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cubo sub

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URL: https://forum.speakerplans.com/forum_posts.asp?TID=67654
Printed Date: 28 March 2024 at 1:44pm
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Topic: cubo sub
Posted By: TechnoChef
Subject: cubo sub
Date Posted: 04 June 2012 at 6:55pm
I finally got around to putting together a pair of cubo subs for my beyma 18g550s, testing them this afternoon has put a huge smile on my face - shame the same can't be said for the neighbours!

They play comfortably down to 30hz and sound fairly flat from 35 up (no measurements at all, just playing frequency sweeps).
And loud isn't even the word, half the roof of my garage has rattled loose after half an hour at moderate level from an EP2500!

Thank you Mr Cubo!

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I think I'm in love with your mum.



Replies:
Posted By: LjudLahger
Date Posted: 04 June 2012 at 9:58pm
Clap


Posted By: GEB
Date Posted: 06 June 2012 at 3:13pm
Would love to see some pics, finished/unfinished, whatever. Been wanting to build some of these for a while, it might just push me to go out and get some wood (in a non sexual way of course!).


Posted By: smoore
Date Posted: 06 June 2012 at 5:16pm
Do it :) I built my first out of wood i stole from a building site :p
 
http://www.facebook.com/media/set/?set=a.10150105889493951.284126.659953950&type=3#!/photo.php?fbid=10150223957868951&set=a.10150105889493951.284126.659953950&type=3&theater" rel="nofollow - http://www.facebook.com/media/set/?set=a.10150105889493951.284126.659953950&type=3#!/photo.php?fbid=10150223957868951&set=a.10150105889493951.284126.659953950&type=3&theater


Posted By: mobiele eenheid
Date Posted: 06 June 2012 at 6:32pm
@Smoore: Next time turn the grain 90 degrees...oh, and buy it off course.
 
Cubo Sub was the only Cubo design able to to vibrate the decoration sheets in the main test hall.
 
Best regards Johan
 
 
 


Posted By: TechnoChef
Date Posted: 06 June 2012 at 10:56pm
This was halfway through the build, MDF as it was cheap and amateur woodwork as we're amateurs!



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I think I'm in love with your mum.


Posted By: Mrd999
Date Posted: 07 June 2012 at 10:32am
After building a couple of these myself.Any tips for another novice first time builder ?
Fairly handy with a  spanner and have re built cars and stuff, will be buying a circular saw and possibly a router owt else I may need ?


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What goes around, comes around


Posted By: TechnoChef
Date Posted: 07 June 2012 at 6:20pm
A good drill and a long metal ruler are essential. To save on RSI we bought an electric screwdriver (essential aswell IMO!) and a belt sander. To save my back I use old speaker cabs as a workbench so I'm not bending down all the time.

Buy more screws than you need, its a pain in the arse running out on a double jubilee bank holiday! Make sure to route any internal panels before they go in. Same goes for baffles, cut the driver cutout and fit T-nuts before it goes in.

Errm, what else? (this is verbatim what my brother told me last week BTW, the cubo in that picture is the first speaker I've built completely by myself, the rest I blag him to do most of the building!) Oh yeah, cut the braces to fit afterwards, as you can see from the picture, I cut mine before the cab was together and missed by a few mm!

If you haven't read it already, check out Rog's building guide on the main Speakerplans.com site. Then there's the old adage of "measure twice, cut once".

Oh, and good music and good smoke always help!

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I think I'm in love with your mum.


Posted By: Mrd999
Date Posted: 07 June 2012 at 6:31pm
Quality cheers, all sounds good to me, well sort of given up the smoke, smoked for over 23 years, every single day without fail for most of that time, still do it occasionally in social situations, but my head needed a break, super silver haze turned me into a slurring mess.
Got leccy driver so that's good to go, will try and get the main parts cut from where ever I get the wood from, but b+q don't do the full size sheets, so trying to find somewhere else


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What goes around, comes around


Posted By: TechnoChef
Date Posted: 08 June 2012 at 6:00pm
Originally posted by Mrd999 Mrd999 wrote:

Quality cheers, all sounds good to me, well sort of given up the smoke, smoked for over 23 years, every single day without fail for most of that time, still do it occasionally in social situations, but my head needed a break, super silver haze turned me into a slurring mess.
Got leccy driver so that's good to go, will try and get the main parts cut from where ever I get the wood from, but b+q don't do the full size sheets, so trying to find somewhere else




I'm on 12 years so far, thinking it's time for a break but we've got lemon haze round my way at the moment and it's too good for me to be quitting!
Check eBay for cheap sheets of wood, works out a little less sometimes than buying it direct and it's delivered to your door!
I'd check the tolerances with the people cutting it if you go that route, we've had cuts way out in the past from the local builder's merchant, worse even than when we cut the wood!

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I think I'm in love with your mum.


Posted By: GregM
Date Posted: 08 June 2012 at 7:14pm
Originally posted by TechnoChef TechnoChef wrote:

This was halfway through the build, MDF as it was cheap and amateur woodwork as we're amateurs!

 
Is that 9mil MDF on all sides except half the floor of the mouth?


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Remember, if you don't want to hear the answer, don't ask the question!


Posted By: TechnoChef
Date Posted: 08 June 2012 at 11:57pm
It's all 18mm MDF in there, on the floor if the mouth it's doubled, then tripled at the very front. All the bracing makes it a very solid but heavy cab, definitely going to need some wheels on these!

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I think I'm in love with your mum.


Posted By: vibez
Date Posted: 09 June 2012 at 1:36pm
What drivers wotk well in the cubo 18?


Posted By: AvLee
Date Posted: 09 June 2012 at 4:16pm
If you build the Cubo 18 Extended version PD1850's come alive!


Posted By: vibez
Date Posted: 09 June 2012 at 6:16pm
Originally posted by AvLee AvLee wrote:

If you build the Cubo 18 Extended version PD1850's come alive!



Covering what frequency range?


Posted By: TechnoChef
Date Posted: 10 June 2012 at 6:58pm
IIRC the cubo 18 goes down to 35 or 40Hz, and up to about 100-110.

I took my new cubo subs out last night for a cheesetastic birthday party and they're pretty damn hefty! HPF at 30hz, crossed into kick bins at 90. Very pleased with them, can't wait to put some good basslines through them.



-------------
I think I'm in love with your mum.


Posted By: bee
Date Posted: 11 June 2012 at 12:08am
high pass the 1850's at 33.5hz you can cross then out up to 130hz after that they get honky.... a stack of 8 causes a lot of smiley faces...... great for venues upto 500 people... but lack throw for bigger venues........  a stack of 8 gets you in a lot of trouble with the noise police lol.....

a pic of the old killerhurts audio rig.


and another 4 just being finished pic taken last year.....





Posted By: bcs
Date Posted: 11 June 2012 at 10:55am
hi Bee.
how would you rate the cubo sub in terms of throw against the infamous ev t18. 4 t18 with the mouths coupled used to throw quite nicely in front of the stack as well as the back.......lol. very intersted in the cubo sub at present.
 
 


Posted By: bee
Date Posted: 11 June 2012 at 11:13pm
the t18 is not in the same league...... The cubo sounds cleaner, louder, and has better throw....ive a/b the cubo 18 extended against the t18......


Posted By: knet94
Date Posted: 12 June 2012 at 12:18am
Personally I wouldn't take them above 110 hz.


Posted By: smoore
Date Posted: 13 June 2012 at 10:04pm
Bee i'm figuring out what 4x18" cabs to build instead of my 3 cubo 15 (which i absolutely love but sadlly need more bass...)
 Going for PD186 as theyr a good cheap-ish 18", and was going to put them in single selenium hb1805s (basicly a CVsl36 design), Unless you think the cubo sub would be a better option?


Posted By: bee
Date Posted: 13 June 2012 at 10:14pm
smoore your best bet is to get some mdf and build one of each, that way you will be happy with your choice. sound and speakers is a very individual thing...... for me i would go for the cubo sub, but im not you.......  you can get standard mdf for under £9.00 per sheet, so 3 sheets should do both cabs, and a lot cheaper than building test cabs from birch ply....... 


Posted By: smoore
Date Posted: 13 June 2012 at 10:17pm
thats a very good point :) thanks for the advice! I was planning on building one of these seleniums out of mdf to try first anyway.
 
 Nice one :)


Posted By: bee
Date Posted: 13 June 2012 at 10:20pm
when you built both, a full report please.... and a few build pics lol..... we all love build pics.Tongue


Posted By: Crop
Date Posted: 14 June 2012 at 1:03am
Originally posted by bee bee wrote:

when you built both, a full report please.... and a few build pics lol..... we all love build pics.Tongue


+1


Posted By: AvLee
Date Posted: 14 June 2012 at 6:10pm

Originally posted by knet94 knet94 wrote:

Personally I wouldn't take them above 110 hz.



I don't drive my Cubo 18's above 80hz for maximum http://www.google.co.uk/search?hl=en&client=firefox-a&hs=qkE&rls=org.mozilla:en-GB:official&sa=X&ei=8RraT9nBLaSS0QWMr4ShBA&ved=0CAgQvwUoAQ&q=efficiency&spell=1&biw=1136&bih=763" rel="nofollow - efficiency !

Edit: I start the roll off at 80hz


Posted By: smoore
Date Posted: 14 June 2012 at 6:20pm
For sure I always take plenty of pics ;) Here's an album of most of my builds - http://www.facebook.com/media/set/?set=a.10150105889493951.284126.659953950&type=3

 Feel free to add me on facebook :)

 Will hopefully be getting some mdf early next week to start the selenium folded horn but not sure how long till i can get PD186's. I'l start a new topic when i've done em


Posted By: smoore
Date Posted: 14 June 2012 at 6:22pm
P.s just for the record that album is my first and only woodworking experience! The first cubo is the 1st cabinet i ever built and still building in me parents garage!


Posted By: TechnoChef
Date Posted: 14 June 2012 at 7:57pm
Respect for the novice builders!

And don't forget when you're testing that you'll get more low end extension from the selenium/cv horn when you add the other three!

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I think I'm in love with your mum.


Posted By: smoore
Date Posted: 14 June 2012 at 8:25pm
Yea i know :) its more of a test to see which has better sound/output. Thanks man! 


Posted By: discosucks
Date Posted: 14 April 2014 at 12:56am
How would the fane colossus 18 1500 do in the cubo sub to be used as a dedicated sub unit with es18s on kick duties ? has anyone simed it?


Posted By: smitske96
Date Posted: 04 December 2018 at 9:51am
Anyone that has some measurements from the cube sub?




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