A DAC to beat NAD C541i?


I've had NAD for about 6 years. It used to be a good one 6 years ago in my system, but now I think it is a bottle neck in my current system -- Tyler Taylo 7U, Linn AV5105 amp, Rogue Magnum 99 preamp.
My friend brought his Rega Apollo CD player and compared it with my NAD on my system, but I did not hear much difference, except Apollo sound a little bit more warm. But I liked NAD's more bright sound.
If Apollo is a real good one at $1000, I guess I need to spend over $2000 for a new CDP to for better sound.
Instead, if I want to go for DAC with NAD, which DAC (at $500~1000) would be best to beat both Apollo and NAD?
Which CD player (used at $500~1000) would be far better than Apollo or NAD?
Thx
128x128ihcho
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The cable is 1m. Any reason why it has to be 1.5m? I've been looking for a new digital cable and will try one with 1.5m.
C541i alone sounds a little bigger than C541i+Paradisea. Yes, I felt a tad bit more dynamics with C541i. But the bigger difference is the warmth -- with paradisea it sound a bit warmer. Same feeling I had when I compared C541i with Rega Apollo which sound a bit warmer than C541i.
C541i alone sound more bright, and at full orchestration it sound a tad bit more muddy than with paradisea.

Anyway I like DR700 better than C541i or C541i+Paradisea. I wanted to use DR700 exclusively as a CD recorder, but if the paradisea does not open up with cable change or tube change, I may stick to DR700 and forget about DAC for a while. I guess my tube preamp (Rogue Magnum 99) is doing an excellent job in pulling all strengths from SS CD player, so I may not feel much difference unless I go for much higher upgrade.

Many thanks for wonderful tips.
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Any SS DAC would better impedance match with bigger sound, better bass and treble extension? Then probably I would give another shot. Any suggestion?
I would expect the similar amount of improvement from Grado gold to AT150mlx. LOL