See lots of SS = ClassD type posts.
Isn't the Crest CA9 a pretty well respected SS power amp and a class H?
Isn't the Crest CA9 a pretty well respected SS power amp and a class H?
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Does class D have the Heft of SS
- Thread starter MrCash
- Start date
Yes sir, why I edited it. Sometimes it takes a while for something to sink in... a hell of a lot of bone to go through to get to my brain
It's also important to account for the way different amps respond to different body woods.
I get accused of taking things literally. OTOH he was pretty emphatic about it.
it took me 30 seconds to look it up. I had no idea if Carvin stated the dampening factor. Even their least expensive Carvin bass amp has as good of spec on damping. I remember when the sales push for SS audio (home stereo type) amps over tubes was the insane damping factor in the low hundreds.
Agreed on the Kustom... but it has the Icepower module that in some others hands does not do what you've experienced. I used mine today and there was no shortage of heft with a pretty aggressive bass and a nice cab...along with a pretty boisterous drummer. Apparently OMV.
I seem to remember that too.
I know he is possibly wrong in this case. I do know it's class d but the design is a bit different (modified) and not just the same as a standard class d amp as he was implying it's just class d renamed class t by a company. There are as my admitted limited understand differences and Aguilar certainly seemed to write that to in there press releases.
Saying all that if it can be explained to me exactly the differences and what is the same I'm willing of course to wind my neck in.
Not in my book. Details matter... unfortunately many try to get things in a nice tidy box but that rarely works out IRL IMO IME ASPCA.
My advice is to make up your own mind by experiencing as much as you can. And make the effort to understand how all of your gear and you interact.
A friend of mine told me a funny story from a few years back: he had gone through a slew of gear because he was never happy with his sound: several high end basses, cabs, strings, power amps, none of it met his goal. Then he realized that he had used one preamp the entire time. He changed that and practically everything he touched sounded great... which lead to him kicking himself over all of the gear he had dumped in his search, often at a substantial loss.
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Just trying to help you out. I remember when a young friend of mine decided to school TB member Thepontif (Mike Pope) on electronics. Good times.
Just for grins, do a search on Agedhorse... that might get the winding started.Or just look at his signature.
edit: or read post 73. If you understand what he's saying (not saying you don't) and you still want to challenge his well-established knowledge, cool.
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I just read the entire patent for Class-T amplifiers (available here) and it seems remarkably simmilar to Class-D technology. The major difference seems to be some DSP on the front end, but that makes sense as Class-T was originally intended for computers which have the capability for DSP in spades.
Most of the patent is way above my head, so anyone who knows more than I should feel free to chime in.
In the patent, toroidal transformers are mentioned a grand total of zero times.
I see his signiture but does that mean he knows everything. And if he does then why not teach me rather than just saying there isn't any.
I'm not trying to school anyone. I would love to learn more about the differences.
As said from reading there does seem to be differences in the designs. Again Aguilar from reading there literature pointed this out.
I'm not trying to school anyone. I would love to learn more about the differences.
As said from reading there does seem to be differences in the designs. Again Aguilar from reading there literature pointed this out.
From Aguilar's blurb.
The conventional class AB power amplifier is a tried-and-true design, but one that operates relatively inefficiently, producing enough excess heat to require noisy fans and large heat sinks, which add to an amplifier’s bulk. Class D amps are far more efficient. They produce power by switching transistors on and off at a high frequency using a process called Pulse Width Modulation. The AG 500 is like a Class D amp, but it utilizes switching technology developed by the Tripath Corporation. The Tripath power amp topology, named Class T, modulates the output using a proprietary module that purports to eliminate some of the weaknesses of Class D amps while maintaining the efficiency that’s a hallmark of the technology. Aguilar’s AG 500 uses a Class T output stage and a conventional linear power transformer.
The conventional class AB power amplifier is a tried-and-true design, but one that operates relatively inefficiently, producing enough excess heat to require noisy fans and large heat sinks, which add to an amplifier’s bulk. Class D amps are far more efficient. They produce power by switching transistors on and off at a high frequency using a process called Pulse Width Modulation. The AG 500 is like a Class D amp, but it utilizes switching technology developed by the Tripath Corporation. The Tripath power amp topology, named Class T, modulates the output using a proprietary module that purports to eliminate some of the weaknesses of Class D amps while maintaining the efficiency that’s a hallmark of the technology. Aguilar’s AG 500 uses a Class T output stage and a conventional linear power transformer.
IIRC, toroids are just smaller than a conventional xformer. They used to be very expensive, probably not as much now, but with class D being very efficiant, no need for the addition cost of a torroid.
Mr Cash, Maybe his signature doesn't mean a lot to you, but the fact that thousands, no make that probably tens of thousands of us have chosen to purchase and use many of his amp designs for many years. Always helpfull, always knowledgeable, but the man has a life and can't explain every detail of every concept and design in detail.
My 6½-pound B|Amp doesn't have one-sixth the "heft" of my former 44-pound DB750. That's why I bought it. But it sounds better to my ear and has just as much bottom end, only cleaner.
Listen I've made my argument and I feel I've been fair in what I've said.
I don't have anything against him, but to come on saying something abruptly to me when the company that designed the amp in this case Aguilar are saying something different then I'm going to ask for a clarification on the meaning.
Nothing more
