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TMB affects BOTH channels??
Posted: Sat 03/22/08 6:19 pm
by glp
I have a recent 36 watt build in which the TMB tone controls also affect the first channel tone?? I don't get it as I see nothing wrong....
also the BASS control seems to do absolutely nothing??
Anyone run into this?
Appreciate any thoughts,
Posted: Sat 03/22/08 9:13 pm
by rjgtr
There is a version of the 36watt that sends the normal channel through the TMB tone stack as well. Try centering the normal tone control and recheck the bass. Many people find the normal Marshall style bass pot doesn't do anything past 3 or 4. I personally tend to use a 250k pot for bass.
Posted: Sat 03/22/08 11:16 pm
by myker
yeah, thats the one. it was one of richies first 36 watt layouts i believe. lucky for me the customer really liked it that way??? the bass control thing is typical marshall, none of the eq knobs really do a whole lot.
mike
TMB affects both channels
Posted: Mon 03/24/08 1:05 pm
by glp
I used the 36 watt V2 layout......
Does that one run the TMB on both channels?
It's not a big deal, but I'd like to NOT...... as my customer brought it up as an "issue".....
Posted: Mon 03/24/08 1:21 pm
by Plexi
If you look at the later layout.. that amp has a pull pot that lifts the TMB stack. Both channel share the TMB, but it can be lifted,and long as the volume is down on the other channel,and your not bridging on the inputs..Its back to one channel.
Having the TMB and tone control,it offers much more sound options. The 36 watter, is basicly a marshall type amp, that for the one channel has a tone control. You could also put in a switch presence pot,in place of the set switch.. so you could use presence control [NFB] or have it out.
You could also remove the channels from sharing the TMB by not having them go into the V2 together.. and join them over on the PI, but they would be out of phase that way.