My Beolab 8000 system has the Beomaster 8000, Beocord 9000, Beogram 8002 and CDX with Beovox M150 speakers + remote.
Everything got together around march 2008 and finished in june so currently everything is in great working order. It sounds great and acurate with monitor M150 speakers. Every unit is as strong as the other and sounds are pretty even. Yes a well recorded tape can sound as good as the Beogram 8002. It does not matter it does great. Volume is straight and clear regardless of the setting.

The glass has a some scratches and a button was broken. Electronic gone through so 100% in order for some time forward.
One day in november 2007 there was white Beosystem 6000 on Lauritz.com and I could not resist so I got it. To keep it short the system is now complete and fully working exept the Beocord. The system consist of: Beomaster 6000, Beocord 6000 and Beogram 6006 with Beovox S80.2 and S120 + remote.

Now I have a hard time deciding which system is better. What I have come down to is with S80.2 and S120 the sound is 98% the same as the Beolab 8000 system. As the systems are in the same room I can a-b them and if I try radio channels I can't tell a difference.
Just the other day I listen too Master of Puppets by Metallica on 180 gram reissue vinyl through Beogram 8002. I then took the record and played it on the 6006 which again gave the actual same impact. I'm a musician so my ears can tell if tones are changing or are different.
I have tried the Beovox M150 with the white Beomaster 6000 and the difference is not that big with a Beomaster 8000 if there is anything at all.
S80.2 and S120 works brilliant together. S120 is louder but owerall they handle sound just as well as the M150. S120 on it's own close to M150 and S80.2 alone needs more power directly compared to the M150.
Every B&O item is serviced by Dillen exept Beovox M150 and Beocord 6000(it's going to soon). The Beovox S recently rebuild.

S80.2 in the front row. While being rebuild the S120 were for sale near Dillen so I got them rebuild too. A sucker for white?
At the moment I stick with both systems. The sound depends on the Beovox much more than the Beomaster in this case and at low volume it's more the question of what design you like the most. Me? I dig white, the timer functions, the smaller size and the fact that I own it in greater condition than the Beolab 8000 system. They perform identical but I can't say WOW to the 8000 and asume that the 6000 can't do the same.