Im selling my Silk Audio MC100SE. I am the original owner. It is in like new condition. It comes with a full complement of tubes. The Silk Audio version of the Yaqin MC-100B has upgraded coupling capacitors and additional improvements to the transformers. It has always perform flawlessly for me, Im selling due to downsizing. Its in like new condition I would give it a 9 plus only because its not brand new. Local pickup is encouraged, however it is packed and ready for shipment in the factory double box and custom closed cell foam packaging that I received it in from Silk Audio. The weight with packaging is 62 lb. The following is some additional information from a web page: About the amp: MC-100SE is a Silk Audio only factory upgrade to the base Yaqin MC100b. If you are looking for a punchy tube amp with good power reserves, then look no further than the KT-88 based amplifiers. The MC-100B is essentially two KT-88B amps in one chassis, with its dual mono construction for maximum channel separation. User selectable Ultralinear and Triode modes and front panel power amplifier input mode makes this a very versatile amplifier. The MC-100SE incorporates Solen audiophile capacitors in critical signal paths and additional bypassing in the power supply. The result is more details and transparency along with a more dynamic presentation