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Audio-Technica CP8201 Line Matching Transformer
Could this device be used to plug into an aux send output and sent on a balanced line to a subwoofer?
See destination amp below. Right now I am converting the 1/4" output to RCA and sending it ~40ft to the sub. Picking up a little hum. I realize it will need to be converted at the sub end too. Any suggestions about that would be appreciated...
While it may work, this isn't the best solution and may still have related problems.You would be better off using a higher quality, shielded cable to the sub and if the hum is still present, add a ground loop isolator. This combination will help reject some of the external noise on the wire and the ground loop isolator will couple the signal to the amp without a mechanical connection for interference to pass.I have used part#265-012 in multiple installs and it is a permanent part of my kit for many years.If you are looking for a longer run then most installers use inexpensive CAT-5 and a set of passive audio baluns ( or even passive video baluns will work). Between the CAT-5, which is twisted pair and the balun would provide noise rejection as well.
Date published: 2012-05-08