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Car Audio Equipment
Subwoofers
one sealed and one ported?
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<blockquote data-quote="hispls" data-source="post: 8331686" data-attributes="member: 614752"><p>That's what he claimed, but the "500W" was a Sundown SAZ3500D. For practical/musical purposes, a 4th order bandpass is just a worse-sealed box. You can sacrifice bandwidth and low extension for output, but unless you only intend to play one note it's a poor tradeoff.</p><p></p><p></p><p>So it's a sealed box that you can make play peaky at the expense of low extension. Sounds like the worst of both worlds to me. Also, please define the "control" you would have with a sealed alignment and lose with ported.</p><p></p><p>The point of a ported alignment is that you extend your low extension and gain a lot of output. With a 4th order bandpass you pretty much only get a peak at tuning. And the tuning is the high side, not the low side, so your low end is decided by your sealed volume (which could always be louder ported), and your peak is your high side, so you either make yourself a high peak or sacrifice all gain to have pretty much the same response you'd have got sealed.</p><p></p><p>If I'm wrong about this, please point out some evidence to the contrary.</p><p></p><p></p><p>There's absolutely no reason to not use ported alignment for daily/music applications. If you buy a sub that's well built and designed for that application, then build the correct box you'll be happy. Don't cheap out on subs or box, and don't try to get fancy with exotic enclosures unless you have time and money to just hang around building boxes.</p><p></p><p></p><p>Assuming space isn't an issue TL is a really great option for a good response. Of course at that point, why not just make a taped horn? There's a reason that PA bass bins are horns.... when space absolutely isn't an issue a horn is an incredibly efficient design.</p><p></p><p></p><p>Thank you.</p></blockquote><p></p>
[QUOTE="hispls, post: 8331686, member: 614752"] That's what he claimed, but the "500W" was a Sundown SAZ3500D. For practical/musical purposes, a 4th order bandpass is just a worse-sealed box. You can sacrifice bandwidth and low extension for output, but unless you only intend to play one note it's a poor tradeoff. So it's a sealed box that you can make play peaky at the expense of low extension. Sounds like the worst of both worlds to me. Also, please define the "control" you would have with a sealed alignment and lose with ported. The point of a ported alignment is that you extend your low extension and gain a lot of output. With a 4th order bandpass you pretty much only get a peak at tuning. And the tuning is the high side, not the low side, so your low end is decided by your sealed volume (which could always be louder ported), and your peak is your high side, so you either make yourself a high peak or sacrifice all gain to have pretty much the same response you'd have got sealed. If I'm wrong about this, please point out some evidence to the contrary. There's absolutely no reason to not use ported alignment for daily/music applications. If you buy a sub that's well built and designed for that application, then build the correct box you'll be happy. Don't cheap out on subs or box, and don't try to get fancy with exotic enclosures unless you have time and money to just hang around building boxes. Assuming space isn't an issue TL is a really great option for a good response. Of course at that point, why not just make a taped horn? There's a reason that PA bass bins are horns.... when space absolutely isn't an issue a horn is an incredibly efficient design. Thank you. [/QUOTE]
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Subwoofers
one sealed and one ported?
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