I just got a chance to examine the innards of a brand spanking new (purportedly fully updated) Nufrorce Ref8. Sorry, I didn't make note of the serial numbers.....
As far as I can see, there are no snubbers on the ouput half-bridges. Its now quite apparent why these amps splay noise into the FM band (see the oscilloscope picture in the post above) ; its a result of Nuforces choice of 'dead time' in their upper to lower switch transition and their choice not to use snubbers, along with unmatched parasitic ...
The only response you'll get is that 4 out of 5 dentists think they sound just wonderful, or words to that effect. "Sounds great, less filling." "Look at all the pretty reviews..." "We have bazillions of satisfied customers, and here are the testimonials from the satisfied ones..."
