Using midboost and PAB together has zero effect with a 22M stack lift.
Tonegeek wrote:+1 on the footswitched mid boost. If I had to choose 1, I would take the mid boost over the PAB. My mid boost is a little tamer than the real deal though (1.82n vs 2n). In combination with PAB it has the effect of providing degrees of boost more so than changing the EQ. I find the mid boost is a little smoother sounding than the PAB, except that when both are on it is rock city!Normster wrote:Welcome back to the dark side, Gil.
I find that I like having the bright switch on for both clean and OD, but it gets harsh in PAB. The solution for me was to use two terminals of the PAB relay to switch out the bright switch in PAB mode. I also find it very useful to put the mid shift on a relay so it can be switched from the floor using a 3-button switch. The mid shift is a nice "in between" boost when in OD. Fattens up the OD but isn't quite as agressive as the mega boost.
I imagine you are sacrificing the switched bass wiper to do the bright switching. I tried a PAB/mid boost thing (labelled it PAMB) using one switch and it worked very well. I did not miss the slight drop in bass with this setup. It depends on how your bass is adjusted as to how much it will affect the tone when you don't switch the wiper. If it is up half way or so, you really don't notice that much. Its just when it is below half way that you start noticing a drop in bass response when switching only the bass to treble legs while still leaving the bass wiper connected. Still, doing the wiper too is the best way if you got the relays for it...
I forgot there is more to the circuit than just the PI changes I made on mine. So is "Mega boost" taken from the BM circuit? I have seen that term floating around for a while now. I tried lifting the stack on my Skyliner amp just for grins (bass and mid pot) but it was too much. Way back while the earth was still cooling I used to put a bigger mid pot value in Fender amps when I wanted more balls. It worked well at the time, but putting that stuff on relays is way better now.