killerbee_vr6 Posted October 20, 2002 Share Posted October 20, 2002 http://www.adireaudio.com/diy/Drivers/Adire/maelstrom.htm Oooooh boy does that seem like a good match for my La Scalas. What do you think, a pair in some sealed boxes? Maybe a 1000wpc Crown to power them? Quote Link to comment Share on other sites More sharing options...
Dustin B Posted October 20, 2002 Share Posted October 20, 2002 The Maelstrom is a very nice higher efficiency 18" driver. 1000wpc is way way too much for this driver. You can get away with a 1/5th that much power. The only other issue is enclosure size. To keep efficiency up there and the Q down you will have to build a rather large enclosure. If you have, or can throw kilowatts at a sub, then you may want to consider the Tumult that should be available in a month or two. Preorder will start very soon ($350 on preorder). Almost twice the linear displacement of the Maelstrom and uses Adire's new XBL^2 motor topology, but has a very low senstivity. Also has a low Vas so it can work very well in tiny enclosures. Add a Linkwitz Transform circuit and you can have that tiny sub with a Q and F3 of whatever you want (although the more the LT modifies the response, the less overall output you'll be able to get). Either way a pair of these should be very impressive in tiny boxes. Quote Link to comment Share on other sites More sharing options...
killerbee_vr6 Posted October 20, 2002 Author Share Posted October 20, 2002 Ok, I'll be a bit more specific. Size isn't important to me (I have La Scalas, after all). I was figuring on about 500wpc, as I really do give my Scalas workouts occasionally. Two subs as big as my mains aren't objectionable to me. What I am looking for is retarded-loud subs in the 30+hz region. Quote Link to comment Share on other sites More sharing options...
Dustin B Posted October 21, 2002 Share Posted October 21, 2002 Then you want a bass horn. Will be rather tricky to build. But you won't have to worry about a pair of them keeping up with your LaScalas, you'll have to worry about your LaScalas keeping up. In fact one may be all you need. http://www.prosoundweb.com/lsp/ The driver designed for it is available from Parts Express. About $150 each I think. http://www.partsexpress.com/pe/pshowdetl.cfm?&DID=7&Partnumber=290-570 A pair of these basshorns corner loaded should have a sensitivity around 107dB/W/m and could take up around 2 kilowatts each. So well over 130dB from 30hz on up would be possible. Mark Seaton has access to Tom Danley (guy who designed it) and knows a lot about it too. If you decide this is something you would like to persue I'm sure he'd be willing you help you get the project completed. Another option would be an infinite baffel. Throw 4-8 Tempests in an infinite baffel and you'll have some seriously nice sounding bass and some serious output too. This site has pretty much everything you wanted to know about IB subs (note the links at the top to pictures of installs and an FAQ): http://f20.parsimony.net/forum36475/ If neither of these appeal to you, then I'd say the Maelstrom would make the next best option. Send the guys at Adire an email and see what size box they recommend for the Maelstrom given your other speakers and available power. Quote Link to comment Share on other sites More sharing options...
Audio Flynn Posted October 21, 2002 Share Posted October 21, 2002 This is a scary bone crushing project you are considering. I have the Adire Audio Rava. To me it sounds like an M&K at 35% of the price. Those people back up what they say. You have neibors that like your music? Quote Link to comment Share on other sites More sharing options...
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