Help replacing 8" woofer on Gershman Avant Garde Rx-20

and let me add, my cone is making a classic buzzing sound so might be repair-able?  I checked back and Gershman fixed one before, many years ago.  does anyone know a reputable repair person I could possibly send my driver to?  

lastly, going past 50% shouldn't do any damage, especially as the amp wasn't clipping and is rated for these speakers.  second time this has happened.  kind of  a drag.  

Will do and agreed, they’ve been very helpful in the past.  Not sure I agree on your assessment.  50% volume might be driving the output to 70% power, but don’t believe it’s possible that it could be 100% at 12 o’clock.  Amp should clip way before full power output.  

Jerry,

thanks for writing.  Curious what makes you say that regarding the reflection on the amplifier?  This amplifier

was recommended to me by Gershman, a Simaudio 340i.  It’s very capable.  
 

how does one check the crossovers?

I’ve sent my woofer to Bill LeGall at Millersound. @testpilot Gershman no longer had parts for the AG RX-20.  Once you hit 20 years of a particular speaker, even the big brands (I.e. B&W) likely won’t have replacement drivers.  Fingers crossed but I’m told Bill is the best in the business.  Will update once I know.  

For those of you who were nice enough to reply, update is Bill has already fixed my driver in less than 24 hours.  The voice coil worked loose and that was it.  Good as new.  I can't recommend Bill and the work he does more highly.  The guy is a gem and probably one of the only people on the planet who does what he does.  Truly unbelievable.  We who spend lots of money on this hobby don't have enough honest brokers to rely on.  Bill is one.  If you ever need a repair on your speaker, give him a holler.  You won't regret it.  

and thanks @bache for offering.  next time I'm in Brooklyn I intend to look you up and come over for a listen.  

@acresverde i was hesitant to call him because of that being explicit on the website.  He asked me to send a photo of the driver and based on that he felt confident it looked very similar to one he does work on and could fix it.  Turned out my issue was a simple fix but he was prepared to do the work.  I would just call him.  You might be pleasantly surprised like I was.