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Has anybody built a transmission line subwoofer?
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Baninated
Join Date: Dec 2006
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What are your experiences? I'm thinking about trying one.... I just don't know a whole lot about them. I've found a few sites online that try to explain tuning the length of them, but none very good. Anybody have any experience with them? Please share!
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Grizzled Veteran
Join Date: Feb 2000
Location: Dayton, OH
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you are exactly who I would expect this question of.
I've heard a few of these and they werent anything to get all orgasmic over. Of course you can always find SOMEbody who will swear that they can pick out the minute differences in THD between virtually identical components and blah blah blah but even if you were to follow all the rules and come out with the BEST case scenario for one of these you're not talking about huge practical differences.
Thats also part of the problem with these, the fact that there are more than a few conflicting rules or schools of thought for building them. The other REALLY critical thing is driver selection, much more so than with more traditional enclosures. I forget the reason at the moment, but the physics of the driver have to be just so or else no-go.
Basically its a hell of a lot of work for a best-case of a minor practical benefit and thats if you get it "right", whatever that is. However, for somebody all engineery like yourself, who enjoys the theories, numbers and whys of how things work its probably a pretty good project.
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Professional Poster
Join Date: Apr 2007
Location: A House of Ill-Repute in the Sky
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So, what the hell did he do this time? Did he even last 24 hours?
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Professional Poster
Join Date: Oct 2004
Status:
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He offended certain audiophiles by attempting to build a transmission line subwoofer. Had me fuming.
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__________________________________________________
My stupid iPhone game: Nesen Probe, it's rather old, annoying and pointless, but it's free.
Was free. Now it's gone. Never to be seen again.
Off to join its brother and sister apps that could not
keep up with the ever updating iOS. RIP Nesen Probe.
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Mac Elite
Join Date: Nov 2001
Location: Northern VA - Just outside DC
Status:
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I built one from a set of plans. The old (1970's era) I.M.Fried design using KEF components. Also, ESS made the AMT1 "Sound Tower" with a really nice sounding Transmission line bottom end. If I remember, they are only good for about 1.5 octaves, and you have to cross over rather steep (12-18dB/octave).
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Posting Junkie
Join Date: Feb 2005
Location: 888500128
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Professional Poster
Join Date: Apr 2007
Location: A House of Ill-Repute in the Sky
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Well they sure took their time banning him after locking that thread.
(So he did last 24+ hours)
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Mac Elite
Join Date: Jun 2006
Status:
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I don't think it was for that, I mean he's created a bunch of threads in the feedback forum whining about how unfair mods are towards him. I don't know what provoked the mods to Baninate him this time.
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Michael
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Professional Poster
Join Date: Apr 2007
Location: A House of Ill-Repute in the Sky
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Yeah, I didn't see anything 'out of the ordinary' in his post history. Someone must have just reported him as abusive and that was that.
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Mac Elite
Join Date: Jun 2006
Status:
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If that was the case I wonder if they also "edited" or deleted the offending post also.
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Michael
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Professional Poster
Join Date: Apr 2007
Location: A House of Ill-Repute in the Sky
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No they don't bother unless its graphic which is unlikely.
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Registered User
Join Date: Apr 2000
Status:
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I'd hoped random, unjust banning would stop with Tooki's departure. Apparently not.
The mods seem to ban cash whenever they feel like it, really... it's almost random, and often for "offences" far less than what other members constantly get away with. The justification is that he's abusing the rules by re-registering constantly, but that's not exactly fair given his very *initial* ban was an unjust one also (was it tooki, misha, or wlonh? I don't recall but I do remember it being BS).
(
Last edited by Cipher13; May 31, 2007 at 01:10 PM.
)
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Baninated
Join Date: May 2007
Status:
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Yeah, they seem to be pretty god damn retarded lately. They ban Cash for calling 'railroader' Kilbey, even though he posted here as Kilbey for over 3 years, for thousands of posts. Yeah, THAT makes sense. And didn't railroader call Cash by his real name, many many many times? He didn't seem to get a very long ban for that, now did he?
This last time, I have no idea why they banned him. I bet you cash doesn't even know why, he probably got some cryptic bannination message, said **** this, and just started reregistering again since the mods are so god damn retarded and act like spazzes. They're literally acting like a PMSing chick who's having constant mood swings... you're okay... NO YOU'RE NOT YOU ASSHOLE! Wait, no, you're okay... WAIT NO YOU AREN"T YOU JERK!
Whatever. I say Cash should just reregister again and again since they're hell bent on treating him unfairly. They can't stop him, and they know it.
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Professional Poster
Join Date: Apr 2007
Location: A House of Ill-Repute in the Sky
Status:
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Professional Poster
Join Date: Jun 2001
Location: Northwest Ohio
Status:
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Originally Posted by Dakarʒ
And you are...?
Who do you think he is?
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Mac Elite
Join Date: Jun 2006
Status:
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Originally Posted by DrMischievious
Whatever. I say Cash should just reregister again and again since they're hell bent on treating him unfairly. They can't stop him, and they know it.
Sounds like he already did, so why not give up the pretense.
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Michael
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Baninated
Join Date: May 2007
Status:
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Originally Posted by Dakarʒ
And you are...?
Consider me somebody who's sick of Cash getting banned for BULLSHIT reasons. He posts pretty much the same **** as everybody else around here, only it seems like certain members with penile inadequacy problems report all his posts as offensive, so the mods keep giving him a hard time, instead of actually dealing with the problem members who report him 24-7.
He did NOTHING to deserve being banned this time, and you know it.
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Posting Junkie
Join Date: Feb 2005
Location: 888500128
Status:
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Well, you certainly strike a familiar, abusive tone.
See you around... I guess.
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Baninated
Join Date: May 2007
Status:
Offline
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Hey, analogika is here. What do you know about TL subs? You probably have one. Elaborate please!
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Professional Poster
Join Date: Apr 2007
Location: A House of Ill-Repute in the Sky
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Originally Posted by Person Man
Who do you think he is?
I'm really getting sick of that emoticon.
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Registered User
Join Date: Apr 2000
Status:
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Another ban?
Real gutsy, guys.
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Professional Poster
Join Date: Apr 2007
Location: A House of Ill-Repute in the Sky
Status:
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Well that charade lasted long.
Personally, I'm hoping he comes back under a new 'DrMischievious' account and starts complaining that DrMischievious did nothing ban worthy so why did he get banned.
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Mac Elite
Join Date: Jun 2006
Status:
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Originally Posted by Cipher13
Another ban?
Real gutsy, guys.
Looks like he got dinged again
I think the problem is that he gets on a kick to start crapping on threads, he also painted the mods into a corner saying they can't stop him and he'll just continue to break the rules.
He should have been less adversarial and less insulting to people and he would find himself not getting banned as much.
For what ever reason when ever he sees a RR thread he goes out of his way to inflame RR
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Michael
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