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Class D Switching Power Amplifiers and Power D/A conversion

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Old 9th March 2005, 02:47 PM   #21
DeonC is offline DeonC  South Africa
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Default I realized the technology had really matured when...

A friend of mine that loves triodes, and ownes a pair of 300B SE mono-blocks, bought a Tact digital amp. This is the same guy who descibes almost all SS amps that he has heard as high-priced angle-grinders. He hates the sound, and his whole system is basically tube with Tannoy Autograph corner horns and ribbon tweeters on the end. When Chris (his name) said that he has bought a tube amp, I knew that digital has finally become a real and viable alternative.

Enjoy,
Deon
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Old 9th March 2005, 02:48 PM   #22
MikeB is offline MikeB  Germany
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Default Re: Class D adherents

Quote:
Originally posted by jmateus

Carlos was using his gun on himself, but I think he should use it on
somebody who DON'T WANT to hear and much less open his mind....
I think Carlos shot his gun empty, but today he changed to a
very big gatling, setting to rapidfire with 240shots per minute...

Mike
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Old 9th March 2005, 02:52 PM   #23
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One cause might be that class-d amps are often erroneously called digital.

Then there are the two camps 1.) the ones that think everything "digital" is cool and 2.) those who think that everything digital sucks.

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Charles
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Old 9th March 2005, 02:58 PM   #24
dmason is offline dmason  United States
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Then there is the other camp, the ones who follow their ears; the ones who decide based on what they hear. The ones who know what Real Music sounds like.

Class D amplification IMHO simply serves the music better, and is a better compromise overall. Crystalline highs, warm mids, jackhammer bass control, rise time of lightning thru battery power. Transient impact at lower listening levels.
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Old 9th March 2005, 03:06 PM   #25
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Hi,

Yes, some are resistant, some are cautious, others are ignorant. Two of which you can have hope for. My remarks would have been geared towards those who latch onto the myths without even trusting their own ears or for that matter admitting to them. Those who would be aware of the current happenings yet deny the facts, simply to deny them based on false beliefs... yeah, ignorant.

The others will follow, by will or by force:

Ten years from they'll be teaching class d in schools and it will go something like:

"Why "D" instead of "A" or "B" or.."

"Because it's digital"

Don't go ranting on me now, I know that's not the reason for the "D", but I'm saying in a period of time "D" will take over as the every day amp and the others will largely be forgotten.. except for the tube guys, they'll still be around

Quote:
I for one, recently realized I had lost my taste for thermionic distortion. An interesting anecdote from a reformed Pentodist Preacher.
Cool, a convert! What was it that pushed you over, did it start with a U and end with a D? Usee?..D!
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Old 9th March 2005, 03:08 PM   #26
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Quote:
jackhammer bass control
Effortless bass is indeed one of the major advantages of class-d. A PA guy that I know was always complaining about "weak bass from digital amps" (I can't stand this naming BTW) and I assume that's where the bad reputation of class-d comes from:
If a topology sounds bad where it should actually excel then this points to a bad and/or cheap implementation (in this case a weak PSU).

Regards

Charles
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Old 9th March 2005, 03:17 PM   #27
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Hi,

It seems to be more than just the bass that it has incredible control over, perhaps that too is left over from the days of old?

I don't know, but the high's are incredible, maybe it's only because I've never heard a decent class b.

Was his weak PSU one of those deficient SMPS'?

Regards,
Chris
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Old 9th March 2005, 03:30 PM   #28
dmason is offline dmason  United States
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In a word, "more." More of everything.

Especially the you-are-there factor. When it starts putting you in the venue and allowing you to hear backplane reflections behind and above the recording stage, etc., when you turn off the lights and your walls melt away, when your jaw drops every night, then its done. In the service of The Music, then there is no question, only arguments and preferences. As to the argument, I could care less. It is all about the music, whose cause seemingly gets lost, often. As to preferences, I prefer MORE.

The more you know the real acoustic overtones and complex harmonics of actual acoustic instruments, the more likely you will be to be a convert. That is what I have seen over and over and...

when you start using outstanding speakers, when you get rid of the crossovers, when you get off the National Electrical Grid, it starts to get scary good. Waaaaaay More.
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Old 9th March 2005, 03:35 PM   #29
MikeB is offline MikeB  Germany
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Quote:
Originally posted by phase_accurate

Then there are the two camps 1.) the ones that think everything "digital" is cool and 2.) those who think that everything digital sucks.
And Camp Nr 1 really believes that "digital zoom" in their digicam
is something wonderful. It must be wonderful, because it's "digital"...

Mike
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Old 9th March 2005, 03:49 PM   #30
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Default I gonna send a roastbrattwurst sausage to you Mike

As you are turning very bad with my Philips, you told he may be crab (hehe...the other word is erased automatically in our forum)

No hungry man?....well, think another use or put aside to use latter.

regards,

Carlos
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