The fact that the subwoofers don't carry the interference would suggest that
the signal originates in the amp rather than the speaker leads. The amp has a
lowpass filter to the subwoofer leads that would (should) do a good job at
eliminating the RFI, while the subwoofers would (should) still reproduce the
offending audio. My money is on the AC line filtering to the amplifier to cure
the interference.
--
73 de KK1L ex N1PBT...ron (rrossi@btv.ibm.com) <><
Ron Rossi H/P SRAM Engineering -- IBM Microelectronics
QTH: Swanton, Vermont
--
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
Search: http://www.contesting.com/km9p/search
|