FSarc,
While the DNA-500 and DNA-225 share some of the same heritage, the dual-differential topology of the DNA-500 is SO MUCH DIFFERENT than the DNA-125 and DNA-225 that we can not extrapolate that the DNA-255 is just a lower powered version of the DNA-500. The DNA-500 is a superb amplifier in it's own right and more than a few steps above the DNA-125 amd DNA-225. At $7000 a pop, we should expect so.
I don't think that even the modded 225 will touch a stock 500.
While the DNA-500 and DNA-225 share some of the same heritage, the dual-differential topology of the DNA-500 is SO MUCH DIFFERENT than the DNA-125 and DNA-225 that we can not extrapolate that the DNA-255 is just a lower powered version of the DNA-500. The DNA-500 is a superb amplifier in it's own right and more than a few steps above the DNA-125 amd DNA-225. At $7000 a pop, we should expect so.
I don't think that even the modded 225 will touch a stock 500.