Mark Levinson 20.6 Monaural power amplifiers

These Mark Levinson mono blocks were purchased in 1992 from Precision Audio, a former Mark Levinson authorized dealer in San Juan, Puerto Rico. The units were purchased as Mark Levinson model 20.5 and subsequently upgraded to 20.6, including plates. I still have the original 20.5 plates with me. I may ship the 20.5 plates at an additional shipping charge upon request.I have been the only owner of these units since then. These amplifiers were inspected and tested by Precision audio on January 25,2012. As indicated on the letter included with the photos, the units with serial numbers 833 and 834 were found cosmetically and electronically in good working conditions. The amplifiers have no dents but some small scratches in the front handle and nearby areas as shown in photos. The amplifiers include one original box, speaker connectors (4), A/C cables (2) and upgrade manual. The other box needed to ship the second amplifier will be custom made to the amplifier specifications. The cost of the packaging material will be paid by the purchaser and will be included as part of the handling charges anticipated to be $250.00. The units will be shipped via UPS air at an additional charge payable by the purchaser in accordance with shipping destination. An estimate of the shipping cost may be provided in advance in accordance with the shipping destination requested. The payment has to be made via pay-pal. Specs.: Output: 100W into 8 Ohm, 200W into 4 Ohm, 400W into 2 Ohm. Amp dimensions: 17.5"W x 8.4"H x 22.1" D Weight: 65 lbs. each, shipping weight 90 lbs. each. Original MSRP: $11,500 /pair plus upgrade $3,290 /pair. You may to reffer to Stereophile website www.stereophile.com for a review of these great amps. The unit will be sold as-is. No returns will be allowed.