New amp being touted as among the best ever......

Well Tvad can we call it a Class A amp then?

It is a hybrid, end of story and a new design hence the patent.

What about the budget aspect?
:-)

Please don't back losers just to be argumentative.
:-)

03-12-10: Ben_campbell
Well Tvad can we call it a Class A amp then?

Yes. If it's a hybrid of Class A and Class D then it uses both classes of amplification. So, it's both Class A and Class D until specifics are provided to demonstrate otherwise.

I'm not being argumentative. I'm making a point I consider valid. A company should be required to provide more details to support their claims if their new patented technology is to be accepted as legitimate. How about a patent number? Country of patent?

Diavlet calls their patented hybrid "ADH". Do a web search for "ADH amplification" and you will find nothing. Until proven otherwise, I believe this should be considered a marketing term and nothing more.

Again, it brings to mind DK Design's "Super Class A", which was strictly marketing.

Where is the photo showing the output and input jacks? Are they on the back? On the bottom? The website shows the unit wall mounted, but no wires. Pretty cool, but how does one connect all the wires? Through the wall? Is amplifier applicable to anything other than a custom designed installation?

Where is the photo showing the output and input jacks? Are they on the back?
Tvad (Threads | Answers)

Correction. I hadn't seen the video prior to writing this. They are located on the back.

Gentlemen,

Here is a link to their USA patent:

uspto.gov

The HFNRR review can be downloaded as a pdf here:

absolutesounds.com

Page 3 of the review has a box describing in very general terms how it operates. The patent includes considerable additional detail.

The patent describes the topology as being "Class AD." Since the great majority of the power to the load is supplied by the Class D section, I certainly don't think it would be correct to refer to it as being Class A in any sense other than the fact that the output voltage is controlled by a Class A circuit element (notwithstanding the fact that the Class A circuit element is connected directly to the output).

Perhaps all that can be said, IF Class AD is not a generally recognized term at this point (and I don't know whether it should be considered as such or not), is that it uses an output topology that encompasses both Class A and Class D circuit elements, that work in conjunction with one another.

Regards,
-- Al

OK. I capitulate.

Class AD it is.