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    Class A vs Class T vs Class D any difference in sound quality?

    Hi guys I'm looking to run sq. I have a jl w7 12" and am looking for a new sub amp as at present using a pg ti 600.2 which wanting to use for components. I am looking for at least 1200 rms to give me a 3db gain i.e. double the volume. There is a phoenix gold tantrum 1200.1 which is Class T, never heard any class T before so what are you opinions on it. Also I have tried a jl 500/1 which is class d and that sounded different from the class a PG ti 600.2 that I'm currently using to drive the JL.







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    Re: Class A vs Class T vs Class D any difference in sound quality?





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    Re: Class A vs Class T vs Class D any difference in sound quality?

    OK, DB, wrong thread to linl to for this question.

    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. The Tantrum 1200.1 would be agood choice to run that sub. It will match the other amp too which is always a bonus in my book.



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    Re: Class A vs Class T vs Class D any difference in sound quality?

    also heat is a factor. you for got to ad that.




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    Re: Class A vs Class T vs Class D any difference in sound quality?

    Quote Originally Posted by helotaxi
    OK, DB, wrong thread to linl to for this question.
    I didn't bother searching for the post in that thread, so I linked the whole thing and they did talk about this same subject somewhere in there!




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    Re: Class A vs Class T vs Class D any difference in sound quality?

    a watt is a watt.




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    Re: Class A vs Class T vs Class D any difference in sound quality?

    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.



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    Re: Class A vs Class T vs Class D any difference in sound quality?

    Quote Originally Posted by Jmac
    Anyways, it's not very efficient for a Class T amp, then ... Only about 66.7% efficient ...
    Actually for a real world efficiency, that't not too bad. Beat case for a tripath is on the order of 80% IIRC. There are Class D amps out that dream about efficiency numbers that high. Pretty sad for a theoretically 100% efficient design.



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    Re: Class A vs Class T vs Class D any difference in sound quality?

    holy crap, James your slipping :p





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    Re: Class A vs Class T vs Class D any difference in sound quality?

    I am looking for at least 1200 rms to give me a 3db gain i.e. double the volume.
    Doubling power will give you a 3 db gain, theoretically, but humans need approximately a 10 db gain to percieve a doubling of volume.




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    Re: Class A vs Class T vs Class D any difference in sound quality?

    how about damping factors? I am running sealed so maybe a high damping factor would not be nessasary. Also are there any other amps that I should consider, I have been told that the PG ***** loads of current and I am using standard audi battery with 0 gauge wire, I will only be using the system while the car is running so don't know if this may be a problem. I'm not sure how much my voltage fluctuates in the car but I'm sure it does wouldn't a regulated power supply have better linearity and therefore better sq?




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