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Hi

I'm new to the forum and REW (albeit I've been lurking for some time now). I recently purchased a M-Audio Fast Track II USB Audio Interface with the objective of optimising the setup of my listening room.

I'm a little lost as to how best to go about calibrating the M-Audio to remove its response from room measurements.

The M-audio has two line outputs and a XLR input (with phantom power) for a mic as well as a 1/4” input for a guitar or other instrument.

What would be the best way of creating a loopback - would it be via a RCA to XLR connector connected to the line out and the XLR input (with phantom power off) or would it be via a RCA to 1/4” connector connected to the line out and the 1/4” input?
 

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What would be the best way of creating a loopback - would it be via a RCA to XLR connector connected to the line out and the XLR input (with phantom power off) or would it be via a RCA to 1/4” connector connected to the line out and the 1/4” input?
> Calibrate the actual ( physical ) channel you're going to use for making measurements .
> I prefer to include the mic pre-amp in the sound-card calibration ( since mic pre-amps are typically not as extended in response as line inputs ) .
> Just remember to turn off the phantom power when making this connection ( RCAm to XLRm ) .

:sn:
 
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