Class TRD greetings

Goezzi · 13th May 2007, 09:24 AM

Hi there,

I'm a P.A. enthousiastic, we do free tekno-party's in europe.

Currently with aproxx 17-20kw rms audio output, 12 186 subs and bunch of x-troii tops.
6 channel digital crossovers and mainly stk 3,4kw switchedpowersupply railed amps.

I've designed, not build yet!, a tracking fullbridge class d sub amplifier, so less then 4khz(probably 200hz) to optimize the powercharacteristics. This is mainly in the understanding that >65% of energy is needed for the lower 500 herz that gives only 5% of the hearable audio information.
A fullbridge class D design, with slow tracking powersupply was my choice to supply that 65% of power with a minimum of thd.
The class ab amps can migrate to do the rest of the audio spectrum, ensuring quality even at high spl.

I hope to achieve some insights and solutions from your exstensive efforts here, any pointers would be appreciated ofcouse!

grtz, Goezzi

Cal Weldon · 16th May 2007, 06:09 PM

Hi Goezzi and welcome to the forums. I sure like your gear.

13th May 2007, 09:24 AM	#1
Goezzi diyAudio Member Join Date: May 2007	Class TRD greetings Hi there, I'm a P.A. enthousiastic, we do free tekno-party's in europe. Currently with aproxx 17-20kw rms audio output, 12 186 subs and bunch of x-troii tops. 6 channel digital crossovers and mainly stk 3,4kw switchedpowersupply railed amps. I've designed, not build yet!, a tracking fullbridge class d sub amplifier, so less then 4khz(probably 200hz) to optimize the powercharacteristics. This is mainly in the understanding that >65% of energy is needed for the lower 500 herz that gives only 5% of the hearable audio information. A fullbridge class D design, with slow tracking powersupply was my choice to supply that 65% of power with a minimum of thd. The class ab amps can migrate to do the rest of the audio spectrum, ensuring quality even at high spl. I hope to achieve some insights and solutions from your exstensive efforts here, any pointers would be appreciated ofcouse! grtz, Goezzi

16th May 2007, 06:09 PM	#2
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	Hi Goezzi and welcome to the forums. I sure like your gear. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

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