Best place to sell high end audio equipment?

I messaged The Music Room about a couple of pieces.  All are mint, have remote and manual but no packaging:

Yamaha AS3000
Yamaha CDS3000
Yamaha CDS2100

They offered me $3,800 total ($1,700 for AS3000, $1,300 for cds3000 and $800 for the cds2100).  I know lowrider57 said their first offer is usually a lowball but not sure how much room I've got here for negotiation or if I should look elsewhere.  Any thoughts?

Take the money and run asap!!

"Any thoughts?" You’re clearly looking for a higher bid, sans paying a commission, by listing the items in a forum. Be honest and try an auction, here: https://www.audiogon.com/new_listing/type

@colinmaken I don't know if that's a good offer, but it's based on supply and demand. They're thinking about how fast they will be able to turn around and sell your gear.
   That Yamaha 3000 is a very nice amp. You may be able to easily sell it on an auction site, but have trouble selling the other items. Take this into consideration with TMR's offer, plus there's no commission or fees. You could counter offer saying you want $4000.

Rodman99999, I am not trying to solicit someone to buy via the thread to avoid commissions.  Paying a commission doesn't bother me at all.  Really all I was looking for was some thoughts on how much wiggle room there was with the Music Room. To me, a "lowball" offer could be anything.   I know some resellers only offer half of what they are actually willing to pay and I don't want to leave money on the table.  It's not about the models I have, its about insight into their willingness to bargain.