I have a Zapco Reference 650. It was made in 2002 and is in great condition. Im very happy with it. It's only drawback is its size. Its too big for my car. I basically want to get a rough idea on its value first because I wanna know if I got b0ned on it and second to possibly sell or trade it. Its running all the speakers in my set up, see signature. Thanks in advance for any help guys.