CLass A/B versus CLass D
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Bronze Member Username: Mrmoneymachine8Post Number: 22 Registered: Apr-05 | whats the difference and what is better? i think D is better but, what the hell is the difference. someone please explain |
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Silver Member Username: StnorrisEldridge, IA US Post Number: 509 Registered: Apr-06 | class a/b can have better sound quality. class d is normally for high rated amps. u can learn everything about amp classes, if you just type it in on google. |
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Silver Member Username: GangstafertJacksonville, Florida USA Post Number: 250 Registered: May-06 | Some of these other guys can explain it better but class D are more efficient and better for subs and A/B are geared more toward speakers. |
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Bronze Member Username: Mrmoneymachine8Post Number: 23 Registered: Apr-05 | okay. well i have a kicker solobaric 12 L7, im thinking of buying an audiobahn A8000V, which has A/B class power. its 800 w rms @ 2 ohms, is there a huge difference between this A/B or like a Class D. will i be dissapointed if i go with this audiobahn with A/B? |
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Gold Member Username: Dustin3Tigard, Or U.S. Post Number: 2048 Registered: Oct-05 | dont worry about it. its fine. its not as big of a diff as u think. get the amp |
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Silver Member Username: Usask8er1Appleton, Wisconsin USA Post Number: 325 Registered: Jun-05 | A/B amps are gonna put out a cleaner signal if your aiming for Sq, but they require more battery power to create the cleaner signal. |
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Gold Member Username: Dustin3Tigard, Or U.S. Post Number: 2054 Registered: Oct-05 | read up on ampplifier classes on www.bcae1.com other than that, the amp is nice |
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Gold Member Username: RovinTrinidad & T... Post Number: 8374 Registered: Jul-05 | http://www.wickedcases.com/caraudio/amplifiers.html |
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Bronze Member Username: BuckillerPost Number: 11 Registered: May-06 | Based on the direction of the industry (eclipse), class D amps will be more widely used than they are right now.... But since you are buying right now the general rule is AB for speaker, D for subs. |
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Bronze Member Username: MaxsqPost Number: 17 Registered: Jul-06 | It's the difference in efficiency. Class A/B are better for ALL frequencies, Class D is not as clean and are used for subs because they can cut the top frequencies out that would make audible distortion. That is typically why they are only used on subs. Only Xtant has experimented in this realm for full range because they feel that they have over vome the inherient shortcomings of Class D distortion. The bottom line is that if you care about the sound quality and want to hear it the way it was intended used A/B and if you just want to pound and are not that concerned about sound quality the go with D. |
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Silver Member Username: N2audioLawrence, Ks USA Post Number: 915 Registered: Mar-04 | In sub frequencies there isn't an SQ difference between a/b and D. |
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Silver Member Username: N2audioLawrence, Ks USA Post Number: 916 Registered: Mar-04 | the only difference is in efficiency where class D wins in a landslide at every level except max power - where they're still 10-30% better. |
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Silver Member Username: StnorrisEldridge, IA US Post Number: 762 Registered: Apr-06 | in sub frequencies there is a difference in sq. read up there^^, and check out some sites. the sq change though, is very smallll. ***The bottom line is that if you care about the sound quality and want to hear it the way it was intended used A/B and if you just want to pound and are not that concerned about sound quality the go with D.*** this is not true, because about 99% of the sq, will be the sub that you choose. you can buy a sub with a ton of sq, and get a D amp, and it will make the TINIEST difference sq wise, because of the diff amp CLASS. |
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Gold Member Username: Dustin3Tigard, OR U.S. Post Number: 2601 Registered: Oct-05 | that didnt make u sound very smart steven, hahaha |
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Silver Member Username: StnorrisEldridge, IA US Post Number: 764 Registered: Apr-06 | uh huh. lol |
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Silver Member Username: N2audioLawrence, Ks USA Post Number: 921 Registered: Mar-04 | "in sub frequencies there is a difference in sq. read up there^^, and check out some sites. the sq change though, is very smallll." Theoretically, sure, but the fact remains if you were to do a double blind listening test on an xxx watt class d vs. an equal power class a/b within the specified bandwidth of the class D - there would be no audible difference. |
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Silver Member Username: BelieveIllinois Post Number: 163 Registered: Jun-05 | steven.. you could have the best sq sub in the world and it would not make a bad amp sound good instead you would accurately hear how bad the amp is there is a threshold between the amp and sub lets use a scale of 1-100 for quality.. if an amp puts out 100 but the sub can only put out 60.. your gonna hear 60 if the amp puts out 60 and the sub can put out 100.. your gonna hear 60 class d amps have a reverb kinda to them or if you were to watch an oscilliscope the wave would be seperated like double vision the class a/b would be tight as a pinch and really we are talking about human error.. there are ppl that cant tell the difference between pepsi and coke with a blindfold on average joe or expert.. its still human error lol.. lemme have some fun with this if i were to be blind folded and was trying pepsi vs coke.. if i take a drink and it tastes like pepsi then it becomes fact to me and me only once i lift the blindfold and realize it was coke.. the drink i took tasted like pepsi- that thought would be a fact but i still thought it was pepsi when it was really coke the word factitious comes to mind and that means: Produced artificially rather than by a natural process. artifical is a remix of anything natural |
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Silver Member Username: StnorrisEldridge, IA US Post Number: 821 Registered: Apr-06 | quote**** lets use a scale of 1-100 for quality.. if an amp puts out 100 but the sub can only put out 60.. your gonna hear 60 if the amp puts out 60 and the sub can put out 100.. your gonna hear 60 i believe what you said the first time, because that was saying what i was trying to say. if an amp puts out 100 but the sub can only put out 60.. your gonna hear 60...thats kinda what i was saying. but your second sentence i dont believe. first of all, there are subs, that only have 60 for sq. take an example: a treo ssi. a treo can probably do around 95 or so. then take one of the worst amps theyre are.....sony xplod, insignia, boss, pyramid, or pyle, i do not believe that the treo, will sound like a 60. not at all. maybe it will bump down to like an 88 or so, if powered with a crappy sq amp, but thats about it. do u agree with me at all??? what i was saying up there is, the sub has A LOT more to do with it, than the amp. there audible difference between the two, is so small, you cant even tell, sometimes u can though. im not sure if reverb is the word to use for class d. i hear reverb all the time playing guitar, and thats not what i have ever heard a class d sound like. |
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Silver Member Username: Troy81Tavernier, Fl Us Post Number: 733 Registered: Mar-06 | im just sitting here waiting for all the guys that say a watt is a watt  |
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Silver Member Username: StnorrisEldridge, IA US Post Number: 825 Registered: Apr-06 | ya i thought about that during my last post. its funny that he said that if the amp can do 60 for sq, and the sub can do 100, its gunna sound like 60. lol that makes no sense, especially when u think about a watt is a watt. but i didnt say that, cause i believe the amp class, and the build (or brand) or the amp, has a little bit to do with sq. a watt is a watt, but a jl 500/1 will sound better with a jlw7, than a 500watt sony amp will. |
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Gold Member Username: Alias747MN Post Number: 1127 Registered: Apr-05 | "but a jl 500/1 will sound better with a jlw7, than a 500watt sony amp will" According to Richard Clark that's not true. And he has like $15,000 for the person who can actually tell. He says as long as the 2 amps are used within their limits and are putting out the same ammount of power NO ONE can tell the difference. I am not starting a fight at all I am just tellign you what he says, and so far NO ONE has been paid. I think I believe him. Just google it and you might find more info. That is about all I know about it. I find it really interesting though. |
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Silver Member Username: N2audioLawrence, Ks USA Post Number: 923 Registered: Mar-04 | with the brands you're using as examples -- Xplod, pyramid, pyle etc... They all have perfectly acceptable SQ - the issue you're all tossing around - whether you realize it or not, is power. |
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Gold Member Username: Chaunb3400Huntsville, Alabama U.S. Post Number: 8145 Registered: Jul-05 | a watt is a watt period..... |
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Silver Member Username: Troy81Tavernier, Fl Us Post Number: 756 Registered: Mar-06 | ok ok, here goes, if you use an amp within its parameters, and use another amp of the same wattage within its parameters, it is impossible for the human ear to tell the differance pushing the same speaker in same box etc... |
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Silver Member Username: BelieveIllinois Post Number: 170 Registered: Jun-05 | steven.. that 95 sub can only speak what its told so if the amp says 60 the sub cant magically move extra on its own |
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Gold Member Username: Alias747MN Post Number: 1128 Registered: Apr-05 | GOD who started giving frickin amps and subs "quality numbers"? Just shut up. The point has been made. The truth has been told. The case is CLOSED. "a watt is a watt period....." AMEN! I have been trying to explain this to you forever. :shakes head in utter frustration: |
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Gold Member Username: Alias747MN Post Number: 1129 Registered: Apr-05 | "steven.. that 95 sub can only speak what its told so if the amp says 60 the sub cant magically move extra on its own" GOD who started giving frickin amps and subs "quality numbers"? Just shut up. The point has been made. The truth has been told. The case is CLOSED. "a watt is a watt period....." AMEN! I have been trying to explain this to you forever. :shakes head in utter frustration: |
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Silver Member Username: StnorrisEldridge, IA US Post Number: 853 Registered: Apr-06 | haha. yea ill admit what i said was wrong, but it wasnt as wrong as this: ***there is a threshold between the amp and sub lets use a scale of 1-100 for quality.. if an amp puts out 100 but the sub can only put out 60.. your gonna hear 60 ** |
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Silver Member Username: StnorrisEldridge, IA US Post Number: 854 Registered: Apr-06 | hahah i meant to put this: quote*** if the amp puts out 60 and the sub can put out 100.. your gonna hear 60 ** |
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