what does a class D amp mean what is better/worse

 

better or worse for what?

 

class d
*greater efficiency @ driving high current-
* dedicated to run frequiencies typically 200hz and under(subs)
* typically lower damping factor(speaker control) than class a/b's
*as impedance drops from 4ohm to 2ohm, damping factor cuts in half, and distortion doubles- same happens from 2ohm to 1ohm- not great for SQ

 

Class D is known as the Digital Amp, it does all that manny listed above. Great for Sound Quality setups, gives nice precise hits or deep booms when it gets the proper signal.

The AB style is basicly crude. It gives awesome booming bass, but doesn't really give all that clear of bass when there's multiple frequency signals.

 

You are kidding right?

 

i heard they are smaller is this true

 

kcidmil,

What the hell are you talking about?
Class D means Digital? Are you insane?
Class A/B is crude & not good for SQ? Are you nutz?

Please do more research about audio electronics before you post garbage like this again. I am sure everyone else feels the same way. Thank you!

 

RESEARCH?......... you need to do some research. Here's a example for you. My 500 D Memphis M Class amp.

Even states on most sites for different companies. CONTROLLED BY A MICROPROCCESOR. The nickname for the Memphis D series is the Memphis Digital M-Class. The company and dealers use this term.

And the D series amps give you clearer bass than the AB style does. And I've done personal tests that have shown such results. And I have every car audio store in town agreeing with me. If you want a pure SQ setup, a D series is the way to go.

And as for Garbage, this "garbage" typing moron you're trying to put down. Has been installing for over 7 years now. I got a 147.6 db in a SPL competition with a pure SQ setup. Taking 3rd. With mid quality subs.

My advice to anyone, don't take any advice from nostrixoxide. He'll help you blow your subs, or fry your amp. And plus help you install something that you don't want.

 

What is a Class-D amplifier?
The strict definition of a Class-D amplifier only requires that the output devices are used as switches. Fictitious class names that refer to switching amplifiers are actually referring to Class-D. Switching amplifiers are therefore Class-D amplifiers.

What is a "digital amplifier"?
Class-D amplifiers are often called "digital amplifiers". However, the "D" in Class-D doesn't stand for "digital", as is commonly thought. Switching amplifiers usually incorporate digital circuits (as in computers), so they can be thought of as "digital". There is controversy surrounding the definition of "digital amplifier" because it implies that the amplifier is made entirely of computer circuits, but this is not the case.



some good reading here too

http://www.crutchfieldadvisor.com/IS...ew.html?page=3

 

So, O wise one impart your infinite wisdom on me. What is the difference between a class A, a class A/B, and a class D amp. And no D does not stand for digital, but it has been adopted by the "industry".

And, no, answers like I've been installing for so long and all my buddies told me so so it must be true are not what I'm looking for.

 

thank you, all this info is exactly what i wanted to know

 

Sorry, Class D are usually smaller since they are far more efficient than either A or A/B amps. If you using them for driving subs they will be fine. There are some full range class D amps out (Xtant) that switch the output devices faster than the standard sub amps do and therefore the switching is inaudible. This will be the new standard for amps. We are literally on the verge of a breakthrough. Literally there are 100W amps the size of a deck of cards out there that we will be seeing in the next few years. Really amazing stuff.

 

hopefully we'll see those in h/u's perhaps. but anyway, this thread is funny. the right answer are in the thread...just a bunch fo bs is in it also.

 

Class D are only typically used for subs because of their efficientcy. Not at all because they are "clearer". As a matter of fact alot of SQ guys will use A/B amps despite thier efficientcy, because of them being more "accurate".

On a side note...state your opinion and leave it at that, flaming others wont be tolerated.

--Don

 

http://www.crutchfield.com/S-j3kfIeA...nfo&i=133C9800

This Panasonic receiver uses the Tripath chip amp and supposedly puts out 70W per channel peak and 60W RMS. Just a matter of time till 100W per channel receivers are upon us!

 

I'm done with this guy, you guy's get him!

 

Kcidmil,
Here, maybe this will help you get alittle further with your audio knowledge. Obviously 7yrs. of experience hasn't helped you comprehend the audio game so here you go.

Q: What's the story on the different amplifier "classes?"

A: An amplifier's circuit design determines its class of operation. Class A amplifiers are desirable for the high quality of their sound, but the design is not particularly suited to car applications because of inefficiency and high heat production. Car amplifiers that boast Class A design are usually a Class A/Class AB hybrids. The Class AB design is most commonly used for car amplifiers because it combines reasonable efficiency, low distortion, and reliability.

Class D amplifiers ("D" does not stand for "digital") boast higher efficiency, produce less heat, and draw less current than traditional Class AB designs, but they tend to have more distortion. Since low-frequency distortion is almost impossible to detect, compact Class D amps rule the bass kingdom. Class T amplifiers combine characteristics of conventional Class AB and cutting-edge Class D designs for great power, compact size, and minimal production of heat. For more information, check out "Classes of Amplifier" in our Amplifier Glossary article.

Here is the link where this info was located so you can further your audio knowledge
http://www.crutchfieldadvisor.com/S-...fiers_faq.html

 

yeah ive seen that h/u. it looks promising but some say it doesnt put out that power... either way im excited.