Hi Richard, I have listened at some length to Continuum S2 and Capri S2
And have heard comparative opinions of Continuum S2 with M525 from people that I respect who have considerable Rowland experience.
Continuum S2 is based on the Pascal M2Pro module, which is a higher end module than the S2Pro used in M525
And the audible results, for all that have listened to them, are quite in evidence
Continuum S2 is extremely textured and marvelously nuanced. By contrast, all comparative findings that I have heard from people in the know, is that M525, while excellent at its price point, might be a little more matter-of-fact and less emotionally involving than Continuum S2.
Continuum S2 delivers 400W with a peak current of 38 Amps
. It will drive anything you throw at it, except some uber-large speakers
. A pair of M525 bridged to mono ops might give you a smidjin more authority than Continuum S2
. At the cost of some subtlety and musicality.
Capri S2 and Continuum S2 share the same/identical preamplification circuit
There is no difference
And yes, Capri S2 is a wonderful preamplifier
I have heard it, and really like it. It is more textured and nuanced than the original, its bass is more complete, harmonically structured, and treble has greater delicacy than the original.
The question is rather.... If you have a single source... The Pricasti M1 DAC, you might not need a preamplifier at all. These days, if you have a really good DAC with high quality variable analog output, a preamplifier justifies itself mostly for system management in a system with a combination of digital and analog sources.
On the other hand, upgrading the power amplifier or adding a line stage are not the only way with which your system can enhance its performance very significantly. Yes, there are speakers of course, and then there is cabling, which can make a world of difference.... What wires and PCs are you using today?
Guido