i got my au2200 off e-bay .it was a bit of a fuzzy photo but the seller told me it was in good condition.got it for £10 plus p&p.took him 2 weeks to post it .when it arrived it was in a box in a supermarket carrier bag surrounded by paper no bubble wrap nothing.when i got it out of the bag and inspected it for dents .which there where non i was confronted with the grubbiest looking amp i have ever seen.looked like it had never been cleaned in 30 years.i pluged it in and the power light came on.good sign.took me 2 hours to clean the amp front and rear.i then wired it to my speakers and pluged in the cd player put the volume to 2 and powered up pressed play.i was then blown away by the sound from the old little amp.put the volume up a bit.and was amazed by the sound its all middle so warm.not to everyones taste but i love it.its booked in for a service on monday.i had a look under the lid and it seemed very clean.its the best £10 i have ever spent.ill let you know how i get on after the service .[]