RE: Class D is not digital.

Posted by DustyC (A) on January 29, 2016 at 18:04:40

In Reply to: Class D is not digital. posted by hahax@verizon.net on January 28, 2016 at 17:23:05:

Digital amplifiers use the PCM signal, and convert it to a form (PWM) suitable to switch output transistors on and off quick enough to modulate a power supply connected to a speaker load.
The analog conversion is done at the output stage were the carrier frequency is stripped off the signal via a low pass filter.
The TACT Millenium, NAD C390DD, Devialet, and Nuprime amps are examples of this type of amplification. Wadia had a digital amp about a decade ago.
All of them convert analog sources to digital format prior to amplification.

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Follow Ups Full Thread

Topic - Class D is not digital. - hahax@verizon.net 17:23:05 01/28/16 (19)

I think it is, somewhat - sbrians 13:26:29 02/02/16 (0)

RE: Class D is not digital. - DustyC 18:04:40 01/29/16 (0)

Is There True Digital Amplification? - Jonesy 08:39:43 01/29/16 (5)

RE: Is There True Digital Amplification? - DrChaos 15:57:36 01/29/16 (0)

I think you'll find they're called "Power DACs" -nt - E-Stat 08:56:41 01/29/16 (3)

RE: I think you'll find they're called "Power DACs" -nt - Jonesy 09:32:01 01/29/16 (2)

RE: I think you'll find they're called "Power DACs" -nt - E-Stat 09:54:14 01/29/16 (1)

Ah. I see! - Jonesy 10:13:15 01/29/16 (0)

They should have called it Class Square. :-) (nt) - Tre' 07:01:13 01/29/16 (0)

My amplifier says Digital - jedrider 06:57:27 01/29/16 (0)

Some of us remember - E-Stat 19:00:28 01/28/16 (4)

RE: Some of us remember - djk 22:40:53 01/28/16 (1)

Exactly my point! - E-Stat 05:12:54 01/29/16 (0)

Uh oh... - mkuller 20:43:33 01/28/16 (1)

There's no debate... - E-Stat 05:28:26 01/29/16 (0)

RE: Class D is not digital. - Self-Inflicted 17:38:52 01/28/16 (3)

RE: Class D is not digital. - hahax@verizon.net 20:33:13 01/28/16 (2)

RE: Class D is not digital. - janis 12:51:48 01/30/16 (1)

Agreed - E-Stat 20:38:57 01/30/16 (0)

Follow Ups

RE: Class D is not digital. - DustyC 18:04:40 01/29/16 (0)

RE: Class D is not digital.

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