prodj101 Posted August 23, 2002 Share Posted August 23, 2002 Hey, I'm kicking my self because I didn't bookmark this website so you guys can see the pictures. There was a guy who cut wholes in his ceiling up to the attic, and put 4 18 inch subs in there, and tuned it down to 15 hz! now thats an amazing sub. the only problem is what do you do if you find something better? ------------------ -Trevor Quote Link to comment Share on other sites More sharing options...
kenratboy Posted August 23, 2002 Share Posted August 23, 2002 Hey, you best be finding that site for all of us!!! ------------------ Receiver: Sony STR-DE675 CD player: Sony CDP-CX300 Turntable: Technics SL-J3 with Audio-Technica TR485U Speakers: JBL HLS-610 Subwoofer: JBL 4648A-8 Sub amp: Parts Express 180 watt Center/surrounds: Teac 3-way bookshelfs Yes, it sucks, but better to come. KLIPSCH soon! My computer is better than my stereo! For JBL related subjects and more fun, click: http://www.audioheritage.org Quote Link to comment Share on other sites More sharing options...
Danartdis Posted August 23, 2002 Share Posted August 23, 2002 I believe the design is referred to as "infinite baffle" design and I remember seeing pics that are probably the pics to which you are referring. It was pretty interesting. If you can do a search with "infinite baffle" you probably will find it. Dan ------------------ Danartdis system HK AVR 500 Heresy mains Heresy rears Academy center JBL 4638"sub"woofer PE 250 watt sub amp Quote Link to comment Share on other sites More sharing options...
boa12 Posted August 23, 2002 Share Posted August 23, 2002 i think i'd prefer using the basement or an indoor pool (empty). but hey, sounds nifty. ------------------ My Home Systems Page Quote Link to comment Share on other sites More sharing options...
kenratboy Posted August 23, 2002 Share Posted August 23, 2002 Ohh basement! 150 dB. at .1 Hz. with a 4" woofer!!! ------------------ Receiver: Sony STR-DE675 CD player: Sony CDP-CX300 Turntable: Technics SL-J3 with Audio-Technica TR485U Speakers: JBL HLS-610 Subwoofer: JBL 4648A-8 Sub amp: Parts Express 180 watt Center/surrounds: Teac 3-way bookshelfs Yes, it sucks, but better to come. KLIPSCH soon! My computer is better than my stereo! For JBL related subjects and more fun, click: http://www.audioheritage.org Quote Link to comment Share on other sites More sharing options...
Dustin B Posted August 24, 2002 Share Posted August 24, 2002 Yep, infinite baffles are mondo cool. don't quite understand this tuning though as IB subs are not supposed to be ported. Did he LT it to an F3 of 15hz or something? Anyways for those interested here's the place to go for IB info. http://f20.parsimony.net/forum36475/ The link is to a forum dedicated to IB subs. Note the two links at the top though. One is a picture gallery of many different IB installs, the other is an FAQ with an answer to pretty much every important question about an IB sub. Put four of Adire's new Tumult drivers (has twice the Vd of a SVS TV12 driver) in an IB with a Linkwitz Transform that gets the Q up around 0.5 and the F3 under 20hz, add a nice parametric EQ and you will have an unbelievable sub. Say $1200-$1600 for the drivers, $500-$1000 for the amp and another couple hundred for a nice EQ. You'll have a sub that could compete with 8 SVS Ultras for output and also very few subs could compete with its' sound quality This message has been edited by Dustin B on 08-24-2002 at 01:06 AM Quote Link to comment Share on other sites More sharing options...
tpg Posted August 24, 2002 Share Posted August 24, 2002 I saw a guy who made a square post that stood really tall- to this he put tons of Adire Shiva (I think) drivers... I mean tons of em. At least 10. He then put the post somewhere and used the room as his enclosure.... now that would make some serious bass. ------------------ SoundWise / ProMedia Tech Support / 1-888-554-5665s> Quote Link to comment Share on other sites More sharing options...
Dustin B Posted August 25, 2002 Share Posted August 25, 2002 That would be ThomasW. He is the guy running that forum I linked to above. Picks of his "Twelve Shivas Dancing" IB are on that site. The box is extremely strong and uses a floor jack to ensure a solid bond to the floor of the above listening room (his basement isolates the front wave from the back). He has it wired as a pair of 3ohm loads driven by a two channel pro amp with less than 200W a channel and can still do well in excess of 120dB down into the last octave. Quote Link to comment Share on other sites More sharing options...
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