Rogue mb 120's ground lift & triode question

a tremendous help, thanks fellas! Greg

You need to remove the cover on the older Rogue amps...pull the large tubes and remove 10 screws to remove the cover. Someone did not have their thinking cap on.

Dave

Earlier model 120s did not have external switches. Call Rogue to get details. Not difficult to do. Triode switch you can do witout taking off the top. Liftng the ground will require more work.

Hello Gelmhirst,

Rogue originally placed those switches inside the chassis. It was only on the later production runs that the switches were placed on the back panel of the monoblocks.

According to an old "Stereophile" review of the M-120's, you have to remove the 6550 tubes in order to access the ultralinear/triode switches.

http://stereophile.com/tubepoweramps/735/index1.html

Hope this helps,
Jeff