Operation Manual
16
Microphone Input - Mono Input Channels
Use these inputs to connect Low Impedance microphones and low level signals from direct boxes. The MIC inputs have a nomi-
nal operating level of -62dB through -8dB. The MIC inputs also feature +48V phantom power, allowing you to use condenser
microphones. The Phantom Power switch (located on the MDR16’s rear panel) enables phantom power on all the microphone
inputs when set to the ON position. XLR Connector pin-out - Pin 1: Ground, Pin 2: Hot (+), Pin 3: Cold (-)
Line Level Input - Mono Input Channels
Use these inputs to connect line level signals from synthesizers, drum machines, effects processors or any line-level signal. The
LINE inputs have a nominal operating level of -27dB through +27dB. TRS phone jacks. Connector pin-out - Sleeve: Ground, Tip:
Hot (+), Ring: Cold (-)
INSERT- Mono Input Channels
Send and return patch point on TRS (TIP/RING/SLEEVE) jack for interfacing external effects processors.
Stereo/ Dual Mono Input Channels
The MDR16’s channels 9 – 16 can be used for either four stereo inputs or eight mono inputs. These channels feature a combi-
nation XLR and 1/4 inch connector, often referred to as a “combie” connector, to handle both the LINE and MIC inputs. The LINE
input is located in the center of the combie connector. You can connect the outputs from devices such as synthesizers, drum
machines, effects processors or any line-level signal. The LINE inputs have a nominal operating level of -27dB through +27dB.
The TRS phone jacks Connector pin-out is; Sleeve: Ground, Tip: Hot (+), Ring: Cold (-). The MDR16’s stereo/dual mono chan-
nels have a utility MIC input located on the combie connector. The utility MIC inputs have a nominal operating level of -40dB.
The MIC inputs also feature +48V phantom power, allowing you to use condenser microphones. The Phantom Power switch
(located on the MDR16’s rear panel) enables phantom power on all the microphone inputs when set to the ON position. The
XLR Connector pin-out is; Pin 1: Ground, Pin 2: Hot (+), Pin 3: Cold (-).
Odd Channel (Left) Mic/Line Input
If you want to use the Stereo/Dual Mono channels for stereo you would connect the left side to the odd numbered channel.
When using the inputs for stereo signals, be sure to set the pan knob all the way to the left to maintain the stereo balance. Of
course, you can connect any mono signals here as well. Channels 11 through 16 are configured the same as 9 and 10.
Odd Channel (Left) Mic/Line Input
If you want to use the Stereo/Dual Mono channels for stereo you would connect the right side to the odd numbered channel.
When using the inputs for stereo signals, be sure to set the pan knob all the way to the right to maintain the stereo balance. Of
course, you can connect any mono signals here as well. Channels 11 through 16 are configured the same as 9 and 10.
MDR16 Input and Output Connections
CHANNEL 1–8 MIC and LINE INPUTS
The MDR16’s input channels 1 - 8 each have an XLR MIC level, Low-Z (Low Impedance) input and a 1/4-inch LINE level, Hi-Z (High
Impedance) input. By using the GAIN control on channels 1- 8, you can connect a variety of signal sources from microphones and
direct boxes to line level devices such as synthesizers and drum machines. All the LINE and MIC inputs are balanced. The MIC inputs
are compatible with microphones with output impedances of 50~600 Ohms and the LINE inputs are compatible with line level devic-
es of 600 Ohms.
NOTE:
It is not possible to simultaneously use both the LINE and MIC inputs on the same channel (with the exception on the stereo
input channels). Use only one of the inputs for the appropriate source for each channel.
Following below is a detailed description of the MDR16’s input and output connectors.
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