Refurbishing Avalon Ascent Mk 2


After 25 years of service my Avalon Ascent Mk 2 have started to distort especially with classical piano.  I have isolated the problem to both 2" aluminium-manganese mid drivers.  These, I believe, were built by MB Quart of Germany, now out of business and the part seems unavailable.

I would greatly appreciate any suggestions on how I could bring back these speakers to their former glory. Thanks.

franzschubert
Hi Franz...

So the first obvious question is, have you reached out to Avalon? They may have replacements for you in stock.

Next, I don't hear about midranges going out very often. Double check to make sure it's not a crossover thing. Examine the crossover for two possible items:

1 - Burnt resistors
2 - Electrolytic caps (anywhere).

Replace either.

Best,

Erik
Erik has a great point.  I assumed that was done and no remedy was available.
Avalon seem to have no interest in supporting legacy systems they are a different company from the Charlie Hansen days but I can try again.

The crossovers are separate, potted in 50 pounds of epoxy so there is no access to individual components.