Hi guys. I have a dsl15c I've had for a year now. Liked the amp right at the store off the bat(went in to buy an origin 20 and walked out with this) Though i wanted less gain and less hashy treble. I converted the ultra channel to OD1 and also swapped the bright cap from 470p to 100p....then raised the cathode resistor value on v1b and man there's some jcm800 stuff happening now....me likey allot. Also rolled some tubes But ended up only changing v1.But I still feel the speaker could be a bit better. I thought g12h30 as I like those....but don't really want the added sensitivity as I am able to gig/record at the mv sweet spot with the stock speaker. Any recommendations for a little smoother classic rockish m magnet speaker??? Gotta say I think this lil amp with the typical online mods is a serious tone machine worthy some recognition.I use mine as a single channel keeping the classic channels gain and vol off...as with all 2ch amps(I've used) there is a slight bleed through. Oh yea and turn the verb off as it seems to add harshness....dont like the verb.