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Discussion Starter #1
Hey all, i'm looking to upgrade my sub amp. I have a friend buying my current kenwood amp so now I have an excuse to buy myself a new one. I'm looking to find something in the $300 range. I'm mostly about SQ so I want something decent. I've been thinking about the audiobahn 8002t since its rated @ 4 ohms and would be a good match to my subs. I have two 4 ohm Kicker DVC 15" subs in a sealed enclosure so they need about 500 watts rms each. So guys, gimmie your ideas. THANKS!
 

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I bought a Audiobahn A1801X for $220 through a local guy that wanted to get rid of it. I think it's rated at 400x1 @ 4 ohms.

I also used to have a Directed 600d that would work awesome with your setup. It was rated at 275wx1 rms, but dont let the low rating fool you. Being a Class D amp it hit very hard and was very efficient.

The directed definitely hit lower, but the audiobahn has better mid-level bass and does not get hot like the Directed did. If you really want/need 1000 watts rms there is no amp that will deliver that for $200, not that I know of anyway.

Both retail for about $450, but can be found online for much cheaper. Remember with car audio stuff usually you get what you pay for.
 

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PPI PCX-480. A GREAT amp... and they go for as low as $200 (new) on eBay. Much better than Audiobahn, IMNSHO. Check out some car audio forums--everyone loves this amp, esp. for SQ!
 

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If you want SQ then you do not want a Class D amp. I have an Ample Exonic580M in my trunk on a single 12" DVC sub. The 580M is a mono-block, but it is a Class A/B mono-block. What that does is provides cleaner power to the sub. Class D amps are so cheap because they do not have to be "clean" power, they are used primarily for loud hard bass. I will be selling mine here shortly, drop me a PM if you are interested. The great thing about my job is I get to upgrade every year when the new product comes out.


http://www.ampleaudio.com/product2.html
 

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its a sub amp, he isnt going to need a class a/b amp. from what i have read about it, is that a class d will produce ditortion at higher freq, which he shouldnt be sending to his sub in the first place. the jl 1000/1 is far from cheap and it is a class d.
 

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Originally posted by snyper1982@Jan 26 2004, 12:16 PM
its a sub amp, he isnt going to need a class a/b amp. from what i have read about it, is that a class d will produce ditortion at higher freq, which he shouldnt be sending to his sub in the first place. the jl 1000/1 is far from cheap and it is a class d.
Did you read my post at all? The amp I have, the Class A/B is a mono-block sub amp. And if I read his post right, he wants more SQ than SPL. In that case a Class A/B would be better than a Class D.
 

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Originally posted by snyper1982@Jan 26 2004, 01:16 PM
its a sub amp, he isnt going to need a class a/b amp. from what i have read about it, is that a class d will produce ditortion at higher freq, which he shouldnt be sending to his sub in the first place. the jl 1000/1 is far from cheap and it is a class d.
class D's dont neccesarily create distortion in higher frequencies, they do weird things when thye are driven into clipping. when a class D amp starts clipping it creates harmonics in the upper frequencies that can destroy a speaker in a hurry. even so, you shouldnt even need to consider about sending high frequendcy info through a sub amp, they are designed to do low freq's.

the JL 1000/1 is expensive because it has the JL logo on it, thats the only reason.

edit: for the budget you have laid out youre best bet is going to be to find a good used amp on ebay or on forums. it will be kind of hard to find a new amp that will do 1000 watts at 2 ohm's
 

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Discussion Starter #10
Originally posted by hoss+Jan 26 2004, 08:28 PM-->QUOTE (hoss @ Jan 26 2004, 08:28 PM)
<!--QuoteBegin-snyper1982
@Jan 26 2004, 01:16 PM
its a sub amp, he isnt going to need a class a/b amp. from what i have read about it, is that a class d will produce ditortion at higher freq, which he shouldnt be sending to his sub in the first place. the jl 1000/1 is far from cheap and it is a class d.
class D's dont neccesarily create distortion in higher frequencies, they do weird things when thye are driven into clipping. when a class D amp starts clipping it creates harmonics in the upper frequencies that can destroy a speaker in a hurry. even so, you shouldnt even need to consider about sending high frequendcy info through a sub amp, they are designed to do low freq's.

the JL 1000/1 is expensive because it has the JL logo on it, thats the only reason.

edit: for the budget you have laid out youre best bet is going to be to find a good used amp on ebay or on forums. it will be kind of hard to find a new amp that will do 1000 watts at 2 ohm's [/b]
I have it wired @ 4 ohms (one channel). I'm not sticking to exactly $300, I won't mind too much more just gimmie some suggestions. I kinda like some of the MTX amps, they seem to have a good amp (on paper anyway). I'm still considering the audiobahn amp (not too bad for the price). I'm really looking to buy something new that'll have some sort of a warranty. I also won't really mind something like 800 watts too.
 

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I don't think I've seen or heard an AudioBling that's worth the chrome it's dipped in. They seem to be good for watts/$, but the SQ isn't great, and the outputs are exaggerated (kinda deflates that watts/$ argument.) That's just my opinion though, many people swear they sound better than what my ears tell me.
 

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Originally posted by SixFoFalcon@Jan 26 2004, 10:07 PM
I don't think I've seen or heard an AudioBling that's worth the chrome it's dipped in. They seem to be good for watts/$, but the SQ isn't great, and the outputs are exaggerated (kinda deflates that watts/$ argument.) That's just my opinion though, many people swear they sound better than what my ears tell me.
but my eyes tell me it sounds better... bling = louder.

it has always been my experience that they wont do their rated output. they can have the SQ, it just depends on the model and class. but they are a bit more expensive because they are shiny.

i would strongly recomend the MTX amps, if you find one you like then get it. MTX will do their rated power and are not bad for the money.
 

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Discussion Starter #13
Originally posted by hoss+Jan 26 2004, 09:13 PM-->QUOTE (hoss @ Jan 26 2004, 09:13 PM)
<!--QuoteBegin-SixFoFalcon
@Jan 26 2004, 10:07 PM
I don't think I've seen or heard an AudioBling that's worth the chrome it's dipped in.  They seem to be good for watts/$, but the SQ isn't great, and the outputs are exaggerated (kinda deflates that watts/$ argument.)  That's just my opinion though, many people swear they sound better than what my ears tell me.
but my eyes tell me it sounds better... bling = louder.

it has always been my experience that they wont do their rated output. they can have the SQ, it just depends on the model and class. but they are a bit more expensive because they are shiny.

i would strongly recomend the MTX amps, if you find one you like then get it. MTX will do their rated power and are not bad for the money. [/b]
Thanks, now I feel a bit more secure towards the purchase of an MTX amp. I kinda like the idea of the "lab results" test sheet with every amp. I of course am not looking for anything insanely powerful nor insanely expensive. These seem to fall in my range... thanks for the recommendation hoss. I'll update everyone with what I get once I do it. THANKS ALOT!
 

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did you even read my post? he will NOT notice a difference in class d or class a/b. there is NO SUCH THING as an sq amp. if you dont believe me take the Richard Clark challenge. thats all i have to say about that.
 

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IMO the Audiobahn I have is just as powerful as the Class D amp I had previously, it just doesnt have the extreme low end that the Class D had. And also MTX makes pretty good quality amps, but you're still gonna need some coin to get close to 1000w rms.
 

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Originally posted by snyper1982@Jan 27 2004, 03:11 AM
did you even read my post? he will NOT notice a difference in class d or class a/b. there is NO SUCH THING as an sq amp. if you dont believe me take the Richard Clark challenge. thats all i have to say about that.
did you even read my post?? sorry, i wanted to use that phrase too, since it seems to be popular in this thread.



yes i read your post, and i disagreed with it. that is why i re-wrote what see as correct

there is such a thing as an SQ amp. dont believe me? go find an amp with high THD compared to an amp with signifigantly lower THD ad tell me there isnt a difference. this isnt much of an issue because pretty much every new amp has a very low THD to begin with, but still, this makes my point.

also, HE may or may not notice a difference between a class A/B and a class D amp, but there is one. this is a pretty big topic amongst the car stereo forums even right now(especially amongst real audiophiles, but they will tellyou that even the RCA's can affect the SQ
). but if you take the time and learn what distinguishes the classes of amps, the electronic components used in each class, how the current flows through each class, and how the power is made in each class, you will see that there is quite a bit that will affect the SQ of the amp. different classes of amps simply asses the power in a different fashion, low and behold when it is done in a different way, the end result is not always going to be the same.

read up on Richard Clarkes test, it is not as flawless as you might think, and it is also rather inconclusive
. richard clarke is a very smart man, but him and his test do not write the laws of audio



edit: either way, Xmann has already gotten the info he needs to make his decision, so this thread is kinda dead anyways
 

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i have read up on the test, and i wasnt even replying to you, lol. but put simply, if YOU think YOU can tell a difference, then by all means, put your money where your mout is. i can tell you right now that you will not hear an audible difference. i never said him or his test wrote the laws of audio. i am simply stating that there is not going to be an audible difference between a class d and a class a/b amp. and like i have already stated, if you think you can hear an audible difference, then take the test. what have you got to lose? no offense hoss, i understand you know a lot about this, and i guess this is just one area where we are gonna disagree
 

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Originally posted by snyper1982@Jan 27 2004, 02:11 AM
did you even read my post? he will NOT notice a difference in class d or class a/b. there is NO SUCH THING as an sq amp. if you dont believe me take the Richard Clark challenge. thats all i have to say about that.
I read your post and I disagree with you whole heartedly. Did you take the challenge or are you reading it somewhere? I have been in this business for a long time, and I am pretty sure I know what I am talking about. Richard Clark's challenge is kind of bias, and almost too scientific for street use. If you know anything about dampening factor you would change your statement.


THERE IS A DIFFERENCE BETWEEN D AND A/B!!!
 

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i understand there is a difference between an a/b and a class d. i never argued that, but i am saying that you WILL NOT HEAR an audible difference. disagree if you want, but i say the same to you, put your money where your mouth is. since you can HEAR a difference, you have nothing to lose right?
 

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QUOTE
i guess this is just one area where we are gonna disagree [/b]
definitly the best thing to do here, seeing as how we are never going to settle this one... this has been raging on car audio forums for quite some time as well. just a matter of oppinion, and for the general pupose users, they wont matter, but to a judge they will tear you up for it. but then again, SQ people think that powr wire, RCA's, and all those small things affect the sound... SQ is gay, i almost hate going into SQ competitions
.

one last thing i will say on the subject though, is that clarkes test is full of holes, cant really stand by it... it is really subjective and less conclusive.

oh yeah, no offense taken man
, as long as you dont take any from me
 
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