How does an Overtone sound??? does it deliver fender cleans?

You gotta include the guitar and speakers in the answer to that question. Type of speaker has been discussed above, which leaves guitar and pickup to be described.

Guitar/pickup use
When I use a strat (fender 54'pickups) or a tele (Vintage RI 52' pickups), I use the neck or bridge pickup for lead and the middle positions (2 +4 on at strat, 2 on a tele) for the rythm sounds.

The middle postions are "scooped" whereas the neck/bridge are more mid boosted,  which help me create the sounds I need.

When I play rythm, I don't want the guitar compete with the singer voice or other bandmembers playin solos. The scooped middle positions heop me to take a step back in the sonic picture. Wise versa when engaging a solo I wish to fill in the space that the singer or soloist just obtained, the neck or bridge positions help me fill up a little more space.

This is how I do it, no matter what amp I play !

Overtone versus fender
When you buy an Overtone/dumble you're probably inspired by Robben Ford and wish to recreate the RF sounds. And the Overtone does indeed provide thaose sounds. However, I have seen RF playing in Copenhagen a number of times and often he don't even bring his Dumbles overseas, but play rental Fender twins plus a tubescreamer for solo. Fender amps (super, twin, deluxe, bandmaster etc) in general have scooped mids (like the middle positions on your guitar), which tend to lag a little middle for solo. The tubescreamer fills in the space by giving a pronounced midboost. So if you wnat real fender cleans and a RF/dumblesque OD tone use a twin with a tubescreamer

The Dumble/overtones on the other hand has much more middle - they're much more flat frequency wise and not scooped like fenders. Therefore, I find that in order to get a unmodified, regular Overtone to produce fender tones, you have to do engage the bright AND turn the middle down to 1-2 and use the clean channel.

I've experimented a lot with my Overtone to resolve this puzzle and have settled for the following modifications to give me both good (sort of fender) clean sounds and at the same time nice rounded OD tones:

- a 47pf on the (input) volume
- change the bright cap to 47 pf
- a 39pf on the master volume
- increase the snubbers to 2 x 470pf
- add a 2nf+470k trimmer across the OD ratio (od master vol), which lets you reduce the OD treble
- maybe add a 4,7M resistor and a 47nF capacitor to the input of the OD, just before the 220k

And use the following settings with a strat or tele:
Volume 7, bright off, mid off, rock on, treble 5, mid 5, bass 5, gain level 7, ratio 5, master any, prec 6,

And the following with a Les Paul
Volume 4, bright on, mid off, rock on, treble 6, mid 5, bass 4, gain level 5, ratio 5, master any, prec 7,

As I've said, you'll get both excellent cleans and very nice OD
- off course you have to adjust some of the od treble off on the cap/trim mounting on OD ratio control
- If the bottom end of the sounds gets too fuzzy in OD mode, you might add the Gill Ayan mod to the OD channel, which is adding a 4,7M resistor and a 47nF capacitor to the input of the OD, just before the 220k.

I use either a single 1x12" Celestion 12G65 or a 2x12" Celestion both with oval hole in the back.

IMHO this setup in combination with using your pickups as described above will provide great RF/Blues tones.

I don't think the assumption that everyone looking at buying a Dumble type amp are looking for a RF sound is accurate. I'd never heard of him until I stumbled on this place after researching the OTS. Personally I'm more interested in the tones created using Dumbles (and D-type amps) by SRV, John Mayer, Matt Schofield, Jo Bonamassa. RF never came into it.

Sorry, didn't mean to rant, just gets to me sometimes how into RF a lot of people on here are...

That said, thanks for the advice on mods to the OTS to tweak it closer to Blackface tones...

For the blusier side of D-style amps please check these links: