[pauly]

Hello all,


I'm testing my aksa100n and need advice.
My mains voltage last night was 122vac. My output offset voltage was {with fuses in place} .080v left and .040v right, both neg. with respect to earth.  
This morning my mains voltage dropped to 118vac and my readings were .057v left and .022v right, both neg. with respect to earth.
How do I adjust the value of R3 to reach a happy medium?
Thanks to you, Hugh, for your lightning speed replies but if I used your recommendations for the higher mains voltage, would it not be too low when the mains drops?



New to DIY and loving it.
Thanks
Paul

[AKSA]

Paul,

Add 4K7 to R3 for the 0.057V offset module, and 2K2 to the other.

That should do it, or very close.  You have to get it below about 30mV, no more is required.

You will notice the offset moves up and down with the mains fluctuations.  This is entirely normal, and there's not a driver in the market which can't cope, and it has no effect on sonics.  None whatever!

Breath easy!  You're home free.......

Cheers,

Hugh