difference between class a/b amp and class d H

[88k5blazer 10+ year member]

I just wanted to know the difference between a class a/b amplifier and a class d amplifier. Isn't class d more efficient? And i heard somewhere that a class a/b amp has better sq.... so whats the deal?

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[Radar 10+ year member]

Yeah, class D is more efficient than a class A/B amp. Sq is generally a moot point when dealing with Sq. Usually your THD as long as it not too high, as a personal rule of thumb i use under !%. Youre fine.

 

[maylar 10+ year member]

Use the search. There's tons of threads on this already.

 

[helotaxi 5,000+ posts]

I've covered this exhaustively in the last week alone. "Search" is your friend.

 

[Phalaxx 10+ year member]

A/b is for highs and mids... class d is for subs.. trust us... just do it.... D's more efficient yes more distortion... Great for subwoofers...a/bs less power,cleaner sound,

 

[DBfan187 5,000+ posts]

http://forums.caraudio.com/vb/showthread.php?t=61150

If you are looking at an amp to power subs, you won't notice a difference with any amp. Power is all that you care about.
Class T is a hybrid Class D with a variable switching frequency. It has some of the efficiency gains of the Class D design but is made to run over the full audio spectrum rather than just low freqs like most Class D amps. It is not a true linear amp, so while the average Joe probably wouldn't notice the difference between a Class T and a Class A or A/B on his mids and highs, a purist probably would. Most budget speakers wouldn't have the resolution required to hear the difference. Subs definitely don't have the resolution and the difference is more noticable in the higher freqs anyway.

Quote:Originally Posted by tRiGgEr

a watt is a watt.

Not exactly true when you start talking about different classes of full range amplifiers. A Class T amp is not a linear amp making it sound different than a Class A or Class A/B amp. Just like you can hear the difference between a CD an MP3 and a cassette, so you can hear the difference between a Class D or T and a Class A or A/B.

Jmac- The 1200.1 is a Tri-path (Class T) amp. All the rest of the Tantrum series are A/B. This is per the PG website.

 

[Radar 10+ year member]

^^^ 2 months old thread, look before you post.