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Everything posted by DevilDriver
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OiNK is toast forever. The admin got arrested, server got pulled, the whole nine yards.
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So sad without OiNK today....
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An Unbiased Comparison of Linear BL Technologies
DevilDriver replied to DevilDriver's topic in Technical Info & How To's
I am not near as clever as many out there and I have many years of education to go before I am prepared to fully engineer products from beginning to end. There is a possibility, however, that I will be working with a very well known transducer designer on some home audio prototypes (I personally think the car audio market is a really, really tough place to make a buck with any longevity). -
An Unbiased Comparison of Linear BL Technologies
DevilDriver replied to DevilDriver's topic in Technical Info & How To's
And Kyle, thanks for posting. You clearly have the upper hand when it comes to the LMS approach and as you and I have discussed, the LMS-5400 has more than proven it's value in objective testing. I have many reasons to update this and I appreciate your insight. There are just a few things in your post I want to point out. I worry that this thread doesn't state this enough. Just like everything in the audio realm, it is a manner of implementation for a given design goal. It seems to me that this is taken advantage of quite frequently by Dan and I think it might actually be a downside. It seems to me that this might be a poor location to put some copper in terms of inductance variation, no? The ridging is a definite issue in the XBL^2 design that requires due diligence be paid to the motor geometry, specifically the coil length, top plate height, as well as the height and depth of the rebate. Very good insight on the 8200 also and it would be a shame if this was one of the straws that broke the camel's back regarding your relationship with Fujitsu-Ten. -
Good, simple, straight-forward GUI. Perhaps you can add an option for flared ports? You could also allow a user to enter their own flare radius, throat length, etc., or you could use the standard Precision Ports geometry. This is what I was working on for a little while but I've been busy with other stuff.
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Watching Robocop right now. Hilarious.
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I'm not totally sure that tape gasket would work well over several attachments and removals unless you replace it every couple of times. Don't know what material would work just as well, though.
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Personally, I didn't find it that great. But, it is the best of the music video torrent sites. Sorry, I don't have any invites...my account was disabled for inactivity.
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Looks really good. It sucks to see someone out-progress me in less than a week...by a lot.
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Talk to UCP. He's got some selenium (I think) compression drivers paired with an un-cut ID horn.
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It's a fine beginner crossover. Personally, I wouldn't use a passive without a Zobel or impedance compensation network and this design appears to have neither although the tweeter appears to be padded down, which is good.
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Nothing wrong with horns up front. You'll find two challenges, though: 1. Making them aesthetically pleasing. 2. Finding a mid that can keep up with your horns. In general, the compression driver is very efficient and the horn only exaggerates this, so you'll need quite a mid to go with it.
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Tommy "Ho Problems" King of Bass Again
DevilDriver replied to Incriminator's topic in Incriminator Audio
I thought I read on caraudio.com that it was the 43rd windshield he has broken. Could be wrong, though. -
In all due fairness... The poster started a thread and said "this is SQ" and then posted pictures of several Tru amps and IDMAX subs; no front stage at all. What the owner of the vehicle may or may not have up front is important, but that has nothing to do with my point.
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Now that is reference quality!
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Yeah, DIYMA is kind of cliquey sometimes. Then again, we're a bit the same over here. For some reason, the Southpark episode about the aliens taking their jobs comes to mind. So tired of the whole impending doom crap, it is completely made up. there's impending doom in canada? are hockey players going on strike? Zing! You can't escape hockey up here...I only really care for the playoffs but it's the first thing on highlights every single night, even if there was a big game in another sport.
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Very true. With the pending election, a lot of things are getting pushed back. I don't see how they could possibly impact anything, but I guess that's not my call.
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Slow over here as well. Then again, I work for the government.
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Scott, I'll call you tonight after I talk with Bob. You thinking BIB for FR's? I've started on the same thing over here. I want to try my hand at one of the BVR designs that for the FR125 (Harvey or Mikasa) but don't have the patience for that much wood work right now. Do you recall what parts cost is on that amplifier?
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Looks more like "This is money." Don't mean to down it, but I have found IDMAX to be above average but not great, TRU seems to have earned their reputation by charging a lot of money and not making anything stellar, and that much bass output means nothing if the other stuff don't keep up.
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You should get hold of the schematics and maybe we can looking at building a few if FR is worthwhile.
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Sounds good. I read your posts as an indication that you are going to be quite involved in the audio world on a continual basis, which is great. There is a forum right around the corner that you will be wanted at.
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The FR's are really good for full range response with a good bottom end in a small enclosure (0.25 cubic foot bass-reflex works fine...see their EL1 kit). That's the beauty of a 4.5" driver with 6mm of Xmax. If you go with a horn (look for the PAWO horn...I use a slightly modified version of it currently) you can get a lot of low end oomph. As far as it's full range capabilites, it is probably the best full range driver I've heard. Detail is a little lost on the top end but I'd say that's the case for any single full range driver without a whizzer cone...and I don't particularly care for whizzer cones. I don't know of many for around 50W per channel. I personally imagine that the parts might make it fun but cost prohibitive...but then again, I've never built a full amplifier before. If you do go the full range route and put it in a horn, you can get very respectable output with less than 10W, and there's lots of those designs around. DIYAudio.com is a good route to go there. It is likely that I will be a "representative" of sorts for CSS on the side in addition to SSA...not really in an aggressive stance but just helping those who are interested in their stuff. If you are interested, let me know and I'll see what I can do.