2. amps-preamps
  3. 129741-32

A technical question for this community

I have a second system that uses a true balanced stereo amplifier and have an M&K active subwoofer,  this setup currently is not being used in balanced mode. The amp instructions state you must use caution when using an active device like a sub because it may use a common ground which could cause damage to the amp. I want to use the high level inputs on this subwoofer via speaker wire "in and out". Will this create a problem and if so wouldn't the amp go into protection mode if the sub does have a common ground? M&K is no longer in business and I don't have an owners manual for it. Thanks for any input.
phd

Showing 1 response by sfall

sfall
346 posts
 
" On the other question, let me clarify, although the amp and preamp are a balanced design, it is not being used in balanced mode but just using the rca outputs of preamp to the rca inputs of the amp. I am not using the balanced feature of either the preamp or power amp. If this makes a difference. "

If everything is running in SE mode, you're OK. Use the RCA or speaker cable connections. As for the 2 prong PC, you just have to try it. If you get a hum, then deal with it. Most likely, you won't have any issues.
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