2 8"s doing 144 dbs--------------------------------
09-15-2004, 01:23 AM
#1
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2 8"s doing 144 dbs--------------------------------
http://www.splbassx.com/forums/index.php?showtopic=1573
just goes to show: everything is in the install. By the way, those xsite 8's can be had for 3 dollars.
just goes to show: everything is in the install. By the way, those xsite 8's can be had for 3 dollars.
09-15-2004, 11:05 PM
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If this was posted on the DB drag website, they would all laugh at u, NO WAY will 400 watts make u hit a 144, I saw a guy at a DB drag show with 24 MTX 8" woofers hit a high 140. Yes I said 24 8" woofers. My other buddy has a Digital Designs 15" in a box so huge 2 kids could fit in it and crawl out the port, and he is pushing 8,000 RMS and only hits a low 150. Check out the American Bass car that I believe set the record last year at finals- 177.7 Something to think about.
Where did they get the meter to measure that, the meters alone run from $700-$1000?
Where did they get the meter to measure that, the meters alone run from $700-$1000?
09-16-2004, 12:38 AM
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first, it's in a crx, second, if the box design sucks ____, then it doesn't matter how big the box is. 24 8"s suffocated in some astro wont sound as good as 2 that have plenty of room in a crx.. and ____. if the mic isn't a TL, if it's an AC, then it would still be doing 135's and with 2 3 dollar subs that's impressive.
09-16-2004, 12:44 AM
#5
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its all about the install and yes way too many people over look that aspect of it! I have a 92 astro van with 12 arc audio 12" that does a consistent 164-165 both usac and db drag and in the past I have had a crx with 1 strocker 18 running a linear power 4.1 hv and that car consistently did between 152-156 depending on the meter. There is also a guy that used to compete with a old civic, first body style with only 1 10 dd woofer and if I remember right 2 dei amps, once again its all about the install
10-06-2004, 11:29 PM
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I ran 2 RE MT 18's hooked to 4 Atomic 1500.1's gains maxed, 5 yellow tops and metered 163.1. Had a guy pull up next to me in a modified truck running 8 of those same MTX subs, and I just laughed my head off.
Like the replies before, it is all in the install, and as for metering, it's all in the meter. A 144 on an AC mic isn't as impressive as a 144 on the new T/L. But can 8's do it, absolutely.
Kind Regards,
Matt
Like the replies before, it is all in the install, and as for metering, it's all in the meter. A 144 on an AC mic isn't as impressive as a 144 on the new T/L. But can 8's do it, absolutely.
Kind Regards,
Matt
10-07-2004, 02:52 PM
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I'm not sure but seems like b.s. floating around in here. I am not an expert but two
8's that cost less than $10.00 hitting 144?What the hell would be the point of
24 8's that can only hit low 140's? What the hell is the point of running 8,000 rms (bs) to one 15"? Sounds like people with too much time to make up ____ or too much
money to waste on stupid ____.
By the way I had 6 8's that hit 142 in an Ext. Aerostar. I don't know what kind of mic
but it was measured on the dash in a competition.
8's that cost less than $10.00 hitting 144?What the hell would be the point of
24 8's that can only hit low 140's? What the hell is the point of running 8,000 rms (bs) to one 15"? Sounds like people with too much time to make up ____ or too much
money to waste on stupid ____.
By the way I had 6 8's that hit 142 in an Ext. Aerostar. I don't know what kind of mic
but it was measured on the dash in a competition.
10-07-2004, 03:12 PM
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Originally Posted by Naes
I'm not sure but seems like b.s. floating around in here. I am not an expert but two
8's that cost less than $10.00 hitting 144?What the hell would be the point of
24 8's that can only hit low 140's? What the hell is the point of running 8,000 rms (bs) to one 15"? Sounds like people with too much time to make up ____ or too much
money to waste on stupid ____.
By the way I had 6 8's that hit 142 in an Ext. Aerostar. I don't know what kind of mic
but it was measured on the dash in a competition.
8's that cost less than $10.00 hitting 144?What the hell would be the point of
24 8's that can only hit low 140's? What the hell is the point of running 8,000 rms (bs) to one 15"? Sounds like people with too much time to make up ____ or too much
money to waste on stupid ____.
By the way I had 6 8's that hit 142 in an Ext. Aerostar. I don't know what kind of mic
but it was measured on the dash in a competition.
10-07-2004, 03:24 PM
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Originally Posted by Naes
I'm not sure but seems like b.s. floating around in here. I am not an expert but two
8's that cost less than $10.00 hitting 144?What the hell would be the point of
24 8's that can only hit low 140's? What the hell is the point of running 8,000 rms (bs) to one 15"? Sounds like people with too much time to make up ____ or too much
money to waste on stupid ____.
By the way I had 6 8's that hit 142 in an Ext. Aerostar. I don't know what kind of mic
but it was measured on the dash in a competition.
8's that cost less than $10.00 hitting 144?What the hell would be the point of
24 8's that can only hit low 140's? What the hell is the point of running 8,000 rms (bs) to one 15"? Sounds like people with too much time to make up ____ or too much
money to waste on stupid ____.
By the way I had 6 8's that hit 142 in an Ext. Aerostar. I don't know what kind of mic
but it was measured on the dash in a competition.
10-09-2004, 03:01 PM
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Originally Posted by jdaniels
And you, Sir, officially made it on my "Audio Incompetence" list.
Look guys, a well known addage in the car audio world is "A system is 90% install." It's true, most people just build a box that they *think* will be good or theyre told will be. People like the ones that are throwing up those numbers with two $3 subs know what theyre doing and make a system to optimize the potential of a driver. It's not all about the box, it's about the box placement(which way it's facing, where it's at in the car), it's about the car, seat up/down, so on and so forth.
What's the point of 24 8's and all that other stuff? Because when they open their car up, even if it sounds like ___ and can't hit astounding numbers, most people will go "wow." That's the point. And on top of that, tossing in a ton of subs is way easier than doing all the testing required to make $6 worth of subs hit the same numbers.
10-12-2004, 10:31 PM
#14
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People have to remember that each car is different in its accustical make up. I sup in a trunk is not going to hit as hard as sub in a hatch. Yes the install is a major factor in that in a car you must try and recreate what you hear on stage. Time alignment between each speaker etc. The vehical also plays a factor. My first set up in a 85 gti was 2 JL Audio 10w0 in a band pass box with an old ___ rockford 30/2 no fan bridged to 1ohm. Back when Rockford actually mad decent stuff. My car essential became one big speaker. People would laugh there asses off when they heard the car and then I told them what was pushing the 10's.
Just remember many factors play a roll in a good sounding SPL or SQ system.
I knew a guy who ran 10 6x9" in an Isobaric/bandpass design and hit hard and lower then most systems at the time.
Just remember many factors play a roll in a good sounding SPL or SQ system.
I knew a guy who ran 10 6x9" in an Isobaric/bandpass design and hit hard and lower then most systems at the time.
10-12-2004, 11:21 PM
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do u realize that if u have 10 12" subs in an xB, it would sound like trash and not be as loud as 2 of the exact same subs?
two 8's in a CRX can EASILY hit 144.....i have no doubts that a single ten could be louder even....
Jeff
two 8's in a CRX can EASILY hit 144.....i have no doubts that a single ten could be louder even....
Jeff
10-13-2004, 01:54 PM
#18
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I believe it, b/c I've seen something similar before. I had 1 12" Aluminum Eclipse sub on 1200 watts in a regular cab Silverado...it hit HARD. Then a friend pulls up in his wife's car thumpin just as loud as my system, so of course I had to check it out. He had 1 6.5" Radio Shack speaker in the most ghetto looking box I've ever seen...no carpet or anything, he had just built it. I didn't believe him, I had to look for more audio, but that was it. He was an audio genius and knew his ____ when it came to building boxes.
-Z
-Z
10-13-2004, 04:07 PM
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Originally Posted by jdaniels
Originally Posted by Naes
I'm not sure but seems like b.s. floating around in here. I am not an expert but two
8's that cost less than $10.00 hitting 144?What the hell would be the point of
24 8's that can only hit low 140's? What the hell is the point of running 8,000 rms (bs) to one 15"? Sounds like people with too much time to make up ____ or too much
money to waste on stupid ____.
By the way I had 6 8's that hit 142 in an Ext. Aerostar. I don't know what kind of mic
but it was measured on the dash in a competition.
8's that cost less than $10.00 hitting 144?What the hell would be the point of
24 8's that can only hit low 140's? What the hell is the point of running 8,000 rms (bs) to one 15"? Sounds like people with too much time to make up ____ or too much
money to waste on stupid ____.
By the way I had 6 8's that hit 142 in an Ext. Aerostar. I don't know what kind of mic
but it was measured on the dash in a competition.
Even a rudimentary calculation can prove the fallacy of these dB numbers. An ordinary 30W/channel system can produce 100dB in a car. Each 3dB represents a doubling of power, so 144dB would represent 14.6 doublings of power. Take 30W and multiply it by 2^14.6 and you'll get 780,000W. Yep, that's 780kW of power (per channel) needed to sustain this dB level. With two channels, that's well over a megawatt! You're running from 12V, so the current required is a paltry 130,000A! Better have some BIG bus-bars to provide that sort of current!
George