Well, opinions in audio don't mean that much...we like what we like.
The Sunfire 600 is a tremendously powerful amplifier and I think they sound amazing. There just aren't many speakers you can throw at it that you couldn't drive with ease. They're good on horns and ribbons. They use the Downtracking Converter as a power supply, which is better than the Magnetic Field power supply in terms of efficiency.
The Silver 7t/9t's are just as formidable and sound just as sweet. I honestly couldn't choose between the Carver monoblocks or the Sunfire - they're both in the same l