to stop:<p>about the centering. i thought a while about it. are you using a soundcard for output?
the filters of normal soundcards will do that, if i remember my tests with soundcards right. thats why ff wants to make his card dc proof.
bad thing about it is that you'll need to use a soldering ...

hi,<p>about driver delays:
driver delays are given in samples; here's how i calculated them for the lc1.
44100 Samples = 1 s
44 Samples = 1 ms
1 Sample = 22,67 µs
66 Samples = 1,52 ms
(specs: for 40° not less than 1ms)
55 Samples = 1,26 ms
(double the value for 5°)
30 Samples = 0,69 ms ...