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In Reply to: running studio monitors from home audio preamp? posted by ocd on August 14, 2005 at 08:25:33:
Usually there's no problem driving an active monitor with an unbalanced signal, you just leave pin 3 from the XLR alone. (positive from the RCA to XLR pin 2 and ground to pin 1, nothing connected to pin 3)
But you better ask the monitor's manufacturer to be sure.
Follow Ups:
This is partially correct.RCA connectors carry a much lower line level signal than XLR (pro) line level. If you want to do it right, you need to find a "bump-up" box which converts the RCA to XLR signal.
To choose between the two, listen to both. But give the XLR-input speakers a fighting chance and feed them the same level.
Do most active studio monitors feature that signal boost (i.e mackie, dynaudio, genelec, etc...)? I have seen some "input sensitivity" switch or potentiometre on some models.
Anything considered professional (as with the brands you mention) will have some kind of input trim control. However, there is an inherent level difference AND an impedance mismatch between consumer & pro connections. This is why you need a bump up box to "do it right."
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