There are $40 DVD players that have internal DACs of sufficient quality to
fully exploit the sound quality of any commercial CD.

Sure, in that it will play one, through a stereo. (BTW: "exploit" is
almost never indicative of something good).

But to help answer the question... it is perhaps unlikely (maybe even
very unlikely) that you will note a significant difference between the
MSB and the Rega DACs. They are both well made pieces. However, either
will sound the same as the $40 DVD player through $50 radio shack
speakers but, either will sound far better than the $40 DVD through
speakers of ascending quality. The same applies for a power source.

Also when looking at reviews, ignore all the gushing and pay attention
to the stuff the reviewer compared it to, e.g., a $1000 CD player
compared with $500 to $1500 equipment versus a $350 DAC matched up
against "high end" stuff ranging up to $2000 - $3000, I think thats a
real review...

J-