I purchased this unit in a pre-owned condition several years ago, and I still consider it as one of my favorite AMPs. It was the only AMP that I continued to use before I switched to a Stat set up. Although there are some marks on the exterior of the amplifier, it is in perfect working condition. It can still drive any demanding headphones to incredibly loud levels without being harsh or bright. The price includes shipping only, and the original boxes are not available. Please feel free to ask me any questions you may have.