Where would be a good place to buy& sell used audio equipment?

because of high price of repair if sent to B&W consider sending to a tech --or simply bringing it in.. This highly depends on where you live and be careful of businesses that over charge.   Frankly,  resale for parts best bet is ebay because of such a huge buyer base--but you will spend listing fees and final fee is at least 10% of final cost ..  I would check for local tech .  If you live in southern Cali I can recommend a very good shop and while he has gone up a bit in price he is very reasonable to the extent that I ship to him from northern Cali --

Try FaceBook Marketplace for local sale. I used to use Craigslist a lot with some success. Marketplace seems to be what everyone is using these days and I have sold things much quicker. 
One thing if you dont have facebook they wont give you marketplace right away till you use facebook a while "puke". So i gave up and just post on my wife's account. 

I used eBay to sell a pair of JBL L110's - you just state in your listing that it is for pickup, no delivery, and cash when picked up. That way you dont have to deal with PayPal fees but you do get the exposure of ebays reach.

i would try all the options above .since it's not working it will be a very hard sale so id'e ask like 100$-200$ plus shipping cost .sounds funny but it won't waste your time and energy that much .make it a no brainer for the b&w fans. i have two pairs of b&w speakers one is british made from the 90's and still sounds amazing, i picked it for 300$ used from a store.

Too much $$

Why not send it to B&W to get fixed?

Thanks guys

Not here! Craigslist maybe???

You may try a local Craigslist that way you won't have to ship and the buyer will know exactly what they are getting.

Ebay is a good option.

Second Audiomart but also StereoNet but maybe USA doesn't have a StereoNet

USAudiomart is another option and no fees.  

Do we still need a merchant/business number to use paypal here?

Click on Explore in the top banner and within that topic click on Need Help.

uuuuuuummmmmmmmm, AudiogoN