AW: Differential Reverb (better subject line!)

[Haible Juergen]

	>Better drivers might be better, but several folks have pointed out 
	>already that the Hot Springs is a pretty incredible little reverb
and 
	>who's to say that some of the magic doesn't come from the driving 
	>properties of the op-amps :-)

In my EMS Synthi Clone, I have used an LM380 (with feedback
for high output impedance) to drive the reverb tank. At high
input levels, the "sproing" noises increase dramatically, so
maybe one doesn't loose that much with a limited input power.
But with this dual reverb tank trick, these noises should partially
cancel each other, so higher drive levels might be even more
interesting (?). Haven't tried it, but it seems reasonable ...

JH.