Type: Posts; User: mwc951
Yes, pitdogg...you were right...I was wrong.
Following another senior member's advice, I called Adcom CS to verify, they told me the opposite.
I checked with a meter and thought all is well.
When I say "open"...I mean the needle on my old school meter went to "0".
I ASSumed this is what supposed to happen to show continuity.
I get the same result when I checked my CJ MV-75a1, which...
Unplugged the amp. Checked negative outputs for continuity. Showed open.
Awful "horn" noise and immediately shut down the amp.
Smoke rolled from the cones of the mid bass drivers.
I was so...
So I verified the 5800 is common ground, both with a meter and through Adcom CS.
Hooked it up to the SDA's this weekend.
THE ADCOM GFA-5800 IS NOT A COMMON GROUND AMP!!!
I called Adcom today about my GFA-5800 powering (new to me) SDA-2a's.
Adcom tech service looked at the schematic and said it was common ground?!
Adcom tells me the GFA-5800 IS A common ground amp.
I will attempt to verify with a volt meter tonite.
Thanks very much for the assistance!
Appears I have not searched enough!
Adcom is not common ground.
If I believe what I read, might not be as simple as an output ground jumper.
Yesterday I scored a pair of SDA-2a's for sale on CL.
Fantastic deal after a bit of low balling, the grills have some stains, but overall nice condition, 7/10.
I think they are "A"s...Two...
Email sent with offer on the CT-600
Email sent on the CT-600