bandpass

[Biggs]

hey i'm wondering if a bandpass box sound any better then orginary ones? or does it sound worse or whatnot

[Xmax]

I had a bandpass box, Qlogic one, it sucked, not sure how other bandpass boxes go but this one sucked. Get a sealed box, you bass frequencies hit harder.

[ColombianMax]

I heard sealed boxes shorten life of the woofer compared to vented...anyone wanna confirm that?

[shmad]

in a bandpass box the sound will be noticably less, but the bass will hit tighter. so it wont be as loud, but it will be cleaner. i had my 2 audiobahn 12''s in a bandpass and i hated it. it was like 1/2-3/4 the original loudness.

[djbonsu]

yea...bandpass SUCKS ASS!!...i say go SEALED or PORTED....PORTED OFFERS THE BEST SOUND but drawbacks are u Sacrifice TRUNK SPACE and the ported box has to be designed VERY PRECISELY to the spec of the subs...

[Biggs]

what makes a bandpass a bandpass? is there any gismo inside or something??

[chitwista]

what makes a bandpass a bandpass? is there any gismo inside or something??

A bandpass box will typically produce more bass, but it is not a tight bass, it is sloppy and not very accurate. These boxes seem to be good at making bad subs, sound better then they actually are. Bandpass boxes are the ones that you see most w/ the plexi windows in the front. A vented box can be tuned to produce a particular frequency very good, but can be large and sound crappy outside of its tunning. A sealed box is good because they are small and accurate on basically all frequencies but cannot produce lower bass notes like a ported or bandpass box. Each box is good for its own application, but to me nothing beats a vented box tuned under 40hz.

From a website I found:Sealed boxes: For deep, precise bass
A sealed box is an airtight enclosure housing your subwoofer. A sealed box is best for any music that demands tight, accurate bass. Expect flat response (not excessively boomy), deep bass extension, and excellent power handling. Since a sealed enclosure tends to require more power than a ported box, use an amplifier with ample wattage for optimum performance.

Ported boxes: For forceful bass
Ported boxes use a vent (called a port) to reinforce low bass response. You get more output than you would from a sealed box at any given amplifier wattage. Some people prefer the sound of ported boxes for rock, heavy metal, or any hard-driving music. Ported boxes can deliver deeper bass than sealed boxes, though they need to be much larger than sealed enclosures to accomplish that.

Bandpass boxes: Maximum slam!
Bandpass boxes are a special type of ported box designed for maximum slam. The woofer is mounted inside a dual-chambered box (one chamber sealed, the other ported), with the sound waves emerging from the ported side. The sound that comes out of the port is extra loud within a narrow frequency range.

Because bandpass boxes are super efficient within that range, they tend to boom. Their aggressive sound is great for rap, reggae, and hard rock. Not all subwoofers work well in bandpass boxes, though; consult our product information or call a Product Advisor to be sure.


Hope this helps clear some of your questions!

[Biggs]

so i should just open up a bandpass and take off that shield crap and then cut all the box inside it out and then it won't be a bandpass and sound maybe a bit better?

[chitwista]

so i should just open up a bandpass and take off that shield crap and then cut all the box inside it out and then it won't be a bandpass and sound maybe a bit better?

Do your subs face eachother at an angle? Or are they facing straight out?

[Biggs]

they are right next to each other, facing out towards the back of the car.

[chitwista]

they are right next to each other, facing out towards the back of the car.

As long as they are right next to eachother and not angled, you can take off the plexi front and try to seal up the ports, it will probably hit a little more accurate, you will probably lose some bass but will sound a lot cleaner. Or you can get a inexpensive sealed box from a swap shop for probably 40 bucks..

[Rocky]

If you have ANY experience with woodworking, you can buy a sheet of 1/2" MDF and some silicone sealant and Tite Bond II glue.... Find one of the websites that calculates box size, throw your info in, and cut/build the box custom. Mine didnt turn out pretty, but its solid, and hits hard, even at 250 RMS...

[Biggs]

yeah that's wat i'm planning on doing. taking them out and just sperateing the 2 into their own box. That way i can have one sub for each car.