Hello,
They are both outsatnding CD players and they both sound great.
I personally prefer the 840c, plus it has balanced outputs.
The Apollo has a warmer, alittle richer, and slightly more laid-back presentation. The Apollo does have a slightly wider soundstage.
The Cambridge is alittle more open, detailed, and dynamic than the Apollo, clearer on vocals, and has alittle better top-end extension, but not a huge difference.
The Apollo can become rather "slashy" in the treble with harsher recorded CD's, and the 840c does not.
They both require 200 + hours of burn-in to sound their best.
There is still not a huge difference between the two.
I prefer the front loading of the 840c, as opposed to the top loading Apollo.
Hope this helps alittle.
They are both outsatnding CD players and they both sound great.
I personally prefer the 840c, plus it has balanced outputs.
The Apollo has a warmer, alittle richer, and slightly more laid-back presentation. The Apollo does have a slightly wider soundstage.
The Cambridge is alittle more open, detailed, and dynamic than the Apollo, clearer on vocals, and has alittle better top-end extension, but not a huge difference.
The Apollo can become rather "slashy" in the treble with harsher recorded CD's, and the 840c does not.
They both require 200 + hours of burn-in to sound their best.
There is still not a huge difference between the two.
I prefer the front loading of the 840c, as opposed to the top loading Apollo.
Hope this helps alittle.