If someone is interested.
Mine is also for sale. A mk4 with BV9 speakers and amplifiers.
More accurate sound isn't hardly possible.
Has the rare DVI, Component and VGA inputs for HD video with digital audio input.
Some pictures are here:
http://forum.beoworld.org/forums/p/33304/272235.aspx#272235 and here
http://forum.beoworld.org/forums/p/32124/260614.aspx#260614