I'm the original owner of this wonderful DAC, its overall condition is excellent. The plastic cover from the top was removed only to take these pictures.
The only problem with the Perfect Wave or the Direct Stream is that the bottom of the chasis where all the circuit boards are attached is so thin and weak that is prone to ring like a bell, and if you know about vibration, that is not good for the reproduction of music. "Lastly, weight and construction techniques matter. Any piece of stereo equipment in the same room as the speakers risks contributing to sonic degradation if it’s too light or flimsy. Yes, there’s some merit to audio-by-the-pound. Chassis with too little mass act as microphones that pickup what the loudspeakers broadcast. This is one reason isolation bases and weights help sound quality. Chassis matter, and can be a contributing factor to sound quality, both good and bad." Paul McGowan (July 2015) In this particular unit the bottom chasis has been reinforced internally with anti-vibration composite aluminum sheet. Also the transformer inside the DAC , source of noise, has been isolated from the unit itself by fastening it in its own composite aluminum sheet, then floating it on very soft rubber feet (see pictures.) When I got the unit back, I couldn't believe the improvements of the sound, the presentation was a lot quieter and bigger but most of all, it was a lot more natural. This is a one of a kind DAC, this unit sounds a lot better than a regular Mark II. The $800.00 upgrade is my lost is your gain. The "Bridge I" is already installed in this unit and allow you to stream music via an Ethernet wire. This interface is flawless. To my ears this set up sounded better than with the memory player. Once again this unit is in great shape. You can buy with confidence. Buyer pays shipping. Please add 3% if you opt for PayPal.