SM Pro Audio M-Patch 4M: Passive Controller/Switcher with Talkback - Manual (Page 8)

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• To trim the output level of a digital-to-analog converter, such as those found in
high end pre-amplifiers
• As a local volume control for distributed audio systems
• To monitor directly from the outputs of your computer sound card or audio in-
terfaces without using a mixer, and without degrading bit-resolution by reducing
volume within your DAW
Simple Ideas for Studio Use
Typically you would connect the output of your computer soundcard or audio inter-
face to the input of the M-Patch 4M via the RCA, TRS, or XLR jacks.
However, you can connect multiple devices as required. For example, your could
connect the outputs of your audio interface to the balanced XLR inputs, and your
soundcard’s mini-jack output to the stereo 3.5mm AUX input. At the same time you
could also connect your CD player or other line level device to the AUX RCA
inputs, and the output of a mixer to the second set of balanced inputs.
Connect XLR cables from the outputs of the M-Patch 4M directly to your active moni-
tors or the amplifier that powers the monitors. Since you have multiple
outputs available simultaneously, you could easily route a second M-Patch 4M
output to a subwoofer. In this sceario, simply connect the C/R 1 outputs to your left
and right monitor speakers and the C/R 2 output output your subwoofer.
To avoid the bit-degradation that results from lowering the master volume output
of your computer DAW, connect the output of your computer audio interface to an
M-Patch 4M input, and an output of the M-Patch 4M to the input of your powered
studio monitors (or amplifier driving passive monitors). Turn the volume of your moni-
tors up all the way, set your DAW and audio interface software volume control panel
to 0dB, and use the M-Patch 4M control your monitoring level.
The M-Patch 4M: Simple, effective, transparent!
SPECIFICATIONS
AUDIO INPUTS
Connectors 4 x Combination XLR – 1/4” TRS
2 x stereo RCA pair (L&R)
2 x stereo 3.5mm jack
AUDIO OUTPUTS
Output Connectors 3 x XLR L/R pairs
1 x RCA L/R pair
1 x 1/4” L/R pair
HEADPHONE OUTPUT
Output Connectors 1 x 14” TRS stereo
Frequency response 20Hz – 20Hz +/- 0.5dB
Maximum output level 320mW into 32Ù
POWER
External DC12-16V adaptor
PHYSICAL
Dimensions (no rack ears) 37cm x 15.5cm x 8.5 cm
Net weight approx. 5kg