system. So if realtime events (clock,
start, stop, continue) appear on two ore more inputs only the
realtime events of those input are passed on where they arrived
first. If system exclusive data are to be transmitted the other
inputs are locked during the sysex transmission as sysex data mus
be sent in one package and are not allowed to be interrupted by
other MIDI events like note on/off, control change, program
change or others.
Of course the MMR4/4 is not able to increase the MIDI
transmission rate. The sum of the incoming MIDI events to be
merged must not exceed the maximum MIDI transmission rate.
Otherwise data loss may be the result.
At the rear panel the 8 MIDI in/outputs and the connector for the
external power supply are located. The MMR4/4 includes an
external power supply for 230V AC. For other mains voltages the
power supply must be purchased by the customer in his country
(7...12V DC/500mA with 2.1 or 2.5mm connector required).
MMR4/4 is available in the light grey aluminium standard case
(dimensions: 200 x 100 x 42 mm) or in the 19" version with 1
HU (same case as standard version but equipped with a large light
grey 19" front panel).
For detailed information you may look at the English User's Guide of the MMR4/4.
Prices
(including power supply for 230V mains voltage):
standard version: sold out
19" version: sold out