Mach 1000 sub enclosures?

circuit city sells a Q-logic version. Ask about it they have to special order it and its a little pricey. Also search online for it. Search for Q-logic thats the only one i know that makes it for sure
 
whats a band pass? I am trying to keep it looking as stock as possible. I am changing the stock HU but I will be keeping the rest of the system. I'm thinking about adding the sub, since a friend of mine has an amp he's giving me. So whats better one speaker or two, and which way should they face and why?
 
eddienyr said:
whats a band pass? I am trying to keep it looking as stock as possible. I am changing the stock HU but I will be keep the rest of the system. I'm thinking about adding the sub, since a friend of mine has an amp he's giving me. So whats better one speaker or two, and which way should they face and why?
A bandpass is a ported encloseure.Ported extends low bass frequencies,but a sealed box gives tighter bass.The number of speakers depends on your preference and the way they face is your choice too,since bass is non directional,
http://www.carstereopro.com/enclosures/mustang.htm
these run about 249.00 and will saound way better then a Mach woofer.
 
iskwezm said:
Ported extends low bass frequencies,but a sealed box gives tighter bass.


Wrong answer. A sealed box can play linearly all the way down to a DC input. A ported box can be tuned around the accoustical response of the chamber it will be playing in, or to give the most output at a car's resonant frequency. No one box will give you tighter bass as a generalization- it's all in the install.

OP, JLAudio also makes a Stealthbox that's more similar to the MACH 1000 enclosure than the MTX, but it will sound and cost almost the same. If you can find a MACH enclosure and match your own decent woofers to it, it will probably be a bit better, but the enclosures themselves aren't that well made. They aren't rigid enough to not resonate and color the sound on their own. Check with a custom shop about a fiberglass enclosure tucked into the corner. Or, you could consider an Infinite Baffle setup hanging from the rear deck in place of the useless rear speakers. But, that opens another whole discussion on the benefits/problems of that sort of alignment. :damnit:
 
Infinity02Zinc said:
Wrong answer. A sealed box can play linearly all the way down to a DC input. A ported box can be tuned around the accoustical response of the chamber it will be playing in, or to give the most output at a car's resonant frequency. No one box will give you tighter bass as a generalization- it's all in the install.
Please dont correct unless your sure of what your saying,I have been in the audio industry way too long.Check any book,site or whatever else and correct yourself.

Ported-A fourth order enclosure (vented box) is a sealed enclosure with the additon of a port tuned to a specific frequency. The port extends the low frequency response of the basic sealed enclosure usually providing a lower cut-off frequency.

Crutchfield-A sealed box with a compatible sub produces tight, accurate bass. A ported (or vented) box delivers more output, with a higher "boom" factor.
 
Sorry, Infinity02Zinc, but I agree with iskwezm on this one. A sealed box definitely provides tighter, more accurate bass than a ported one (but obviously requires more power for the same volume). If you're after quality sound inside the cabin, use sealed. If you're after volume out of the trunk, use ported.
IMO
 
You guys are silly. Please think a minute. "Tighter"- WTF does that mean anyway? A sealed box is no more accurate than a ported one. Also, I surely don't need a lesson in bandpass enclosures- having built several 4th order and 6th order, and a pair of tri-tuned (commonly called ABC's- REALLY neat how they sound, but kinda goofy to tune). When was the last time ANY of you built a PROPERLY tuned ported enclosure- not some pre-fab crap. Or, do you base your assumptions on what others say? "Tighter" indeed. The only thing from the last 2 posts I will agree with is that ported MAY be louder (it's no given). Again, it depends on the tuning.
 
iskwezm said:
Check any book,site or whatever else and correct yourself.

Care to show me this somewhere?

Ported-A fourth order enclosure (vented box) is a sealed enclosure with the additon of a port tuned to a specific frequency. The port extends the low frequency response of the basic sealed enclosure usually providing a lower cut-off frequency.

Why are you telling me this? At what point did I even mention a bandpass enclosure?

:shrug:
 
Infinity02Zinc said:
When was the last time ANY of you built a PROPERLY tuned ported enclosure- not some pre-fab crap. Or, do you base your assumptions on what others say? "Tighter" indeed. The only thing from the last 2 posts I will agree with is that ported MAY be louder (it's no given). Again, it depends on the tuning.
Im not going to go into great detail about what i've built or what i've done,but I spent the last few years repping,R&D and tech for audio companies as well as being on the design team of of the SPL record holder in the U.S. and also other teams from Germany and the Netherlands.So I do know a little something about box design. :nice:

I still say your wrong,but you DID build several enclosures,so you must be right.One question, what frequency did you tune to and how did you find that frequency???? :shrug:
 
iskwezm said:
One question, what frequency did you tune to and how did you find that frequency???? :shrug:


Which one? To find a frequency, I use a sealed woofer that I've RTA'd in free-field (an old 12w3) in a sealed enclosure, then RTA the vehicle with that enclosure, then compare the curves to find the car's transfer function. Then I'll tune depending on what is wanted (SPL, SQ, flat RTA curve- which sounds lousy, etc). I never said it wasn't a PITA, but that's how it's done. I love my old Coustic RTA.

If you meant the ABC box, I just used a design that was done by someone else to try out for some RE SE8's, then built one for a Brahma 10. They sounded VERY good. I really like that alignment.