need help for bridge or symmetric amp

[pacificblue]

Originally posted by hobby1
"In theory, less components means more sound quality" that's where y wanna go

Then don't go bridged. 50% less components should be hard to beat.

Originally posted by hobby1
it maybe better to approach a "perfect"match of the 2 part of the bridge
isn't it?

"Maybe" means you don't know, if it has any audible effect at all. If you use 0,1% matched resistors, may I assume that you will also use 0,1% matched DC blocking capacitors? And 0,1% matched loudspeakers? Because if you don't, resistor matching is a waste of time and money.

[hobby1]

thanks for reply,

first i had to say that,i make this choice because my idea is to keep the symmetry of the signal all along the analog line , with a minimun of components on the travel ,something simple but qualitative, and 4 resistor with low tolerance to set gain and current around the chip is a qualitative way,and i can have them easily
that said, on the simple schema above what i got to add to improve quality?

cheer

[hobby1]

i have find what i was looking for
GC SuperSymmetry

some explanations about symmetric signal...
http://www.passdiy.com/pdf/articles/susy.pdf
http://www.passdiy.com/pdf/balzenpre.pdf


cheer

[hobby1]

it 's not as simple as y hope ,but it seems to be the price to pay...
perhaps,someone know a simpliest approach,a compromise between the minimalist schema i propose and the N Pass schema ?
thanks for all!