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Everything posted by DevilDriver
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http://creativesound.ca/details.php?model=LT1300 It's really this amp, but at a way lower price: http://www.madisound.com/catalog/product_i...products_id=372 Keiga is an OEM for a few companies, IIRC. Aside from that, a lot of stuff in the US that you'll get hurt for at the border.
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But LLT is not bass-reflex!!!!!!!!!
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edit: Nevermind.
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Look for Lukas from AudioJunkies while you're there. He's flying in for it.
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The only good part of "Epic Movie" was Carmen Electra in blue body paint as Mystique. Even the woman said "She is fucking hot."
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This is something I'll try to expand on in the morning, but if you have a lowpass filter in place with an f3 lower than the f3 created by the inductance of the coil, then the dominant factor is the enclosure, which is really just a highpass filter. Interesting additional note here: the mass of a speaker is also, in effect, a highpass filter. So yes, it is very relevant because frequency response and transient response are utterly and completely related. In short, Dan describes the effects that inductance has on a speaker quite well, but it is a tad misleading.
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Hi Kelvin, I'm afraid it doesn't quite work like that. Each individual port, being of different lengths, will behave as a Helmholtz resonator at different frequencies. It is not the approach you would really want to take, in my opinion. Have you considered building a slot port? Cross-sectional area is easily achieved and you can easily construct a long port by utilizing 90 degree bends or "L" ports.
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Power on tap? 2.5-3 cubes sealed or 4 cubes tuned to 28-32 Hz.
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Pootie tang? Wa Da Tah, my brotha, Wa Da Tah. Such a horrible movie but Louis CK is still the man. I actually enjoyed the movie, multiple times no less. but of course maybe that comes with being low-down & dirty Oh, I have watched the movie 4 or 5 times now. It really rides a fine line between so dumb it's awesome and so dumb it's just awful. But I can't say I'm surprised it didn't get a lot of mainstream approval.
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Pootie tang? Wa Da Tah, my brotha, Wa Da Tah. Such a horrible movie but Louis CK is still the man. One of his HBO specials, was just priceless. Shame his show never took off. There is talk it might be coming back but not on HBO. Although I don't know how you could do the same show on another network because he's just too "real" for most networks.
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Pootie tang? Wa Da Tah, my brotha, Wa Da Tah. Such a horrible movie but Louis CK is still the man.
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Sailing away on the Vag-tastic Voyage.
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Do you think you're cool making a smartass POS post like that?
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Taken care of.
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I'm trying to buy something on woot but I can't register for whatever reason. If someone would be kind enough to buy it for me if I paypal you the money, it would be greatly appreciated. Being Canadian does pose some challenges, unfortunately. This would also entitle you shipping the item to me, but I would be paying for the shipping from you to me as well. Post here or pm me if you're interested.
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Giving away a media vault and $100 worth of HD music downloads...
DevilDriver replied to Audio Junkies's topic in Home Audio
I thought the HD part was stressing that they offer lossless downloads rather than compressed mp3's. At least that's what I gathered from their website. -
SIN was my first real car audio forum and I loved it but I wasn't on enough to really gel with any of the members and I lost interest when things started to slow and manufacturers left. Still, there's a lot of good info there. Can someone pm me an email at which I can reach Josh?
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Will the Exodus kits be using the HDS tweeter from Peerless? That would be pretty balling if that is the case, not that the 9950 was a bad tweeter either. As far as crossovers go, the least expensive crossover will probably feature the most expensive drivers. Think about what you have to account for in a really good design...once you start adding Zobels, notch filters, L-pads, etc, you'll see your price really sky rocket, especially if you're using good quality parts with reasonable tolerances. You can avoid some of these by picking the right drivers with smooth response and relatively flat impedance within the bandwidth you intend to use them (usually means a fair bit of copper in the motor). And if you're having your xover assembled on a PCB ahead of time, well...you get the point. All in all, the crossover makes or breaks the performance (in my opinion). I'd think about waiting it out for the Exodus kits if you're looking for good powerful 2 way performance. Not sure if they have plans for a MTM, but that could be a blast.
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Finally came over from the dark side......
DevilDriver replied to stratusrt01's topic in Subwoofers / Speakers
I'm at work so I can't see any pictures except from an extremely limited number of servers, but I can make some guesses and confirm some things you've mentioned. The really big advantage of a TL, to me, is that unlike a bass reflex enclosure, a TL will perform very well and consistently in many situations. Any bass reflex enclosure is very sensitive to mistuning. This directly relates to power compression: when you apply power to the coil, the resistance increases. If you've got it warm enough to double DC Re (which isn't at all uncommon), you've also doubled Qes and Qts and, thus, your bass reflex (or virtually any ported enclosure) is considerably out of tune. This can be a bad thing, particularly when we're talking about a sub in a car where most users tend to want to put every watt possible through the coil even if there's no real output being gained. So naturally, it tends to be less peaky, which means the usable bandwidth is extended by interpretation (if there is no peak from which to judge upper and lower extension, then it sounds to us as if great extension exists). Also, excursion tends to be a little more controlled in a TL, so you naturally have more mechanical power handling. I, personally, have never cared about dumping a lot of power into a coil: it usually sounds much less pleasant than staying well within thermal limits, particularly if the other aspects of power compression (BL and Cms) are accounted for in the design of the sub. Not everyone subscribes to this, mind you. As far as compression chambers go, I've never used one in a subwoofer before for any enclosure design. The advantage is that you can typically cut down line length and total size by a bit, but the disadvantage may be that you have frequency response aberrations to deal with. I would guess that in a subwoofer, their impact would be relatively slim by comparison to the great power your transfer function holds over the final result. -
Finally came over from the dark side......
DevilDriver replied to stratusrt01's topic in Subwoofers / Speakers
I understand your point, but on some other forum (I know this one is a bit more knowledgeable), I tried to do that, and was rudely responded to that "That's not a Transmission Line", so I tried to describe what I was doing a little more, but I guess I failed miserably at that.....lol You just have a string of bad luck then...lol. F em...just build it and let us know how you like the sound. -
Finally came over from the dark side......
DevilDriver replied to stratusrt01's topic in Subwoofers / Speakers
I think Jim's point (if he doesn't mind me speaking for him) was that one should be cautious to avoid over-adjectiving things. Some choose to over-complicate the title of every enclosure they make when the general function can be described very succintly with, say, the term "Transmission Line." It'll be interesting to see the progress. The Mag is a very solid driver and when paired with a quality enclosure, I'm sure you'll have a very favourable experience. -
I see another CSS fan. A little Canadian, I presume? How do you find the transition from your dual WR's per channel to the subwoofer? The WR's have an awful lot of output for a 4.5" driver but outside of a horn/TL hybrid (a slightly modified PAWO horn), I have had difficulty in the past mating WR's to a few subwoofers, although they were often with higher displacement than the MAW-12. I believe the EL-2 and EL-3 come with one of the Hi-Vi tweeters? I've heard some slightly mixed reviews on them, but am glad to hear that you are quite satisfied with them. The finish on the MAW-12 is quite impressive when you mention your relatively shorter history working with veneers. Your woodworking skills are quite up to par as well. Very solid all around and welcome to SSA!
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From the album: DevilDriver
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From the album: DevilDriver