Anyone out there know of a computer program that I can use to test an external DAC of my own design? USB to S/PDIF adapter? Individual frequencies for harmonic distortion tests. Sweeps for flatness tests. Multiple frequencies for I.M. distortion tests. Variable amplitude outputs for linearity tests.

I posted earlier about this Melos preamp. I now have it on my bench (not working) and it seems to be missing a part, possibly a power regulator. Does anyone out there own an MA-111 that would be willing to pop the top and ID the part? Let me know and I'll send you a photo of the board.

I've just come into possession of a beautiful pair of PSB Image 4T speakers. Its a long story but they were shipped via UPS Ground in a pretty sketchily packed box and, surprise surprise, I now have a problem.

On one of the speakers, the mid-range speaker seems to be damaged. The sound from that one mid-range speaker is very bad. I guess I have to replace it or get it fixed. The problem is that I don't really know where to start on this project: where to look, what to expect to pay, etc.

I would greatly appreciate any help.

Best,

Aktrop

Quote:

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Selective insanity, each nutcase has their own thing that is their reality, if one nuts reality doesn't corospond with NUTCASE B then it's nutty...

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For the record:
I've read every single one of your many posts, and this, more than ever, sounds as though you're describing yourself, DUP.