These are a great pair of 211M amps with both single ended and balanced input. These are a newer Version 2 pair with the newer speaker posts. The only flaw is some plastic peel coming off one emblem. So that you can see that these are newer, the serial #'s are 220471 and 220472.. I have had 3 different versions of the 211's and these sounded the best. I had the original which were switchabIe to give you upwards of 250wpc but they didn't sound as full as these. The 211M AE sounded similar but the soundstage was bigger in height and not as realistic. Only selling because just bought a pair of Wavac. I would prefer local pickup. I have owned SLM 200's, 805c's, 805ae's, and 211ae's these just sound the best. I don't have the original crates but I can get another set from Cary for $400 plus shipping I will order and the winning bidder must include in their payment 50% of the cost of crates if they are needed. I have listed a flat rate for shipping but will only charge for the actual cost of shipping, so if it is less I will only charge that cost. Also please include 3% paypal fee. All input and output tubes are by Shuguang and the driver 300b's are EH.