class d amps

[brookeburke]

what is the difference between class d amps and others? i notice sub amps tend to have class d circuitry. what are the advantages of using a d class amp to power subs?

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[brookeburke]

what about class a amps? how do they compare to d's?

 

[Bumpin03 10+ year member]

isnt brooke burke that amazingly gorgeous girl from tv??

 

[taylor 10+ year member]

class a amps are less efficinet, say about 50%, the rest is dissipated as heat, and they take more amperage...but class a is supposed to be the best for sq (just speaker amp, sub amp don't really matter)

 

[brookeburke]

yes she is, and one day she will come to her senses and leave the man she's w/ for me. if not, i can always try my luck w/ the olsen twins.

 

[xjmadness 10+ year member]

Olson Twins?//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif :crazy: they are like 13 yrs old

 

[taylor 10+ year member]

actually, i beleive they are 16 now

 

[Randy Savage 5,000+ posts]

Yeah they are 16 now

 

[Larrydehp920r]

Originally posted by taylor class a amps are less efficinet, say about 50%, the rest is dissipated as heat, and they take more amperage...but class a is supposed to be the best for sq (just speaker amp, sub amp don't really matter)

Only until this year. XTANT is releasing this spring the 1st full range class D mono block amplifier. NOT a sub amp.......well it could be if you wanted it to be but it can be used as a full range one channel amp as well, as in mids and highs. I hear they are supposed to be 100w X 1 and I'm not sure if thats at 2 or 4 ohms. They are going to be small enough so you can have a bunch of them. Don't know the price either.

Larry

//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif//content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif

 

[Larrydehp920r]

You would use 2 of them. Which once you got the gains set correct they would be just like a 2 channel amp. And being class d they will be much more efficient.

Larry //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif//content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif

 

[taylor 10+ year member]

yeah but one class ab will bemore efficient than 2 class d's, will it not???

 

[Larrydehp920r]

No it wouldn't. One class a/b amplifier runs at 45 to 55% efficiency. class d amps run at around 80% efficiency. How is a class a/b more efficient ??

larry

 

[taylor 10+ year member]

well i guess not with effciency, but amperage draw...

 

[Larrydehp920r]

Class d's don't draw as much amperage either.........the phraze "higher efficiency" means that it makes more sound out of less heat. Therefore less current draw.

Larry

 

[denim 5,000+ posts]

just in case you were confused

 

Class A amplifers: Tube amps (Best for SQ)

 

Class A/B amplifers: Mosfet Powered amps (best for competitions)

 

Class D amplifers: Digital amplifiers (best for subs for a daily driver)

 

Class T amplifers: Digital amplifers (that are better in SQ and more efficent, but Tripath technologies are supposedly bankrupt so Iam not sure what the future of Class T amps are)

 

Class X amplifers: Digital, but I dont knwo much about them yet due to lack of exposeure to them