aculous Posted February 2, 2015 Report Posted February 2, 2015 Sorry, did not mean to make this a complicated post. The reason I asked is because I was wondering how decent the JBL GTO subs are; they use a polypropylene woofer; I battled with the idea of running 4 of the 10" or maybe 12" ones if I could fit them. But it is hard to persuade me to change from running a pair of 12" AA Chaos...idk...first world probs right lol hah you didn't, we did. I would go with the AAs. Depends on what you listen to and how you're setup. Dubstep mainly, but also, mainstream pop stuff. And setup: I have a RF T1500 amp not cp model. I would prolly wire AAs to 0.5 or if i got the JBLs then I would ire to 1ohm. meh I would ditch the JBL idea. Fi or Psi if you can't afford the AAs. JBL doesn't have a lot of bad products I just wouldn't run their subs unless it was a pro audio application. I hear ya man, I really wanted to run the JBL Gtti MKII, that thing looks beastly. But I would only be able to wire down to 1.5ohms. So I would have to get another amp down the road... The AAs are cheaper and I could instantly wire to 0.5ohm hah, well .5 is hard on a amp. Hell 1ohm is hard on an amp. Rockford puts out a good product but if you are daily driving that thing, just because it CAN do .5 ohms doesn't mean it will do it all day every day for years. Just a thought.
Guest Posted February 2, 2015 Report Posted February 2, 2015 Sorry, did not mean to make this a complicated post. The reason I asked is because I was wondering how decent the JBL GTO subs are; they use a polypropylene woofer; I battled with the idea of running 4 of the 10" or maybe 12" ones if I could fit them. But it is hard to persuade me to change from running a pair of 12" AA Chaos...idk...first world probs right lol hah you didn't, we did. I would go with the AAs. Depends on what you listen to and how you're setup. Dubstep mainly, but also, mainstream pop stuff. And setup: I have a RF T1500 amp not cp model. I would prolly wire AAs to 0.5 or if i got the JBLs then I would ire to 1ohm. meh I would ditch the JBL idea. Fi or Psi if you can't afford the AAs. JBL doesn't have a lot of bad products I just wouldn't run their subs unless it was a pro audio application. I hear ya man, I really wanted to run the JBL Gtti MKII, that thing looks beastly. But I would only be able to wire down to 1.5ohms. So I would have to get another amp down the road... The AAs are cheaper and I could instantly wire to 0.5ohm hah, well .5 is hard on a amp. Hell 1ohm is hard on an amp. Rockford puts out a good product but if you are daily driving that thing, just because it CAN do .5 ohms doesn't mean it will do it all day every day for years. Just a thought. Well, my thought was with box rise it would be at least 1 ohm anyways.
SQL50 Posted February 2, 2015 Report Posted February 2, 2015 I've proved my point, performance can branch off into spl levels and all sorts of stuff. I said sound (tone). & from my personal experience I can't notice anything. Here's a source if you need it.. http://www.data-bass.com/myths
IH8PunkRok Posted February 2, 2015 Report Posted February 2, 2015 The material absolutely affects the tone. If you think otherwise perhaps you should stop thinking. Perhaps it is much less obvious in bass frequencies but you can sure as Hell hear it in tweeters and midranges -Matt2005 Dodge Magnum RTJVC KD-AVX1 2 PPI S580.2 Obsidian Audio ST1 Horn Tweeters PRV 8MB450s Audio Legion 3500.1D 2 RE MT 18s 360 ah LiFePO4 BatterySHCA 2/0 155.2 @ 29 hzKicker CVR 15's buildDD 3512e buildMini T-Line Build(6) 8s BuildNightshade 15s Wall BuildMagnum AB XFL 12s BuildNewest Magnum Build
BoomZoom808 Posted February 2, 2015 Report Posted February 2, 2015 I agree thats why the better poly cone speakers are composites or mineral filled. 2010 Mazda 3s 2.5L Pioneer DEH-X9600BHS Knu OFC 1/0 SS Platinum AGM / XS Power XP750 Alpine PDX F-4 / Morel Maximo 5 + Coax 5 IA 10.1 / SSA XCON 12
SQL50 Posted February 3, 2015 Report Posted February 3, 2015 In speakers & tweets, hell yeah. Were talking about subwoofers here, and your not going to notice a difference period. If someone wants to bring a legit test (subwoofers) under the correct circumstances, I live in Newport, AR, pack a lunch & come on down. I would like to hear it.
Krakin Posted February 3, 2015 Report Posted February 3, 2015 Materials doesn't effect the sound of the woofer, if your judging based off of that route. Polypropylene is a sturdy material, so I don't see it being a bad material for a subwoofer cone. It ever does so affect the sound of a sub, as well as all speakers ever made. Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener.
MrSkippyJ Posted February 3, 2015 Report Posted February 3, 2015 How would this be tested? You would have to have 2 identical subwoofers except for the cone. I still don't see how they would sound the same though. F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69
Krakin Posted February 3, 2015 Report Posted February 3, 2015 It doesn't matter what frequency you play you will still get the resonance of the material used. Polypropylene is reasonably rigid, has inherently high internal damping, and is totally non-hygroscopic. Without a particularly high stiffness to weight ratio. Other materials such as aluminum or Kevlar-backed have a slight ring to them as it is the materials nature to resonate as such. Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener.
MrSkippyJ Posted February 3, 2015 Report Posted February 3, 2015 It doesn't matter what frequency you play you will still get the resonance of the material used. Polypropylene is reasonably rigid, has inherently high internal damping, and is totally non-hygroscopic. Without a particularly high stiffness to weight ratio. This is what I was thinking, without the technical terms though. In my mind, if cone material is that important to all other speakers, why would it not be important to subs? F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69
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