ARC LS2 gain reduction

Does anyone know how I can reduce the gain of my LS2. I know that an optional gain reduction of 9 db was claimed by Audio Research.
Thanks

audiouf12-05-2005 1:59pm

audiotomb Details Discussions Posts This discussion Message User 1,112 posts 12-05-2005 at 07:10pm Copy Comment URL Report Comment Edit Delete I had the LS2 - don't recall gain reduction perhaps that was a fuse you wired into it the LS5 does have a gain reduction switch call Arc and they will help you out Tom
salectric Details Discussions Posts This discussion Message User 747 posts 12-05-2005 at 10:46pm Copy Comment URL Report Comment Edit Delete Contact ARC. A few years ago they sent me a fax with instructions. As I recall, it involved replacing one or two resistors per channel. So you need some soldering skills. I never made the change because the instructions said that the lower gain resulted in a deterioration of sound quality. Dave
marakanetz Details Discussions Posts This discussion Message User 5,473 posts 12-06-2005 at 11:22am Copy Comment URL Report Comment Edit Delete ls2 is set to be stable at a certain gain deviation of such may result the circuit instability upto self-oscillations. you may decrease the gain decreasing the values of the feedback resistors of an output stage or make it unity when you short the feedback path(using jumper instead)... the DC supply may need to be revised for each feedback level used which dictates basically total circuitry redesign.