oooooooo

[Max]

Because xmas draweth near:

Two of my all time personal favorites in regard of "Dumble" tones. No kidding!:

http://www.youtube.com/watch?v=FdiUmFiVY4k

and

http://www.youtube.com/watch?v=F7u77WFk ... re=related

Good luck on all your roads!

Max

[llemtt]

.. Anyone know what it is in a Dumble circuit that makes it do that? ..

not sure because I can't understand why but I think the NFB loop on V1b has something to do with it

IIRC your e.pro did the straining/phasing with the NFB engaged, and the e.pro has the higher amount of NFB applied (a 22Meg resistor)

it would be interesting to know what's in your current Dumble and in the ultrasound Tan one, although I believe it's the "standard" value (40Meg)

on the contrary the low-mid thing to me is something more related to the poweramp section

cheers
teo

[Funkalicousgroove]

I can tell you for fact that the Ultrasound amp is a Pretty Straight forward Low Plate Skyline with the standard 20M/.05/20M feedback, what makes it different is the Music Man Iron running almost 700V on the plates

[butwhatif]

i've never found the fb circuit to make sfd--- only for the 'historically correct' how u pick the sting is a waay bigger thing altogether