Hi All!
I have a pair of high voltage boards from a pair of Martin Logan Ascent loudspeakers for sale.
(Original Ascents not the Ascent i fyi.)
One board works, one doesn't.
I haven't investigated why one is bad I just paid the price for a pair of new boards from Martin Logan and moved on.
No...
I didn't measure them but could hear they were down as they sounded dull at the top.
Now they have speed and detail again and yes seem to be balanced with the bass again.
Sounds like it is possible the high voltage board has failed.
One can swap back panels to verify.
If this is the case then the board will need rebuilding/repair or replacement...about 380 bucks last I checked.
Martin Logan support was great help when I needed them.
I just did this with a pair of Ascents (original foam type standoffs not clear spar fyi).
I removed the panels and used wooden clothes pins all along the edges of the panels to hold them tight together to prevent slipping.
I went the Simple green route, placed both panels upside down on a towel...
Hi All
My Martin Logan journey began a few months ago by my picking up a used pair of Ascents.
I had to replace a high voltage board to get one going and was enjoying them.
Now a few days ago I was able to pick up a nice unmolested pair of Requests...WOW!
What a great loudspeaker!
Very pleased...
OK going thru these I determined the transformer on the high voltage board was bad but ML wouldn't sell me the part so I had to bite the bullet and buy a new board. Installed it and we have our loudspeakers function back.
Sounds great!
I appreciate the help.
I'm going to see if I have voltage to the esl panel at the quick connectors and go from there.
It's easier to have a look there first without opening the back up again but I suspect I will be there checking output at t1 as the next step depending what I find.
If it shows...