This is an Ovation Super Adamas 1687-9. The label has Mr. Kaman's signature. It's a sign that it passed inspection after being test-played individually. I used it as an acoustic guitar. The strings are deteriorated. Comes with a hard case. Please understand that I cannot ship to Okinawa (remote island). Batteries are not included. The preamp is OP-24. I may not be able to answer detailed questions. I have confirmed that sound comes out when connected to an amplifier by someone in the music industry. Please refrain from purchasing if you are concerned about minor details.