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OCN Speaker Club - Page 188

post #1871 of 3865
Quote:
Originally Posted by pioneerisloud View Post
Right NOW, I'm hitting around 135dB at 40Hz due to the cabin gain in my car. I hit the 27Hz note in Put On fluidly though. And that's just with a single Type R 12" off 300w RMS.

I don't have the Fi's yet. I won't have them for quite some time, and I'll likely change my design again by then. I still have motor work and body work to do first .
That's damn good SPL's for music imo. I still don't get how i can push 120db at 20Hz with no distortion and only 400 watts lol.

some day later on down the road, in my mom's old 93 DSM eclipse in which I'll upgrade, I'll stick two 15 inch monster subs in it, possibly the TC sounds 15 inch drivers, along with a new 4G63 2L motor which will be rebuilt, Turbo'd like none other. I may do an AWD conversion seeing as this is the cleanest 93 Eclipse Iv'e laid my eyes on in years, and I grew up in it.

I might stick a crappy 12 inch sub in my 1997 Buick riviera, problem is most cheap subs sound like crap. Funny how if the engine of the 3800 series II is rebuilt properly and turbo'd, you can get from 400-up to 700whp. This makes me wonder why GM never made a supercar out of the Bonneville. I don't see myself upgrading the Rivvy too much. I'll just drive it till it falls apart
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post #1872 of 3865
It's all dependent on the box, you can make the worlds worst driver sound like god built it himself.
The 2 12" Re SE sub run about a 138-141 :/ Need to build a new box for them but don't have the money for it.Trying to convince my brother to get a new amp cheapo crunch 1200.2 sounds like crap, got it for like 50 bucks.
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post #1873 of 3865
I would like to join!!! I have a Sony MU-TE-KI 1000W RMS Trance PRO.



Edited by deathconfess - 1/21/11 at 10:39am
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post #1874 of 3865
1000W RMS lol thats pretty funny:lachen:
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post #1875 of 3865
Quote:
Originally Posted by pioneerisloud View Post
MDF is just the most common used type of material for enclosures. There's a really high density wood that's really expensive that's actually better. However, what it is escapes my mind right now (I want to say Ash, but I know that's not right).

And you don't need 1" thick material for speakers, or even a subwoofer. 3/4" is more than enough, 1/2" for less powered drivers is fine even. You don't need 1" thick material until you break over 1000w RMS on a subwoofer honestly.
Yes you are correct to a point. When you say 3/4inch is more than enough for a sub woofer, you are talking low end junk correct? Car audio usually uses this because its cheap and sound quality and good bass does not matter. Loudness is the only thing on the mind.

As for home audio, anything less than 3/4inch for a sub woofer is unacceptable. Also bookshelf speakers should be minimum 3/4inch. Less resonance and wasted energy in the box will result in a better sound, not to mention louder. Think about it, if your box is vibrating, then that energy is being wasted instead of moving air.

Currently my sub woofer is using double laminated 3/4inch mdf for all sides so 1.5 inch. And the front baffle is 2.25 inches. This is only a 18, 1000watt sub.

Ever wonder why more expensive speakers and sub woofers are much heavier and use thicker wood or in some cases metal?

Also your misconception that more wattage means its needs a bigger box is wrong. Our where did you find this information? The sub woofers I build even at 150watt use nothing less that 3/4 with heavy bracing to compensate for weaker walls. There is too much vibration and resonance in the box with anything less.

Again, this is home audio were SQ and response matters. For car audio your theory may be correct, but for the home audio DIY or buyer, its not.
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post #1876 of 3865
Plenty of CAR audio can be used in home theater and have nice flat response curves actually, if you know how to design proper boxes.
3/4 inch for BOOKSHELVES will always be overkill unless you have put in a dedicated low frequency driver which usually is only done with TOWERS(in which case yeah 3/4 inch is great to be using)
Especially when using under 20 watts of power, 20 watts isn't going to be bending too much 5/8 or 1/2 inch bookshelves they're small enough to need minimal bracing on the side panels.
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post #1877 of 3865
Quote:
Originally Posted by Darkapoc View Post
Plenty of CAR audio can be used in home theater and have nice flat response curves actually, if you know how to design proper boxes.
3/4 inch for BOOKSHELVES will always be overkill unless you have put in a dedicated low frequency driver which usually is only done with TOWERS(in which case yeah 3/4 inch is great to be using)
Especially when using under 20 watts of power, 20 watts isn't going to be bending too much 5/8 or 1/2 inch bookshelves they're small enough to need minimal bracing on the side panels.
That and if you design a subwoofer box correctly, 3/4" is usually enough until you start getting into big power.
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post #1878 of 3865
Quote:
Originally Posted by spice003 View Post
1000W RMS lol thats pretty funny
seriously... 4x250w... i dont think your very farmiliar with the MU-TE-KI systems, some reach up to 5000 watts. however my system was only $800, some of the MU-TE-KI systems reach thousands of dollars.

check this system. 7.2 channel 1600w. besides, its not like i have a $50 logitec system >.> lol
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post #1879 of 3865
Quote:
Originally Posted by deathconfess View Post
seriously... 4x250w... i dont think your very farmiliar with the MU-TE-KI systems, some reach up to 5000 watts. however my system was only $800, some of the MU-TE-KI systems reach thousands of dollars.

check this system. 7.2 channel 1600w. besides, its not like i have a $50 logitec system >.> lol
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post #1880 of 3865
Quote:
Originally Posted by deathconfess View Post
seriously... 4x250w... i dont think your very farmiliar with the MU-TE-KI systems, some reach up to 5000 watts. however my system was only $800, some of the MU-TE-KI systems reach thousands of dollars.

check this system. 7.2 channel 1600w. besides, its not like i have a $50 logitec system >.> lol
http://emotiva.com/xpa1.shtm

Notice the 75lbs? and the size? So you still think that little thing can do nearly that? Do not fall for false ratings. Its more like under 50watts.
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