infinity vq vs mtx 7500
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=107347
Printed Date: May 10, 2025 at 6:43 PM
Topic: infinity vq vs mtx 7500
Posted By: MikeHusain
Subject: infinity vq vs mtx 7500
Date Posted: September 10, 2008 at 6:04 AM
Any body ever heard the two. I would like to get two 12's. Not sure which set though. I have 800 watts rms to play with. Also a box already made for 2 12's with 2.8 cubic feet sealed. Any suggestions. Thanks.
Replies:
Posted By: haemphyst
Date Posted: September 10, 2008 at 9:58 AM
What do YOU want? Quality or quantity? One or the other. 1.4 cubes each might be a little bit big for either one of them, also. Additionally, if that box isn't divided, it should be. Common volumes for sealed enclosures is almost ALWAYS a very bad idea.
Is it REALLY 800WRMS? What amp do you have?
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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: MikeHusain
Date Posted: September 10, 2008 at 6:10 PM
I am looking more for quality with a little thump. I know infinity is more of a sq and mtx more of a spl, I would like to have a little of both. I have a MTX 801D amp. And yes the enclosure does have a common volume space. The only time it is nessary to separate chambers is if you are running each sub off a separate channel. There is a possibility of signal difference between the two outputs, and can cause distortion. Otherwise it is fine to share same chamers if only they are bridged. Please inform me as to why it is not recommended. Thanks..
Posted By: craig dennis
Date Posted: September 11, 2008 at 1:17 AM
i can see both sides to this argument so ill through my change in also. you are right in a perfect world one common chamber will be louder in general even than 2 seperate ones. however no matter what each woofer is a little different whether it be the amount of play time leading to a weakend suspension system or just varying impedance. these variables can cause strain on one another and is magnified by that common chamber which in all honesty is to large in the first place. the fact that its to large als is another reason i would not run one chamber the spring effect is deminished by the over abundance of extra air space. so u both are right only one is more right i guess especially in this instance. ( you can also run 2 woofers in one chamber of 2 amps things just need to be tested and set right by the way)
Posted By: haemphyst
Date Posted: September 11, 2008 at 2:09 AM
What happens of one woofer fails? Now the other woofer is in an enclosure that STARTED OUT too big, and it's suddenly attached to a drone cone, instantly forming a Helmholtz resonator (vented enclosure) tuned WAY WAY WAY too low, and you run the risk of physical damage to the remaining woofer. If you happen to be running WFO when it happens, that second cone is going to fail almost immediately, if not, at least bang against the stops REALLY hard, causing pretty nasty physical damage!
Common enclosures are ALWAYS a bad idea.
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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: MikeHusain
Date Posted: September 14, 2008 at 5:51 PM
Well I am currently modifiy the enclosure I have, but I am still wondering what subs to get. I was looking at the W3V3's. Any comments on those subs? Thanks
Posted By: megaman
Date Posted: September 14, 2008 at 10:11 PM
between the mtx, infinity and now you throw in the JL W3's... Hands down, without a doubt, or hesitation... go with the JL W3's. More output than the Infinity VQ and way more musical than the mtx. actually, musical and mtx shouldn't be in the same sentence.
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