Davey T's 215 bootybass - WITH PLANS
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Category: Plans
Forum Name: New Projects Forum
Forum Description: Forum for new speakerplans projects, in memory of Tony Wilkes, 1953 - 2014
URL: https://forum.speakerplans.com/forum_posts.asp?TID=27642
Printed Date: 26 March 2026 at 7:10pm
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Topic: Davey T's 215 bootybass - WITH PLANS
Posted By: davey t
Subject: Davey T's 215 bootybass - WITH PLANS
Date Posted: 10 June 2009 at 11:22am
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EDIT: I've changed the name from scoop because as stapier pointed out its not really a scoop and might confuse people. I've called it bootybass because its designed for this 12v system - cars have 12v - cars have boots - its almost small enough to fit in your boot. hence bootybass. haha.. its late and the name and the cab is work in progress :) ---------------------------------------------------- I designed it as part of the 12v system I'm working on and will start building the prototype tomorrow. I thought I would post the plans for all to use and build. 55-200hz at 104db 1w 1m (simulated). The cab is made from 18mm ply and is 60cm high OD http://www.speakerporn.com/albums/userpics/10002/215_miniscoop_plans_2.JPG - http://www.speakerporn.com/albums/userpics/10002/215_miniscoop_plans_2.JPG  ------------- Minirig portable soundsystem movement |
Replies:
Posted By: levyte357
Date Posted: 10 June 2009 at 11:51am
Much appreciated,  Very decent of you sharing such a gem. And I'm sure you can already guess, what some of us will be comteplating it for...  ------------- "Who am I? I'm the guy who does his job.. You must be the other guy". |
davey t wrote:Posted By: bitzo
Date Posted: 10 June 2009 at 12:02pm
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brilliant and so compact at all. Could you post the hr input data? Thanks for share. ------------- http://www.unitedroots.it - United Roots SoundSystem site |
Posted By: king david
Date Posted: 10 June 2009 at 12:13pm
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very nice plan, look easy to build what about using a 15" midbass driver (not subwoofer)to use it on 80-200 hz range?
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Posted By: biotec
Date Posted: 10 June 2009 at 12:18pm
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I thin the porn in speakerporn is why my work firewall stops me viewing the plans!
can anyone be so kind as to rehost on imageshack.us? ------------- me so horny, me love you long throw. |
Posted By: davey t
Date Posted: 10 June 2009 at 12:28pm
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hang on .... i'm modifying the design slightly to reduce the 70hz bump and make it go a bit lower. I'l call it the MK2 :) So indecisive aren't I! ------------- Minirig portable soundsystem movement |
Posted By: mobiele eenheid
Date Posted: 10 June 2009 at 12:40pm
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I think you should measure it before you do that. The measurements on the last hybride I build showed that it did go 10 Hz lower then HR predicted. The bumps were also less high but wider.
Best regards Johan
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Posted By: levyte357
Date Posted: 10 June 2009 at 12:49pm
Please dont lose anything off the top end. I'm wondering about trying to cross this into Hornloaded 10" + 1".  ------------- "Who am I? I'm the guy who does his job.. You must be the other guy". |
Posted By: davey t
Date Posted: 10 June 2009 at 2:09pm
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Thanks Johan.. yea things always turn out slightly differently to HR predictions. I'm going to build the second version with the smaller mouth. Simply because the horn/port tunes the chamber to 50Hz instead of 60hz which tells me that its going to go quite a bit lower and low is always good :) Plans for both are on speakerporn. ------------- Minirig portable soundsystem movement |
Posted By: Meat
Date Posted: 10 June 2009 at 3:01pm
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Looks like a double version of the new beyma design.
------------- Don't test the champignon sound |
Posted By: james folkes
Date Posted: 10 June 2009 at 3:05pm
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is it me or does that bear a more than passing resemblance to a trs218?...
i'm quite liking the look of some of the sovereign series, not least of all as you say for the price. the sovereign pro 15-500 looks really handy too, but it has a cast chassis and that so may be quite a bit more than the 400.
james. ------------- mardy hippy. |
Posted By: king david
Date Posted: 10 June 2009 at 4:17pm
what about a single driver version?
should i make the 46,7 cm panel 60cm long?
when my mates and me move hog scoops, smt212 and heavy amps we'd like to have a lighter upper bass bin...
 |
Posted By: Father-Francis
Date Posted: 10 June 2009 at 5:32pm
here you go Nick ------------- Music is the strongest form of magic.(+45 31879997)blakmanpro@gmail.com, foa@sweetboxaudio.dk |
Posted By: login4
Date Posted: 10 June 2009 at 6:07pm
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thanks davey, i think this design could sound realy nice, im betting it will have a nice hard hitting sound, maybe even a HD15 alternative with better cooling.
------------- CELTIC SUBSONIC SOUND SYSTEMS |
Posted By: davey t
Date Posted: 10 June 2009 at 6:44pm
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Thanks for the enthusiatic comments guys. Yea, you can chop it in half if you want to make it a single. I'm not sure it would make the best upper bass cab, probably wont sound as clean as the hd ------------- Minirig portable soundsystem movement |
Posted By: staiper
Date Posted: 10 June 2009 at 7:07pm
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Surely box look to be fine for intended use. I have designed pretty reminiscent version (single 15 instead double) ..I will find some pictures later But still I would not place those in scoop category :) ..I assume that something to be rear loaded horn a.k.a. scoop must have noticeable horn "action" (tending to be long more or less but close to 1/4wave length of low cutoff) In my opinion it will fall more under "advanced bass reflex" .. or "light" version of serial tuned bandpass 6th order box. I do not want to be meticulous .. It is just way I look on thing. ..And maybe to help some fresh-newbie to not be confused and start to assume every bass reflex cabinet with a bit longer port (or "L" shaped port) as scoop (or mini scoop :) ) Best wishes (always) |
Posted By: Mark James
Date Posted: 10 June 2009 at 8:16pm
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------------- insert silly sentence here |
Posted By: jethrocker
Date Posted: 10 June 2009 at 10:17pm
| Nice Davey, once again :) |
Posted By: davey t
Date Posted: 10 June 2009 at 11:02pm
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Yea calling it a scoop is a bit wrong really. There's no physical "scoop" to it. I'l rename the post something else as soon as i think of a good name. Yes its more like a horn flared series tuned bandpass enclosure. It definately has the response of a bandpass cab with the steep dip at 200hz I'l post the HR model. I stuck in 20cm as the offset between the driver and the horn mouth which takes a cut from the upper bass response Its difficult to say how low it'l go. The proof will be in the making and listening... don't worry. You won't have to wait long :) ------------- Minirig portable soundsystem movement |
Posted By: davey t
Date Posted: 10 June 2009 at 11:03pm
------------- Minirig portable soundsystem movement |
Posted By: king david
Date Posted: 10 June 2009 at 11:41pm
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it looks like the parts would fit ok in the sheet of ply i have left at home, its not too big in singles and the frequency plot looks good for an upper bass cab to play reggae.more efficient than a standard reflex cab but with different sound than hd15 or turbosound style bandpass horn, like 3 singles above 4 scoops so i think about building a prototype and see if with a midbass driver it has a good kick at 300w amp power with crossover points 80hz-160hz , and also if it can work good in a home set up as bass cab with low amp power 50hz-130hz where i dont need much sub
the driver i'm going to use is this one http://www.sonoraspeakers.it/schede/Z00830.pdf - http://www.sonoraspeakers.it/schede/Z00830.pdf not really a subwoofer but was sounding good in 15"reflex cabs and has no place now that i have tse118 as upper bass cabs
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Posted By: AlfieDring
Date Posted: 11 June 2009 at 10:51am
| Be watching this with interest davey :) |
Posted By: boycey
Date Posted: 11 June 2009 at 11:22am
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thanks davey t! i'm getting seriously keen on the idea of build a 12v system and have a pair of p audio c15 600lf sitting unused- do you reckon they'd be any good in this design? i've been playing about in HR and winisd with little success in terms of compact designs. ------------- the only thing more dangerous than a person who doesn't give a f**k is a person who gives a sh*t. |
Posted By: pfly
Date Posted: 11 June 2009 at 11:35am
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Davey Altough not entirely similar but could you help me with my 15 minute effort. I first did it in sketchup, measured throat and such points and tried it out in HR http://www.speakerplans.com/Forum/tiny-kick-bin_topic27251.html - http://www.speakerplans.com/Forum/tiny-kick-bin_topic27251.html As you can see, it ended up pretty flat, but could you explain how did you get 104db sensitivity while my sensitivity is somewhere around 92db, altough the nominal sensitivity of PD is 96db! |
Posted By: minaximal
Date Posted: 11 June 2009 at 11:44am
nice one davey!, think you should keep the bootybass name! @pfly your cab is in 4pi not 2pi the driver sensitvity was probably done in 2pi, did you also do the combined response for the spl sim? p.s. if the cab is designed to always be stacked off the ground then a 4pi sim may be closer to the truth, it is pretty much the case for the shorter wavelengths of upper bass mid. ------------- Subs + Barges = :) http://www.metaacoustics.com" rel="nofollow - www.metaacoustics.com |
Posted By: pfly
Date Posted: 11 June 2009 at 12:01pm
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That is the reason why I did in 4pi, in 2pi it gets somewhere around the nominal sensitivity of PD12SB30. Then if there was double version of this it would get to around 100db... Well, back to bootybass I guess. Nice design btw! |
Posted By: darkmatter
Date Posted: 11 June 2009 at 1:31pm
nice!
yep  or phase plugged beyma 122nd and neo 1.4" could be good. |
Posted By: davey t
Date Posted: 11 June 2009 at 7:24pm
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Yea if its on the ground then 2pi- thats almost 5db difference! The drivers are around 99db reflex loaded. The horn expension on the port adds around 3 db compared with the normal reflex and doubling the cab with two 15"s and still keeping 1w increased it further by 2 or 3db. I have to say that I came across your thread a few weeks back which kinda inspired the loading here. That and there's a similar RCF cab i believe and a whole host of other varieties. :) ------------- Minirig portable soundsystem movement |
Posted By: turbodeas
Date Posted: 11 June 2009 at 9:54pm
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Hey, Really nice Davey, looks like it'd be ideal (and nice and cheap) as the low end for the little (but a bit bigger) pub gigs where the pair of SRM450's on sticks isn't quite enough! What do you reckon the max SPL using the Sov400's would be like? Good enough for smallish PA use? I'm sorely tempted to build a pair as soon as I get paid, jsut for fun! The sensitivity sure looks impressive.... Love to see some pics of your build when you've finished it. Cheers, Chris. ------------- http://www.hotmastering.com" rel="nofollow - http://www.hotmastering.com |
Posted By: king david
Date Posted: 11 June 2009 at 10:16pm
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i cut the wood today for a single driver version, i guess i will build it in a day but i will work hard in the next days so no woodwork for me, i think to do it early next week and test it both indoors and outdoors.
it would stack well above hogs and below smt212 so i hope it would work good
------------- http://www.warriorcharge.noblogs.org |
Posted By: king david
Date Posted: 12 June 2009 at 12:44pm
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actually i found time to start the build today, i think that the 39,7cm baffle is wrong and needs to be 41 or 41,1 cm so back to cutter. ------------- http://www.warriorcharge.noblogs.org |
Posted By: davey t
Date Posted: 13 June 2009 at 11:38am
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Let race.... currently half way there with just one afternoons work. I can't believe how easy this cab is to make. I mean, there's no messing around with routing access panels or anything like that. Only 6 angled cuts, all the others are 90degrees. and its small too! when you draw things on a computer you don't really get a sense of scale. Looking forward to finishing and testing  ------------- Minirig portable soundsystem movement |
Posted By: rich_gale
Date Posted: 13 June 2009 at 10:23pm
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looking good champ..
how you imagine this performing when scaled down to fit a pair of 12" drivers? im thinking making them in two halfs aswell..
also, as a horn assisted reflex cab, what ts para's should be aimed for when chosing a driver? will a lower resonance driver allow a lower cutoff as with reflex(at a cost to efficiency because lower fs normally means lower w/spl's), or does the driver want specs suited best for a scoop cabinet? I have a pair of 12" dual vc woofers and wanna make use of them in something different to my usual box with a hole aproach.. ------------- REFLEX ALL THE WAY.... (however, im playing with horns again...) That ok Mister Valiant? :) |
Posted By: shadow1
Date Posted: 13 June 2009 at 10:39pm
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It's looking good man, looking forward to the final result.
------------- Smile, the worst is yet to come. |
Posted By: palesha
Date Posted: 17 June 2009 at 7:41am
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From where u got Le of the driver? The Fane website is down. In the web catalogue Le is not mentioned. |
Posted By: davey t
Date Posted: 17 June 2009 at 9:07am
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I guessed. It only effects upper response anyways ------------- Minirig portable soundsystem movement |
Posted By: davey t
Date Posted: 17 June 2009 at 9:19am
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Ooo its built by the way. Hopefully test it out tomorrow ------------- Minirig portable soundsystem movement |
Posted By: bitzo
Date Posted: 17 June 2009 at 9:59am
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Hi davey, how do you sim this cab? like a tapped horn or like a rearloaded one? It's a very compact compact cab, so interesting at all. cheers, bitzo ------------- http://www.unitedroots.it - United Roots SoundSystem site |
Posted By: pfly
Date Posted: 17 June 2009 at 10:25am
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Hey all! About my tiny tiny kickbin plan again I tried to sim it in 2pi and with two speakers in paraller with 2,83 and I got about 104db sensitivity, so double version of my sim should work nicely. That would be kind of 12" version of Davey's bootybass. |
Posted By: davey t
Date Posted: 17 June 2009 at 10:56am
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Funny, the guys I designed it for are worried its a bit big and too "pro". I thought it was small but I guess the 60cm width makes it a bit "chunky" ------------- Minirig portable soundsystem movement |
Posted By: king david
Date Posted: 17 June 2009 at 11:24am
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i finished a single version, its painted and loaded, i did a good build but the sanding and painting was done very fast and not so accurate so the cab dont look very professional, but its aimed at free parties and home listen so i dont care too much. i would do better when/if i build more.
hopefully i will test it tomorrow and post some pictures ------------- http://www.warriorcharge.noblogs.org |
Posted By: djslacka
Date Posted: 17 June 2009 at 1:36pm
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has anyone had a chance to test these yet? very very interested as an alternative to hd15s. would they work well with dubstep and breaks? |
Posted By: king david
Date Posted: 17 June 2009 at 11:41pm
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i'm playing 1 single cabinet right now as home bass speaker, the sound is good,at very low power its handling the bass section of a 3way jah tubbys preamp with ease. i worked on bass filter and eq to put more enphasis on kick and cut off the lower frequencies and the sound is very kicky but there are still some nice basslines. so for home bass speaker it sounds good and warm, almost a scoop sound ...i will test it tomorrow at 300w amp power with 80-160hz crossover points but 60hz low cutoff would be ok too it stacks very nice above an hog scoop, like a younger brother ------------- http://www.warriorcharge.noblogs.org |
Posted By: djslacka
Date Posted: 19 June 2009 at 1:09pm
| sounds good to me, i reckon il be building 4 single versions to sit aboye c-subs or scoops (stil deciding wether i want people in the next county to hear the sound or not!) |
Posted By: king david
Date Posted: 19 June 2009 at 1:24pm
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second single driver version is built, i had no chance to take pics yet, but i will find time to paint it today. ------------- http://www.warriorcharge.noblogs.org |
Posted By: darkmatter
Date Posted: 19 June 2009 at 3:16pm
have you tried modelling both this and the HD15 in groups of 2 or 4 to see how xmax limits compare? be interested to see the differences in phase response between the two designs as well but im feeling too lazy to model them now |
Posted By: mhtplsh
Date Posted: 21 June 2009 at 7:36pm
How u hv calculated Atc = 2500? |
Posted By: davey t
Date Posted: 22 June 2009 at 10:56pm
Ran it up today (see photos on other post) and had a listen. Sounded pretty much exactly like I imagined and perfomed the same. To use non scientific descriptions.. the bass was "tight" "round" not honky at all and just nice. Here's a quick plot: which is very close to the prediction! yes there is a dip at 120hz but only 2db.. this could be an artefact of the space it was in as it wasn't ideal measuring terratory, or something not picked up by hornresp. you couldn't really hear it when you did a sweep mind. All in all pretty happy. With the tops the whole system sounded great. :) ------------- Minirig portable soundsystem movement |
Posted By: davey t
Date Posted: 22 June 2009 at 10:58pm
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Oh, it was being ran off a 12v mono car amp which had a 15hm low cut, and a low pass filter set to around 250hz. Its interesting that the big dips in the predictions doesn't seem to be there! ------------- Minirig portable soundsystem movement |
Posted By: nomis
Date Posted: 23 June 2009 at 6:37am
| thanks for that |
Posted By: Ibex
Date Posted: 23 June 2009 at 11:21am
| Is there any reason why you didn't simulate the cab as a tapped horn? |
Posted By: boycey
Date Posted: 03 July 2009 at 11:44am
2 weeks of festivaling and scratching my head as to this 'combined response' business i've cracked it and it looks like i ought to get my saw out:  ------------- the only thing more dangerous than a person who doesn't give a f**k is a person who gives a sh*t. |
Posted By: ericlee
Date Posted: 04 July 2009 at 4:26am
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hello, I am Eric Lee, I am a spakers manufacturer owner from Guangzhou, CHINA, I hate copies and clones. I also want to creat some thing new! any one can help me?
Chat to me , MSN cvraudio@hotmail.com
|
Posted By: billkeown
Date Posted: 04 July 2009 at 1:41pm
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Nice work davey, what a cool looking little bin, the plots and size make me think it would be an ideal low end for a drum-fill. Do you reckon it would stand that kind of abuse with the fane drivers?? If so i might just have to fire up the saw! |
Posted By: pfly
Date Posted: 25 July 2009 at 4:14am
Just a quick note: this bin needs simulating and trying out with more high quality drivers, here's a nice example of something "slightly" different: |
Posted By: billkeown
Date Posted: 19 August 2009 at 11:01pm
Today I used this,
 And in three hours, prototype style, we made this;
   As you will note, its a rushed, but solid build, made out of mdf. We've used £20.00 worth of wood and bought 2 x fane sovereign 15-400 drivers.
The drivers were a pleasant surprise, they felt better than comparable £50.00 drivers. The cones and suspension particularly seem good. yes it's a pressed chassis and it feels a bit flimsy, but they all do.
As you will see, we've altered/simplified the bracing halfway down the horn mouth, i don't beleive this will have any negative effect on perormance.
I keenly stuffed the brand new driver into the holes, wired it up, chucked on a CD and began to grin. For 120 quids worth of parts ( MDF + Speakers) this sounds good! Nice one davey. It seems like it will take a proper hammering too. Ok maybe not dubstep, i'm thinking about live kick drums and bass guitars etc........
I have a couple of questions, should i use wadding in the rear chambers, and if so, how much? i'm assuming, because it's a reflex/horn hybrid that i should wad it like i would a reflex, but would appreciate it if somebody has a definate answer.We will of course try it both ways, but this as you know is not always simple.
Secondly, Davey i'm observing a lot of panel vibration with this box, particularly on the top and bottom towards thr front of the horn mouth, on the back and on the sides. (all from the perspecive of the bottom photo in this post). Will this be better on a production run made from proper ply, or should i have a go at a thorough internal bracing session tomorrow.
More questions and thoughts will surely follow as i get time but so far it seems great.......and SO SO small!! Wow
 |
Posted By: davey t
Date Posted: 19 August 2009 at 11:08pm
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Good work! great to see me plan being built. Yea you need to brace that badboy up! You're right it doesn't go low enough for dubstep but gives some good and very efficient bass for the small size and cost. ------------- Minirig portable soundsystem movement |
Posted By: billkeown
Date Posted: 20 August 2009 at 12:03am
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I couldn't beleive how quick it went together! 3 hours from Wickes MDF to loadable box... It is such an easy thing! I think if i can get the bracing right then i'll maybe build 4 to have lying around as a general purpose, drum sub, sidefill sub, pub gig, dry hire, whatever usefull small bin. Hey yeah we could call it the Usefull Small Bin......or not hahaHave you got any thoughts on wadding in a design like this?
Bill
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Posted By: bitzo
Date Posted: 20 August 2009 at 9:55am
+1 I simmed the bootybass like tapped horn...and response is so different ------------- http://www.unitedroots.it - United Roots SoundSystem site |
Posted By: Strange Daze
Date Posted: 20 August 2009 at 11:19am
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These look really nice... Just the kind of thing I was after.... Good job Davey T.......I think im gonna knock some up in the new year :) |
Posted By: DJC
Date Posted: 28 August 2009 at 9:35am
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How do you think these would sound as a standalone bass cabinet under some simple 15"+2" tops? Are you guys mounting the speakers magnet in/out, or doesn't it matter? Yet to a pic of these loaded.
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Posted By: AlfieDring
Date Posted: 28 September 2009 at 12:06pm
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*Edit* not to worry, have sorted this out now. :P first single bootybass cabinet is nearing completion in my basement. Went for option 1 out of the two below, with 5mm rebates and some phunky handles. Will get pics up later. Alf Hiya Quick question for Davey, tried to PM but was full. When making this cab as a single would it be better to do it this way....  Or this way...?  Option 1 you keep the throat the same but lose a 9mm sliver of mouth area (compared to half the mouth of the double version) Option 2 you preserve the mouth area but change the throat very slightly. I'd guess at option 1 but would like your opinion :P Thanks for making this plan available. Alf |
Posted By: darkmatter
Date Posted: 28 September 2009 at 1:49pm
I think Davey's bracing would help with this to an extent.
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Posted By: AlfieDring
Date Posted: 28 September 2009 at 7:54pm
Hehe i spotted that too.... +1 |
Posted By: DjMidKnight
Date Posted: 12 October 2009 at 8:53pm
was wondering if someone could simm this cabinet with the 18sound 15mb700 driver
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Posted By: AlfieDring
Date Posted: 14 October 2009 at 11:53pm
Got a single version of this bin finished :P Just need to fill/sand/trim and roundover. Its gluing up now, gonna have a cheeky listen tomorrow morning.   Sorry for the poor quality pics, phone cam. meh. Alf |
Posted By: DjMidKnight
Date Posted: 15 October 2009 at 4:07am
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hey whatever works to get the shot man. btw i like the built in handles look nice. let us know how they turn out. what are you loading it with? |
Posted By: AlfieDring
Date Posted: 15 October 2009 at 9:31am
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Fane sov. 15-400 as specced. Hopefully it will do the business. I realised i could afford to have 6 of these single bins with the fane drivers now AND carry some spares because there so cheap. If i end up doing that I'd definetly be interested to know what other drivers might work well. Particularly anything with the same or higher sensitivity and more power handling. Maybe a Neo as well to keep them super light? Will report on noises in a few hours. Off to play now :) |
Posted By: el_dj
Date Posted: 15 October 2009 at 12:32pm
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i guess we are many that are interested in how these work...! pls keep us updated!! :) ------------- Old twat, with an interest in light & sound |
Posted By: AlfieDring
Date Posted: 15 October 2009 at 1:05pm
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Just had a quick blaze! One word response would be... "sick" :D Very musical very loud, makes bass guitar sound amazing. It dos'nt quite hit the lowest notes of DNB/Dubstep tunes but it does get the slightly higher parts of the bassline with some proper authority. At the upper end its pretty good too. Nice round sounding kick with a good thump to it but not like a w-bin/115 or similar straight horn. Was running 50-111Hz with B+C box12 on top. Ultradrive on processing, C-audio RA3001 driving both cabs. The -12dB light was flickering on the bass channel so theres certainally a bit more oooomf in it yet.   The w-bin + larger mid-top in that photo werent running before you ask. Thanks very much for sharing this plan davey , im a happy chappy and will be building 3 more.Alf |
Posted By: tweeter box
Date Posted: 15 October 2009 at 1:50pm
top stuff
 ------------- PRECISION SOUND SYSTEM. Feeding the peoples needs for Roots Music. Strictly premium grade reggae and dub steppers from the early 70's to present day. |
Posted By: tweeter box
Date Posted: 19 October 2009 at 1:22pm
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Hows the box sounding?
what frequencies is it good for?
im guessin by the size of it, its a kick bin?
any one modelled it with a PD 1550?
soz for all the questions  ------------- PRECISION SOUND SYSTEM. Feeding the peoples needs for Roots Music. Strictly premium grade reggae and dub steppers from the early 70's to present day. |
Posted By: tweeter box
Date Posted: 19 October 2009 at 1:25pm
 Lev can u sim it with a PD1550 for me pls?
any adjustments i need to make for it to play 50 - 200 nicely? ------------- PRECISION SOUND SYSTEM. Feeding the peoples needs for Roots Music. Strictly premium grade reggae and dub steppers from the early 70's to present day. |
Posted By: mykey
Date Posted: 19 October 2009 at 1:28pm
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@Alfie you've tested up against that wall and on the floor? will be a different outcome when place on top of a bass cab in the middle of a room still good though ------------- ......just all them hanging there like giant bananas. |
Posted By: bitzo
Date Posted: 19 October 2009 at 1:36pm
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check the beyma tapped horn, pretty similar to that. Ibex simmed them for a lot of driver. I sim this cab like tapped horn not like a scoop, however a nice response too ;) ------------- http://www.unitedroots.it - United Roots SoundSystem site |
Posted By: AlfieDring
Date Posted: 19 October 2009 at 1:59pm
Yep  fair as a comparison though, in any space that size thats how i've always positioned a single bin. I'm not equipped to do anything remotely scientific measurement wise!Had the opportunity to try it out in the upper bass role last night. Setup with 2 xb loaded super scoops, 1 * single bootybass and 2 * B+C box 12. Did'nt have to stress the system for level but id say you would definetly want a 1 to 1 ratio! Supers 36 - 80hz, bootybass 80 - 140hz (raised this to 180 later on), box 12's 111 - 20k. performed as expected really. Its not an ideal upper bass bin but you can get away with it for the type of material that was played (dub from modern to rootsy off laptop and vinyl with some live melodica and vocal). If you any of you lot (tweeter?) are interested in using this above subs all the time and dont need the stand alone bass cab capability why not try building the mk1 davey designed? http://www.speakerporn.com/displayimage.php?pid=271&fullsize=1 response of that cab looks right on the money for the role. ^ Alf |
Posted By: HighLift
Date Posted: 19 October 2009 at 9:01pm
I'm well interested! I have 4 Kappa 15lf2s sitting here and am seriously contemplating doing this design instead of hd15s due to the ease of build. Would love it if someone could do a hornresp plot for the Kappas to check it's 80-180hz characteristics. |
Posted By: mulch
Date Posted: 26 October 2009 at 4:28pm
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anyone investigated how a version of this would fare when built to house 12s rather than 15s?? looking to source kick in the 100hz+ area with 2 or even 4 PD12SB30's..... any comments there?? mulch 8) ------------- lower mid is where its at :] ... fixing fings ... |
Posted By: davey t
Date Posted: 29 October 2009 at 10:43am
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hey guys, good to see people using this design. I've been on holidays for the last 6 weeks, I just enptied my inbox now though. did i post the hornresp plots at the start? You should be able to model different drivers with that. The fane driver is pretty good. Going to the neolite 3015 only saves you a tiny bit of weight and gives maybe 1 db more sens. I like the single cab. Very small aye. ------------- Minirig portable soundsystem movement |
Posted By: billkeown
Date Posted: 10 December 2009 at 1:46pm
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Four more are born!
   
 
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Posted By: MarjanM
Date Posted: 10 December 2009 at 2:53pm
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Why 3 nl4s? ------------- Marjan Milosevic MM-Acoustics www.mm-acoustics.com https://www.facebook.com/pages/MM-Acoustics/608901282527713 |
Posted By: billkeown
Date Posted: 12 December 2009 at 3:40am
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It's a useful cabling convention we use in monitor systems, which we refer to as 'next mix'
Basically on the cabinet two nl4s are in & link as per usual. The 3rd swaps 2+/2- off the in/link to 1+/1- for example to link up to a passive mid high. Running all the speaker stuff down one piece of 4 core as opposed to multiple cables. See my other topic about amprack panels and you will see the jist of the wiring used at the amplifer end.
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Posted By: phattomherby
Date Posted: 16 December 2009 at 11:41pm
| would there be any difference between the 15 -400 version and the 15-400LF version? cheers |
Posted By: DRUMSZ
Date Posted: 18 December 2009 at 4:04pm
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How would a lab12 model in this any one try ??? |
Posted By: AlfieDring
Date Posted: 22 December 2009 at 3:49am
Got my other 3 singles finished and did a lil christmas houseparty the the other day with em, most pleased and can get them down evil basement stairs on my own while suffering much from sleep dep. sry for the pants photo. Alf |
Posted By: darkmatter
Date Posted: 22 December 2009 at 2:00pm
Initial simulations show that it'd fall straight through the baffle hole. Sd is too small.
Alfie was that on Saturday night?
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Posted By: minaximal
Date Posted: 22 December 2009 at 2:16pm
lol ------------- Subs + Barges = :) http://www.metaacoustics.com" rel="nofollow - www.metaacoustics.com |
Posted By: AlfieDring
Date Posted: 23 December 2009 at 2:09pm
It was indeed, were you in attendance? I had a silly mohawk at the time... Lol @ 12"/15" thing ^ |
Posted By: darkmatter
Date Posted: 23 December 2009 at 2:21pm
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Haha yeah I was :) I had a big bright red jacket. Don't think I can remember you but to be fair I was so stoned I could hardly see let alone make conversation lol.
The journey home was treacherous!
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Posted By: Dougies Music
Date Posted: 17 January 2010 at 1:23am
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Is there any sim data available for this design? I have a feeling I may have finally found a design that will work well with my Omega Pro 15s. Just looking for Kick from about 75-150 I've read through the thread but can't seem to find any details to plot my drivers with... Have I missed something?
------------- http://www.dougiesmusic.com - http://www.dougiesmusic.com |
Posted By: nomis
Date Posted: 17 January 2010 at 9:44am
| bottom of page 2 |
Posted By: Dougies Music
Date Posted: 17 January 2010 at 2:01pm
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------------- http://www.dougiesmusic.com - http://www.dougiesmusic.com |
Posted By: Dougies Music
Date Posted: 17 January 2010 at 3:29pm
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When I try to plot this it gives me very bizarre results using hornresp (v25.00) Am I doing something wrong? Reason I'm doing this is to find out how well Omega Pro 15s work in this design. Davey t's plot with fanes: My plot with fanes:   My plot with eminence:   ...Something is not right here!
------------- http://www.dougiesmusic.com - http://www.dougiesmusic.com |
Posted By: nomis
Date Posted: 17 January 2010 at 5:03pm
| you need to use' combined response' in tools menu after getting to this stage. |
Posted By: Dougies Music
Date Posted: 17 January 2010 at 5:06pm
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Thank you. That's great. ------------- http://www.dougiesmusic.com - http://www.dougiesmusic.com |
Posted By: arena.lsd
Date Posted: 31 January 2010 at 5:38am
firstly well done dave
i would like to know how people are loading the drivers as well or if dave design it to be reloaded as i have tried both ways, with the front loading. i found 90hz down was stuck in the box from 90hz up it got better. i then back loaded the driver and what can i say 1000% better from 90hz down .
i am keeping mine reloaded and will be making another 4 out of ply.
great little box with loads of sub
love to see someone put that in the boot of a car.
------------- www.arenasounds.com |
Posted By: mykey
Date Posted: 31 January 2010 at 9:08am
 please explain?------------- ......just all them hanging there like giant bananas. |
Posted By: arena.lsd
Date Posted: 01 February 2010 at 1:53am
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explain ? the subs not coming out the box through either volume(rechamber) or phase cancelation with the angel of the baffle. these problems went away once the driver is facing out. iether from the driver acting like a phase bung plus the increase of the rear chamber
but you're the expert mikey please tell me why it makes all the diference with the driver back loaded!!!
mike
------------- www.arenasounds.com |
Posted By: arena.lsd
Date Posted: 01 February 2010 at 1:55am
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that's only through my on real time testing and having been designing my own double 18 sub based on the same ideas ------------- www.arenasounds.com |
Posted By: mykey
Date Posted: 01 February 2010 at 2:24am
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it's a kick cab, was just wondering how you were getting sub ------------- ......just all them hanging there like giant bananas. |