As noted above, I suggest you contact The Music Room.
Instructions for how to sell to The Music Room
Sometimes The Music Room will pay you cash for the product and other times they will take the equipment on consignment. In any case, once you agree on the terms, they will send you a Federal Express label so you can ship the product to them. If you do not have the original boxes, they can help you will replacement packing boxes. They are very easy to deal with and very helpful. I have both sold and purchased products from The Music Room and highly recommend them.
They recently paid me cash for an amplifier I had and the 2nd amplifier is on consignment at The Music Room.