Kiwi Posted February 24, 2008 Share Posted February 24, 2008 Alex did you consider going the wedge shaped route for this cab at any point? Link to comment Share on other sites More sharing options...
alexclaber Posted February 24, 2008 Author Share Posted February 24, 2008 [quote name='Crazykiwi' post='145900' date='Feb 24 2008, 10:39 AM']Alex did you consider going the wedge shaped route for this cab at any point?[/quote] I did consider some degree of tilt but concluded the cons outweighed the pros - less internal volume for given exterior dimensions, more difficult build and not so great when providing FOH as well as monitoring. With a cab of this height and a midrange driver there should be plenty of detail getting up to my ears. I'm considering having an flip handle to give me some tilt on the micro cab. Alex Link to comment Share on other sites More sharing options...
alexclaber Posted February 25, 2008 Author Share Posted February 25, 2008 My 6ND410 is here - very nice! Also soldered up the circuit for my PLLXO yesterday. Alex Link to comment Share on other sites More sharing options...
alexclaber Posted March 6, 2008 Author Share Posted March 6, 2008 (edited) Five sides of second cab built. Baffle cut out. Voila! Alex Edited March 6, 2008 by alexclaber Link to comment Share on other sites More sharing options...
eude Posted March 6, 2008 Share Posted March 6, 2008 [quote name='alexclaber' post='152407' date='Mar 6 2008, 02:48 PM']Five sides of second cab built. Baffle cut out. Voila! Alex[/quote] You're going to have to get hold of a Digital Camera mate. Would luv to see this develop... Especially your mini monitor style cab. Cheers, Eude Link to comment Share on other sites More sharing options...
alexclaber Posted March 6, 2008 Author Share Posted March 6, 2008 [quote name='eude' post='152412' date='Mar 6 2008, 02:55 PM']You're going to have to get hold of a Digital Camera mate.[/quote] Links sorted! Seems picasaweb and basschat don't get on. [quote name='eude' post='152412' date='Mar 6 2008, 02:55 PM']Especially your mini monitor style cab.[/quote] Not sure if I'll bother with that now - we'll see. I hear a 3012LF is in the pipeline which might make it viable to build a decent compact cab - unless Andy @ Acme will sell me one of his magic little 10"s! Alex Link to comment Share on other sites More sharing options...
The Funk Posted March 6, 2008 Share Posted March 6, 2008 I'm very interested in this build. It looks like it's all going according to plan. I'm very happy with my Acme B2s but I am considering an Eden WTX-260 + an Acme B1 for home practice and small gigs. It'd be nice not to have to always take a car to gigs. Would you realistically need a small monitor cab? At 30" tall, that should be high enough to get some detail to your ears. Link to comment Share on other sites More sharing options...
alexclaber Posted March 6, 2008 Author Share Posted March 6, 2008 [quote name='The Funk' post='152438' date='Mar 6 2008, 03:29 PM']Would you realistically need a small monitor cab? At 30" tall, that should be high enough to get some detail to your ears.[/quote] The small cab would be for standalone use when recording and possibly rehearsing. This beast is certainly tall enough and loud enough to handle gigs singlehandedly! Alex Link to comment Share on other sites More sharing options...
The Funk Posted March 6, 2008 Share Posted March 6, 2008 Ah, I get it now. If you did crack the secret of the useful small cab then you could probably go into business making them. I'm sure almost everyone on this forum would like one. Link to comment Share on other sites More sharing options...
alexclaber Posted March 7, 2008 Author Share Posted March 7, 2008 (edited) [quote name='The Funk' post='152464' date='Mar 6 2008, 04:09 PM']Ah, I get it now. If you did crack the secret of the useful small cab then you could probably go into business making them.[/quote] I have some ideas about making a non-biamp version of this cab available, plus a more compact version with less bottom and a matching extension cab (also available as a 2x15") and maybe a simple 1x15" super lightweight cab (and a coax with tweeter version of this). We'll see how this turns out first! Alex Edited March 7, 2008 by alexclaber Link to comment Share on other sites More sharing options...
alexclaber Posted March 7, 2008 Author Share Posted March 7, 2008 [quote name='synaesthesia' post='153130' date='Mar 7 2008, 03:15 PM']Look into the Beyma 605Nd. It's about 64 quid in the UK. It'll match the kappalite for sensitivity and if you are not using a tertiary driver as a tweeter, this driver pushes out quite a bit beyond 5K for a bit more than your usual midrange units before dropping off.[/quote] Ah yes, nice speaker! Not one I'd found before but seems roughly on a par with the 6ND410 for less money. Thanks! Alex Link to comment Share on other sites More sharing options...
alexclaber Posted March 10, 2008 Author Share Posted March 10, 2008 Spent a bit more time looking at that Beyma speaker - the different y-axis scales threw me a bit. The 6ND410 plots out usefully flatter in response and just as good off-axis (Beyma plot is 30 deg, 18sound plot is 45 deg) and when you bear in mind the reduced power compression and higher sensitivity the 6ND410 has a max output 5.4dB greater. Haven't done any physical building but have started putting together a complex number spreadsheet to design a passive crossover version of the cab. A little hard on the brain but satisfying! Alex Link to comment Share on other sites More sharing options...
gilmour Posted March 10, 2008 Share Posted March 10, 2008 looks like it's getting there Alex, Are you horn loading this cab, for some reason I was under the impression you were, but looking at the pics I'm not so sure? Rob Link to comment Share on other sites More sharing options...
alexclaber Posted March 13, 2008 Author Share Posted March 13, 2008 Am halfway through the bracing fun and things are feeling a lot stiffer. Had one moment of confusion on the midrange sub-enclosure cutting one 45 deg angle the wrong way - doh! Slightly puzzled about the choice of bolts and t-nuts for securing the speakers - how small can I get away with? Alex Link to comment Share on other sites More sharing options...
Mottlefeeder Posted March 13, 2008 Share Posted March 13, 2008 [quote name='synaesthesia' post='154847' date='Mar 10 2008, 07:58 PM']...If you are willing, Line X is available in the UK, and costs roughly 75 quid to 'do' a speaker box. At least in my neck of the woods... they sell franchises to operators but I don't know if they manage the retail prices to maintain some semblance of equity. [url="http://www.line-x.co.uk/"]http://www.line-x.co.uk/[/url] have fun,[/quote] A cheaper alternative might be Protecta-kote. A paint finish that you put on with a roller, which contains rubber granules . One £15 tin will do all six sides of an Omni 12 (28x24x15 inches), and it is available from chandlers etc. [url="http://www.protectakote.co.uk/index.htm?gclid=CIiE45mNi5ICFRKHMAodqU589g"]http://www.protectakote.co.uk/index.htm?gc...CFRKHMAodqU589g[/url] Link to comment Share on other sites More sharing options...
alexclaber Posted March 14, 2008 Author Share Posted March 14, 2008 I've bought a tub of duratex like paint from Blue Aran, I think it's made by Aldcrofts. Seems to have good reviews online - we shall see how nice it turns out! Alex Link to comment Share on other sites More sharing options...
alexclaber Posted March 14, 2008 Author Share Posted March 14, 2008 I've found some M5 allen head bolts that look like they'll do the trick, plus M5 T nuts. Something reassuring about allen heads when you're so close to a delicate paper cone! Alex Link to comment Share on other sites More sharing options...
alexclaber Posted March 15, 2008 Author Share Posted March 15, 2008 Most of the bracing now done, just the crossbraces to do, and the triangular corner port and its brace. Rear of baffle: Cab, base towards left of shot: Alex Link to comment Share on other sites More sharing options...
david_l_perry Posted March 17, 2008 Share Posted March 17, 2008 Very interested in this Alex. Nice mid range enclosure I assume you are adding a fair number of 'panel to panel' cross braces as well as the side panel braces ? Dave Link to comment Share on other sites More sharing options...
alexclaber Posted March 17, 2008 Author Share Posted March 17, 2008 [quote name='david_l_perry' post='158986' date='Mar 17 2008, 03:27 PM']I assume you are adding a fair number of 'panel to panel' cross braces as well as the side panel braces ?[/quote] Indeed, though I can't be sure where to fit them until the drivers are in and handles mounted - making the first cab takes a lot more thinking than subsequent ones I suspect! Am planning to place panels under compression whilst fitting crossbraces to further raise the resonant frequency of the panels. Just in the process of ordering parts for a passive crossover and L-pad - as I've had some interest from other bassists who'd need a non-biamp cab I thought I might as well try it for myself too! Fortunately the drivers have fairly flat impedance around the crossover point which means using a resistive model should give decent results, though I'm still working on putting together a reactive complex model for the best possible results. Alex Link to comment Share on other sites More sharing options...
alexclaber Posted March 17, 2008 Author Share Posted March 17, 2008 Here's a plot of predicted response for the passive crossover version: Alex Link to comment Share on other sites More sharing options...
Kiwi Posted March 17, 2008 Share Posted March 17, 2008 thats pretty good! Link to comment Share on other sites More sharing options...
barneythedog Posted March 17, 2008 Share Posted March 17, 2008 (edited) watching with REAL interest. Especially interested in the passive crossover version - my BFM build is now on hold pending the results of this thread - no pressure then Edited March 17, 2008 by barneythedog Link to comment Share on other sites More sharing options...
steve-soar Posted March 23, 2008 Share Posted March 23, 2008 Hi Alex, from looking at the specs of the speakers and crossover and the frequency that you have chosen to tune the cab to, this is going to sound very powerful with a realistic low end response. I lke the size as well and the intelligent selection of timbers. I'd be very interested in two 8 ohm 15" subs to match my AccuGrooves or one at 4 ohms. With the 3015LF's and your lightweight cabs they would be ideal. PM me some prices if you are going to make any more. Cheers Steve. Link to comment Share on other sites More sharing options...
david_l_perry Posted March 25, 2008 Share Posted March 25, 2008 Hows the build going Alex...expected it to be finished by now....... Dave Link to comment Share on other sites More sharing options...
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