HIGH SPL and SQ
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Joined: Apr 2003
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From: Acworth, Ga, USA
HIGH SPL and SQ
ok i need a single sub that can pound my ***** off... but it has to have great sound quality... the most obvious choice for me is a JL W7 but is there another sub out there as good as this for cheaper? right now I have an Infinnity Kappa Perfect 10 DVC and it is not taking the 1099 watts too well... I just want something I can keep turning up and it will still sound good... my Infinnity will make a terrible snapping noise from the aluminum cones' distortion at high excursion levels... HELP!!! thx
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From: Los Angeles, CA, USA
Re: HIGH SPL and SQ (Drum_Guru)
Resonant Engineering xxx 18 with 1600 watts 
If you don't have the space the 10 xxx should be fine also.
http://www.respl.com
If you don't have the space the 10 xxx should be fine also.
http://www.respl.com
Member
Joined: Dec 2001
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From: So Cal, CA
Re: HIGH SPL and SQ (vteg)
listen to vteg.
and ask him what dimensions u should make your box if you don't have that
software stuff.
he made my ported enclosure for my 10W7.
it was great.
till it got stolen.
and ask him what dimensions u should make your box if you don't have that
software stuff.
he made my ported enclosure for my 10W7.
it was great.
till it got stolen.
Honda-Tech Member
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From: State College, PA, 16865
Re: HIGH SPL and SQ (vteg)
I asked about the MTX 9500 and one of the two who replied said they believe it's gotta sound better than the W7 also... which confirms alot of reports I heard myself.... might want to watch out for it. I think it runs around $350... I might be off on that... a plus factor is the required box size is alot smaller than an equivilent sized W7 would need
http://www.mtxaudio.com/caraud...0.cfm
http://www.mtxaudio.com/caraud...0.cfm
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From: San Francisco, CA, USA
Re: HIGH SPL and SQ (Drum_Guru)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Drum_Guru »</TD></TR><TR><TD CLASS="quote">i said it needs to sound GOOD... when 3 subs start firing, they dont go at the same time... this causes distortion... I dont like that...</TD></TR></TABLE>
I'm not going to comment on this one....
My vote is in my sig...IDMAX.
EDIT:
I just can't leave well enough alone...gotta educate!
If all of your subs are wired to the same channel, they will "fire" at the same time. In fact, unless some phase shift of polarity change has been added to the signal change, all of your subs (regardless of what is powering them) will see the same signal, therefore "fire" at the same time.
Now, it is possible that if you have multiple subwoofers, you will have different path lengths. The pathlength is the distance from the voicecoil to your noggin. This will create a situation of the sound waves reaching your ears at slightly different times, but because bass notes (commonly reproduced by subwoofers) are so large and long, these minor differences (a fraction of a foot) will not be noticable.
Now you mentioned the word distortion. Let's keep box designs the same, and assume you are using a sealed box - it makes the discussion easier. The only way to make spl is to move air, and lots of it. The only way you can move more air is to do one of two things:
1. increase the size of the piston (i.e. more surface area on the cone)
2. increase the stroke of the piston (i.e. a longer throw or xmax)
The new SQL subs (ones that sound good but get loud too) have approximately the same cone size as their SQ brothers. This means that they have cranked up their XMAX to move more air. Most have hurt the cone size by using those rediculous surrounds (some have gotten around it with new designs). As the oscilates, the further it is displaced, the more distortion is created.
This means that if you have multiple subwoofers, they don't have to work as "hard" as the single sub does to displace the same ammount of air. There are added benefits too, but I won't get into them.
Therefore, you have LESS distortion by using multiple subwoofers....
Modified by rcurley55 at 7:17 PM 10/9/2003
I'm not going to comment on this one....
My vote is in my sig...IDMAX.
EDIT:
I just can't leave well enough alone...gotta educate!
If all of your subs are wired to the same channel, they will "fire" at the same time. In fact, unless some phase shift of polarity change has been added to the signal change, all of your subs (regardless of what is powering them) will see the same signal, therefore "fire" at the same time.
Now, it is possible that if you have multiple subwoofers, you will have different path lengths. The pathlength is the distance from the voicecoil to your noggin. This will create a situation of the sound waves reaching your ears at slightly different times, but because bass notes (commonly reproduced by subwoofers) are so large and long, these minor differences (a fraction of a foot) will not be noticable.
Now you mentioned the word distortion. Let's keep box designs the same, and assume you are using a sealed box - it makes the discussion easier. The only way to make spl is to move air, and lots of it. The only way you can move more air is to do one of two things:
1. increase the size of the piston (i.e. more surface area on the cone)
2. increase the stroke of the piston (i.e. a longer throw or xmax)
The new SQL subs (ones that sound good but get loud too) have approximately the same cone size as their SQ brothers. This means that they have cranked up their XMAX to move more air. Most have hurt the cone size by using those rediculous surrounds (some have gotten around it with new designs). As the oscilates, the further it is displaced, the more distortion is created.
This means that if you have multiple subwoofers, they don't have to work as "hard" as the single sub does to displace the same ammount of air. There are added benefits too, but I won't get into them.
Therefore, you have LESS distortion by using multiple subwoofers....
Modified by rcurley55 at 7:17 PM 10/9/2003
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New User
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From: Los Angeles, CA, USA
Re: HIGH SPL and SQ (rcurley55)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rcurley55 »</TD></TR><TR><TD CLASS="quote">
I'm not going to comment on this one....
My vote is in my sig...IDMAX.</TD></TR></TABLE>
You know about that problem with odd subs. They are always causing problems.
I'm not going to comment on this one....
My vote is in my sig...IDMAX.</TD></TR></TABLE>
You know about that problem with odd subs. They are always causing problems.
Honda-Tech Member
Joined: Oct 2002
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From: State College, PA, 16865
Re: HIGH SPL and SQ (vteg)
typically an odd amount of subs will have more output than an even set... that's why you can see the dB Drag results and have 3 sub setups beating out 4 sub setups, less cancelation with an odd amount of subs
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never heard odd number of subs having an advantage over an even setup.
4 subs should displace more air (obviously) than 3 subs, using the same subs for each setup. 4 is bigger than 3, unless there was something my 1st grade teacher left out. lol
4 subs should displace more air (obviously) than 3 subs, using the same subs for each setup. 4 is bigger than 3, unless there was something my 1st grade teacher left out. lol
Honda-Tech Member
Joined: Oct 2002
Posts: 3,028
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From: State College, PA, 16865
Re: (GSteg)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GSteg »</TD></TR><TR><TD CLASS="quote">never heard odd number of subs having an advantage over an even setup.
4 subs should displace more air (obviously) than 3 subs, using the same subs for each setup. 4 is bigger than 3, unless there was something my 1st grade teacher left out. lol</TD></TR></TABLE>
but with an even amount, typically, more cancelation can/will occur.
4 subs should displace more air (obviously) than 3 subs, using the same subs for each setup. 4 is bigger than 3, unless there was something my 1st grade teacher left out. lol</TD></TR></TABLE>
but with an even amount, typically, more cancelation can/will occur.
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