Not having compared the 2 units, I would just like to say this: I've heard a variety of Naim electronics and CDP's over the years, and have noticed that they seem to have more than 1 "house sound". So I wouldn't be tempted to spend the money sight unseen, as perhaps the CDX won't achieve the same balance in your system as does the CD5i2.
If you like what you have, you're best off to keep it...there's always something better out there, but if you don't have a particular aspect of the CDP's sound that you're trying to improve upon, you might find it difficult to spot the improvements that justify the added cost.
Used, of course, is a different story, because you take virtually no risk.
If you like what you have, you're best off to keep it...there's always something better out there, but if you don't have a particular aspect of the CDP's sound that you're trying to improve upon, you might find it difficult to spot the improvements that justify the added cost.
Used, of course, is a different story, because you take virtually no risk.