Mdr8 input and output connections – Samson MDR8 User Manual

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Line Level Input - Mono Input Channels

Use these inputs to connect line level signal from synthesizers, drum machines, effects processors or any
line-level signal. The LINE inputs have a nominal operating level of -40dB through - 10dB. TRS phone jacks
(located in the center of the combie connector). Connector pin-out - Sleeve: Ground, Tip: Hot (+), Ring: Cold
(-)

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 nominal operating level of –50dB through -20dB. The MIC inputs also feature +48V phantom
power, allowing you to use condenser microphones. The Phantom Power switch located on the MDR8’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 - Stereo Input Channels

The MDR8’s stereo channels have a stereo LINE input with the Left Input located in the center of the
Combie connector and a separate 1/4-inch connector for the Right Input. You can connect the outputs
from stereo devices such as synthesizers, drum machines, effects processors or any stereo line-level sig-
nal. The LINE inputs have a nominal operating level of -40dB through - 10dB. TRS phone jacks Connector
pin-out - Sleeve: Ground, Tip: Hot (+), Ring: Cold (-)

Microphone Input - Stereo Input Channels

The MDR8’s stereo channels have a utility MIC input located on the Combie connector. The utility MIC
inputs have a nominal operating level of –50dB through -20dB. The MIC inputs also feature +48V phantom
power, allowing you to use condenser microphones. The Phantom Power switch located on the MDR8’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 (-)

MDR8 Input and Output Connections

CHANNEL 1–8 MIC and LINE INPUTS

The MDR8’s eight input channels each have a "Combie" (combination XLR & 1/4-inch) connector with a LINE
level, Hi-Z (High Impedance) input and a MIC level, Low-Z (Low Impedance) input. By using the GAIN control
on channels 1-4 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 devices 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 MDR8’s input and output connectors.