Phil Leigh;359933 Wrote: > Anyway, 187mV is too low for a CD or squeezebox. It will need an > attenuator in-line to avoid overloading the input stage IMHO, depending > on its gain staging and overload margin (headroom). An attenuator possibly makes sense in order to free up a decent amount of preamp volume control range, BUT...
The point I was originally trying to make is that even an amp with an "old-fashioned" input sensitivity around the 150mV mark should not be overloaded by the 2V signal that typically comes out of a CD player. rh2600 needs to perform a very simple experiment: 1. Set the Squeezebox volume to maximum (100), play a loud piece of music, and turn the Marantz's volume control up so you can hear the distortion. 2. Now turn the Marantz's volume control down. If the distortion disappears, it was either due to clipping in the Marantz's power amp section (nothing you can do - you need a more powerful amp), or it might even be due to overloading of the speakers (you need speakers with higher power handling). On the other hand if the distortion remains even at low listening levels, it's due to overload of the Marantz's input ciruitry. Try turning the Squeezebox's volume down - the distortion should go away. In this case, attenuators will fix the problem. -- cliveb Transporter -> ATC SCM100A ------------------------------------------------------------------------ cliveb's Profile: http://forums.slimdevices.com/member.php?userid=348 View this thread: http://forums.slimdevices.com/showthread.php?t=55023 _______________________________________________ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
