D-Sonic vs Wyred vs ....

Patrik Bostrom, Chief Engineer and designer of Abletec Amplifiers that are used by D-Sonic, has done away with PWM,
[Pulse Width Modulation} in his Class D designs, which has always had problems with uneven harmonics in certain bands and uses a method he designed call Phase Shift Modulation, which is similar to the method designed by Bruno Putzeys with Ncore/Mola Mola. However, Bostrom has the edge
after reading up on their design applications and Bostrom currently has made the worlds finest Class D amp for Marten of Sweden, Their M-Amp. PWM is still used by B&O in their ICE amps and has been around since the first Class D amp was invented by the Fairchild company in the U.S in 1964.
A mono amp, the Fairchild UA-702, which never got off the ground due to constant failure. That same year, Clive Sinclair in London, launched the worlds first working class-D amp which also had its problems. Patrik Bostrom with Abletec, is also a
musician and a very passionate Audiophile. Abletec is more advanced than B&O. Better bang for the buck.

The M3 series has been out for quite sometime. I already mentioned in a previous
thread I initiated months back on D-Sonic that Dennis mentioned to me during one of several phone conversations that his M3-1500M amp is a Pascal, and his M3-600M amp is Abletec. He would not divulge any further info on his other mono or two channel models but did state that all of his multi-channel amps are B&O Ice.

Yes Guido..the M2-1500M and the M3-1500M are identical amps
as well as the M2-600M and the M3-600M. The only difference as mentioned by Dennis, is that the chassis/faceplate design was upgraded to the entire line in 2012.

Well gent's, during the past week two new amplifiers popped up on the Wyred 4 Sound website. Their in a redesigned chassis that departs from that industrial look and much more attractive. They are both stereo amps employing the latest technology from B&O using their 250ASX2 amps. The amps are the ST-500 MKII and the ST-1000 MKII.
Two 250ASX2 boards are in each amp. This is the same amp that is used in the mono Mamp. The amps did show up at the recent RMAF. Sonically, like the Mamp, they are smoother, richer, much better treble, more refined.

The photo's at RMAF of the Wyred 4 Sound setup at the Marriott last October with the Emerald Physics speakers does not look very ideal and its a crap shoot with Class D amps at a high end show since they are more a.c. wall dependent using the outlet as a capacitor bank than a conventional A/AB amp which is why Class D amps will only perform best in your home with a true, straight line dedicated 20 or 30 amp a.c. outlet. During the past fifteen months I've read many post's on threads on a variety of high end sites of philes who own the Mamp from Wyred and they all come away with very similar opinions that its a very rich, warm, organic, smooth sound with a very liquid midrange. The Mamp and the new Wyred ST-500 MKII and the ST-1000 MKII all use the B&O ASX 250-2 amp. This is the exact same power amp that's in Bel Canto's REF 500M which is Bel's best sounding amp which is why it makes sense for Wyred to jump on this puppy and take advantage of it like Bel. Both John Stronczer at Bel and E.J. Sarmento at Wyred have done and excellent job with their extensive in house
upgrades to the input stage's of the ASX amps they are using
which is why the new models from Wyred should be taken very seriously based on the rave reactions to the Wyred Mamp and the Bel Canto REF 500M during the past several years.

"But what I heard there was beyond painful"..spoken like a true politician. There are lots of other relevant ears out there who own Wyred that have opposite opinions that are very positive that I have read, and yes I have listened to class d amps over the years including owning a pair of Nuforce REF 9 MKII's in 2007.

God!..I just love a good pot of stew on the stove.

Hi Srama. Your experience further confirms the incredible/value performance of the D-sonic Abletec amp designed by Patrik Bostrom of Sweden. I discovered D-sonic by accident back in 2012 when I came across a report in a tech mag out of Europe reporting on a company called Abletec that has made further advancements in class d technology with incredible sounding amps. It listed their U.S. office in New Jersey so I called and spoke to the office manager on his cell who informed me only two companies currently use Abletec in the U.S.. Parasound in their
Z Quattro amps and D-Sonic.