The older parts of this were put together gradually and then a flurry of upgrades led to this final, wonderful sounding incarnation. I also use a tuner, cassette, DAT, occassionally lp's with an old B&O turntable and some synthesizers through a mixer. However for real music listening this system with plain old redbook CDs is far closer to being in the concert hall than I ever thought to get at home. I am quite new to anything this high-end (in my own system anyway) so comments and suggestions would be very welcome.