D-SONIC SOA Class-D Core Amps. The best Class-D ?


Owner/Designer Dean Deacon of D-Sonic in Houston in recent months dropped using the B&O ICE amps which he now only uses in the surround channels of his multi-channel home theater amps. He now uses a new Class-D amp in all of his Magnum2 mono and two channel amps which he states is the most technically advanced Class-D amp on the market, called the SOA Class-D core amps. The recent review in 6Moons of his new M2-1500M amp concludes its the closest that Class-D has ever come to tube amps in the upper mid-range and high frequencies.
Anyone bought or heard recently the D-Sonic M2-1500M or the M2-600M? What are your opinions?
audiozen

Showing 5 responses by deadlyvj

Guys,
This is actually not funny. Not one person has come forward regarding their "personal" experience with D-sonic. Then there is the talk how good a preamp "is". And now IT support for H2O.
A thread gone bad!
I'm not a electronics expert. PWM leads to issues in the freq. domain.
I would presume phase modulation might have a similar effect on the phase domain.
Mapman,
Agree!!
Just thinking aloud, since no one has come forward with their experience.

Another thing that is possible- considering phase is manipulated, there is a fixed frequency window - band width limited (which may be the case in PWM as well). However as my understading goes, there might be an error correction factor needed, may not be the tradional negative feedback, but maybe along the phase wave. Negative feedback if institued properly is generally a nonissue. Probably that's why it's called SOA, where all parameters are optimized.
Guys,
Since the original thread went off in a different direction, I wanted to keep off the path!
However the latest comment from AZ made me take the bait ;-)

Class D is very different from other classes, if it does not have a few zeros after the decimal point, one has to seriously consider the product. It's specs should be near perfect!! Since class D is doing everything else other than amplifying, spec are out most important. Not that it's not impossible, but knowledge is power! You don't want the manufacturer to just dump a product. In many cases such as tubes it's very easy to "create" a circuit and >50% of the time it will sound good. SS maybe <50%, but will sound acceptable. But with class D is a much smaller chance, and " we". want them to make the right choices. Class A is stuck for a few decades, only new tech in linear amplification recently I hear is from Siltech! Class D is progressing!! Tubes, of course is the golden standard.
Regards,
Humm.....
How about SPEC corp RSA-F3EX from Japan?
Seems like an interesting product?