seanadams;396704 Wrote: > The wall wart and/or AC power connections have nothing to do with it. > The problem is that the amp is placing no load on the input when it's > not selected, and this allows SB3's output to drift away from 0V. Then > later, when the connection is established, there is a thump while this > capacitor charges back to the correct bias. > > You can fix it by attaching some high-value (100K) resistor each of the > RCA signal lines. These could be connected inside the sb3, inside the > amp, or perhaps on the cables. > > Maybe we should have included these resistors on our end, but it seemed > to be industry practice not to. It is extremely unusual to have an > amp/receiver that does not have them.
I looked at the schematics of the amp and the line inputs go directly into balance control (after passing through the relay switch). these balance control are actually not in chain when centered. then the signal goes to volume board which is just two variable 30k resistors. so there are no resistors between the line and ground, i assume this is what you meant. could someone please explain why the sb output drifts from 0V without load? +-------------------------------------------------------------------+ |Filename: input2.pdf | |Download: http://forums.slimdevices.com/attachment.php?attachmentid=6965| +-------------------------------------------------------------------+ -- BiBer ------------------------------------------------------------------------ BiBer's Profile: http://forums.slimdevices.com/member.php?userid=24823 View this thread: http://forums.slimdevices.com/showthread.php?t=60122 _______________________________________________ discuss mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/discuss
