Check the listing for details. DynaKit ST70 - STEREO TUBE AMPLIFIER. Condition: Used, Made in United States. Listed at 1000.00 USD. I am the original purchaser of this amp in 1967. I was in the army and stationed on the Presidio of San Francisco when I bought it. I used it about ten years in my home then put in my storage unit until today. It weighs 27 pounds. Tube GZ34 is faulty and will need to be replaced by buyer. The amp goes on and the tubes glow red when I turn it on. When I put it in storage it was working. I always kept it because it had a warm sound, less digital, but it was heavy to move. I was a classical musician and mostly listened to classical music but as time went on I bought a stereo set that could take CD's and eventually, like so many, mostly on line now. But I don't have the setting or the knowledge for large speakers and amp. I hope someone does.