You sound like your either a dealer or in the manufacturing chain for Class-D, if so which one do you sell, make or affiliated to?
Cheers George
Cheers George
The Future of Audio Amplification
toetap I don't think anyone here is suggesting that Nord, or most sub $4K class Ds compare to some of the super expensive class Ds, BUT * we all don't have trust fund accounts * it seems no matter the tech (Ill use racing engines) getting that extra 10% performance increase usually doubles... triples, and more the price Having owned 4 different W4S + PS Audio, Emerald Physics and now the older Audio Alchemy DPA 1 stereo amp, it is by far the most natural sounding (MUCH better than my Parasound A23 A/B amp), and speaking personally, $2K MSRP isn't chump change, and neither is the used price < $1000 to many of us I was going to upgrade to the AA monos, but this thread has me doubting any future value on the used market. In just 3 short years these $4k MSRP the pair can be purchased for < $2k and have stellar reviews from 2016 |
It would, since feedback is how the switching is controlled, without feedback, there can be no switching.There are three main types of encoding. One is 'self oscillating' which requires feedback and the feedback sets the switching frequency. So for that type the above statement is true but for Pulse Width Modulation and Pulse Density Modulation the statement is false; the latter two can be operated without feedback. The Technics model is different though. It uses digital signal processing to compensate for the speaker load, and then is a pure digital amp with no feedback ( I believe )Its a class D (switching analog amp) with digital control. Bruno Putzeys, one of the top class D designers, has a nice article on why class D is analog and digital isn't: https://www.hypex.nl/img/upload/doc/an_wp/WP_All_amps_are_analogue.pdf |