Just wondering....

[Jeremiah25 10+ year member]

I get amused by these arguments really. So many people fail to realize that SQ is subjective, and not everyone looks for the same output out of an audio system. Some people are bothered by a peaked frequency response that will vary more than a dB or so across a broad frequency range, while others are not. Some are perfectly content as long as nothing is severly distorted. In my opinion it all depends on your goals, and this is evident by the vast majority of opinions on the subject.

Resonance (DD) makes a great woofer, but it is a little hard to get a flat frequency response out of it, especially if you extend the range of testing down below the range of sound found in the majority of music. Some people are very concerned about sound at 10hz, and if that's you then a DD probably isn't the sub for you. I personally have no idea why anyone would be concerned about those extremely low frequencies in a car audio environment. With home theater I could possibly see it, but not really for car audio.

From 35-120+ hz the resonance subs will perform very well. You can make them extend lower if you put some elbow grease into it. I've built boxes that extended down into the 25hz range well, with minimal rolloff. That range would probably cover 99.999999% of the songs ever made, and 100% of the songs that I would listen to, so I'm perfectly content with my resonance built subs, but I will admit it took alot of work to get them to perform well in the lower bass shelf. I've worked with other brands of subs that would do it with much less effort.

 

[Chevyaudio 5,000+ posts]

last time I checked...I couldnt hear 10Hz...

and being that Im not making a home theater in my car, I dont think I will need to reproduce 10hz...even orchestral rarely gets that subsonic.

 

[spluvs2install 10+ year member]

warbleed, you must not know jack *** about speaker design if you are saying the DD 1008 is a crappy fart box sub! You must be one of those guys who kiss JL audio or something. Either way, go grab an RE 8in sub and I'll grab a DD 8in sub and we'll see who wins, how about that. I don't understand why your such a hater on a product.//content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif

 

[tommyk90 5,000+ posts]

In USACi it was rated as a 150 watt amp at the same time they called a DD M1 a 150 watt amp...FYI USACi uses a 4 ohm rating system at the time.....most people ran way more power than I did...and more power than I still do...Thats the great thing about DD's ...they don't need a lot of power to get loud...Playing with a single DD 2510 I was getting high 140's street beat with just 900 watts....on the term lab in my CRX

I don't care what its "rated" at, the fact is that you are getting way more than the rated power. So I'm sick of you saying "I have a 300 watt setup", when all know d*mn well that its 3-4 times that much ACTUAL power.

Let's not start this argument again.

Thats why I like streetbeat also. No stupid *** 4 ohm power ratings. SB1 anyone? //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Louisiana_CRX 5,000+ posts]

I just enter as to Ralphs Rules...if there were other organizations to compete in in my area I'd move over to those...but since USACi is all that is offered I have no choices...I just go for the fun of it anyway....after every show I change up my setup...for something different...I see some people compete with the same thing over & over ...to me I see no point in that....But i'm like you i think that wishey washey rating crap that changes from show to show...they let one person run the amps bvut they won't let others is crap....That is why I quit SS...and went to Street Beat...now i can build a system for fun //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[tommyk90 5,000+ posts]

I just enter as to Ralphs Rules...if there were other organizations to compete in in my area I'd move over to those...but since USACi is all that is offered I have no choices...I just go for the fun of it anyway....after every show I change up my setup...for something different...I see some people compete with the same thing over & over ...to me I see no point in that....But i'm like you i think that wishey washey rating crap that changes from show to show...they let one person run the amps bvut they won't let others is crap....That is why I quit SS...and went to Street Beat...now i can build a system for fun //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

American bass anyone?

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[Louisiana_CRX 5,000+ posts]

or Atomic 1500's...//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif lol

 

[tommyk90 5,000+ posts]

or Atomic 1500's...//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif lol

I just find it funny how you can use one AB VFL 400.1 (4000+ watts) or one kicker zx1000.1 (1000 watts) and be put into the same class because of the 4 ohm rating system.

Sounds like somebody *cough*ralph*cough* got a little payoff from AB. //content.invisioncic.com/y282845/emoticons/greedy.gif.5a53e6246569d7ab79867170f3b06629.gif

 

[wolfman1966 10+ year member]

so, my RE8's are actually SPL subs?

 

[95stroked1500 10+ year member]

no!

and don't just look at displacement diff's meaning they will be louder. a lot of people seem to forget/don't know the other half of the physics equation that needs to be factor'd in.

 

[Warbleed 10+ year member]

warbleed, you must not know jack *** about speaker design if you are saying the DD 1008 is a crappy fart box sub! You must be one of those guys who kiss JL audio or something. Either way, go grab an RE 8in sub and I'll grab a DD 8in sub and we'll see who wins, how about that. I don't understand why your such a hater on a product.//content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif

lol. You don't even know what you are talking about kid. I never said the 1008 was a crappy fart box sub, but thats the ONLY thing it's going to best the RE 8 at.

Displacement dictates linear output. The 1008 has less displacement, thus, less linear output, and higher overall distortion.

Honestly, if you think one DD 1008 will even come close to the linear output of TWO RE 8s (remember, that's what our rabid dd fan above claimed), you are a fool, and you honestly don't understand how speakers work at all.

Since you're too simple minded to realize you made a strawman out of what I ACTUALLY said, and then attempted to argue against that point, has if that was actually the point I made. Let's break down your brilliant 3rd grade educated "logic" (I use the term loosely in this context):

My claim:

The only thing that the DD 1008 bests the RE 8 at is at bass farting.

Your incorrect and grossly inaccurate misinterpretation of my claim:

The only thing the DD 1008 is good at is bass farting.

See that? "Only thing the DD is BETTER than the RE at is bass farting" vs. "The DD is only good at bass farting"

You're feeble little mind confused the two, because you don't know how to think like an intelligent, rational person. I felt it was necessary to expose the failures in reasoning that occurred within your worthless head, for my own amusement and for the amusement of everyone else here, as well as to point out what I did, and what I most certainly did NOT say.

Thanks for playing kid, you just got owned.

P.S. It's you're, which is short for you are, not your, which is the possessive form. Learn to English.

 

[Warbleed 10+ year member]

no!
and don't just look at displacement diff's meaning they will be louder. a lot of people seem to forget/don't know the other half of the physics equation that needs to be factor'd in.

Given the same alignment, the driver with more displacement is capable of more LINEAR output. That's not open to debate or interpretation, it's a fact. It's easily verified with any scientific output testing, always has been, always will be. If you think otherwise, please realize that you are mistaken.

Now obviously that doesn't mean the driver with the higher displacement will be louder in ALL situations and at ALL frequencies, as obviously we can take a lower displacement driver and tune it to a high frequency while we have the higher displacement driver in a flat reponse alignment and get more SPL from the lower displacement driver at or near tuning, but that's about it.

Non linear SPL isn't predicted accurately by linear displacement, because it isn't remotely linear, but when we are talking about linear output, i.e. the only thing output we're going to be using with music, then displacement is still king, assuming you are actually utilizing it.

The RE 8 outdisplaces the DD, thus in a similar alignment, it is going to produce more linear output than is the DD.

 

[bigbassman Premium Member]

teammate does 147s with a single RE 8 and 550 watts

I've gotten a 150 out of one with 1.2kw...

they loud.. only thing I've tested louder was the W7 8... which is top of the pile in the 8 department for me currently...

one day, If I come across the DD 8.. I've got a bandpass waiting for it.. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Loyd L.

 

[Louisiana_CRX 5,000+ posts]

Sounds like you need to get your hands on a DD 8 since they have already been tested louder than the JL W7 8 //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[wolfman1966 10+ year member]

teammate does 147s with a single RE 8 and 550 watts
I've gotten a 150 out of one with 1.2kw...

they loud.. only thing I've tested louder was the W7 8... which is top of the pile in the 8 department for me currently...

one day, If I come across the DD 8.. I've got a bandpass waiting for it.. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Loyd L.

I may be fairly new to car auido, but I have to pull the BS CARD on this one. Sorry bigbassman, but the RE* is only rated 175watts rms. I cant beleive one would take 550 and I know there's no way it could take 1.2kw