Best place to sell an amp.

I’ve had good experiences on US Audio Mart. Highly recommended.

And give Audiogon another try. Don’t get involved with any buyers trying to lowball you.

How do you get "beat up " about the price ?
You list your item for a price . you check the box to accept offers or not . If you do accept offers, then the buyer makes an offer.. you either accept ,decline or counteroffer. Most people decide before they list what there lowest price that they will sell for , or at least have it in mind. If you do not like what they want to pay ,then you can ignore them or tell them what you will take...??

There’s beat up and there’s reasonable offers. You can’t let offers offend you. Politely decline. When it’s the half eaten sandwich and uncle Becky’s boxer shorts in trade, is when it gets annoying. Build in your haggle price to acceptable sale price and say open to offers. Most want the illusion of a deal even if it was a fair price. Be ok with the lowball offer. Just chuckle and enjoy the no. 

@viridian I second CL.  Nothing beats having someone see and hear what you are selling.  No disappointments, no trickery, cash into your hand.