20/20 ,, 90/90 running in mono?/

[lennyx]

asking again, can I use the pa in mono with 1 cab? will it damage the amp, i know the boogie manual and a tech said u need to have a load on both sides

thanks

 

[JJNH]

I just came to ask this exact question, except about the 295.. can I run one channel if the other channel is on standby with no input or output connected?

 

[crane]

On the 20/20, 50/50, 2:50 and 2:90 you can run just one channel if you keep the volume down on the unused channel, and presence all the way up.
I've used my 50/50 for years like that without any pb.
By the way I've read a lot on a french forum that reports pb with the 20/20 used this way...