Cubo Kick is a midbass bin to enforce the Cubo series or any other sub bass cabinet in the kick bass region. Like all Cubo models, Cubo Kick is designed to offer maximum performance when used in a stand-alone operation.

Cubo Kick 15 is the largest at 62 x 62 x 62 cm (H x W x D), aimed at 80 - 200 Hz, it has the most output in the 120 Hz area, for that well known "pressure on the chest kinda feeling". Not only do the frontal dimensions match with Cubo 15, 18, 21 and Sub, but the output is also high enough to use Cubo Kick in a 1:2 ratio (1.5:1 for live music). On top of two Cubo 15's it will raise the minimal height for the high mid top to 180 - 190 cm, bringing it well above the crowd ears. The cut sheet fits from a single sheet of 122 x 244 cm, 18 mm 13-ply Baltic birch is preferred. Originally designed around the 18Sound 15ND930. Other drivers that will work:

- Eminence Kappa Pro 15
- Faital Pro 15FH520
- Faital Pro 15FH500

The width of the cabinet can easily be modified, Cubo Kick 15 at 45 cm wide is best used in combination with 12" drivers to get the middle way, 100 - 220 Hz when used stand alone.

Cubo Kick 12 is the smallest cabinet at 45 x 45 x 50 cm (H x W x D). Initial measurements show it's capable of 110 - 250 Hz stand alone, a bit below 100 Hz when stacked in multiples. With the same frontal dimensions as Cubo 12, the output is high enough to use Cubo Kick in an 1:2 ratio (1.5:1 for live music). The cut sheet fits easily from a single sheet of 122 x 244 cm, 15 mm 11-ply Baltic birch is preferred. Designed around the 18Sound 12ND830. Other drivers that will work:

- Faital Pro 12FH520
- Faital Pro 12FH500

Development:

Over 10 prototypes were built to ensure a maximum output and clarity, in a minimum sized enclosure. Cubo Kick works with a wide variety of drivers, some of which are listed above, if unsure if your driver works, send me an e-mail at questionsaboutcubo at gmail dot com. Or visit the forum: Forum Topic Cubo Kick

It's advisable to use dampening material on all the walls in the rear chamber, except the baffle and without restricting air flow to the driver and reflex ports.

Plans Cubo Kick 15:

Size: 62x62x62cm    
Frequency: 80 Hz - 200 Hz    
Enclosure Type: Port Assisted Front Loaded Horn
 
 
Cubo Kick Render 2
 
Cubo KIck Render 3
 
 
Cubo KIck 15 Cut Sheet
 

Plans Cubo Kick 12:

Size: 45x45x50cm    
Frequency: 110 Hz - 250 Hz    
Enclosure Type: Port Assisted Front Loaded Horn
 
Cubo Kick 12 Render

Plans Cubo Kick 18:

Size: 62x62x65cm    
Frequency: 75 Hz - 190 Hz    
Enclosure Type: Port Assisted Front Loaded Horn
 
Cubo Kick 18 has been designed on request and is basically a Cubo Kick 15 redesigned to suit an 18" driver, giving it the exact same outer dimensions as Cubo 18. The increased rear chamber gives it a slightly lower tuning and the slightly longer horn makes it perhaps "the most 120 Hz" design out there.
 
 
 
 
 
 

 

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Cubo15's Avatar
Cubo15 replied the topic: #25002 2 weeks 9 hours ago
Those are oki for sure,

The RCF MB15N351 has been optimized for mid-kick, the only draw back might be the light-ish cone, I would put a lot of dampening material on the walls of the rear chamber (just in case).

Cubo
modalen's Avatar
modalen replied the topic: #24999 2 weeks 5 days ago
I have a few RCF MB15N351.
Would they be oki for Cubo kick?
Resonant frequency fS 42 Hz
Electrical Q QES 0.24
Mechanical Q QMS 4.00
Total Q factor QTS 0.22
Suspension equivalent air volume VAS 191 litres
DC resistance RE 5.6 Ω
Minimum impedance Zmin 6.0 Ω
Voice coil inductance LE 1.65 mH
Force factor B·l 22.5 T·m
Suspension mechanical resistance RMS 5.3 N·s/m
Suspension mechanical compliance CMS 166 µm/N
Moving mass MMD 61.4 g
Moving mass (including airload) MMS 80 g
Surface of the diaphragm SD 900 cm²
Effective diaphragm diameter Ø 33 cm
Maximum linear excursion Xmax ± 6 mm
Excursion limit Xlim ± 19.5 mm
Displacement volume at Xmax VD 540 cm³
Efficiency η₀ 5.68 %
Efficiency bandwidth product EBP 175
Cubo15's Avatar
Cubo15 replied the topic: #24994 1 month 6 days ago
I would go with the 12-300 for both Cubo 12 and Cubo Kick 12 (higher efficiency/ lower Qts works well in both designs).

Cubo
smegdubz's Avatar
smegdubz replied the topic: #24993 1 month 6 days ago
Hello there, would Fane Sovereign 12-300 work in Cubo Kick 12? Or other from Fane product range. Looking to use 12-300 in cubo 12's and want to build kicks as well, sticking with the same manufacturer. Not sure what parameters are crucial in kick design. thanks!
Cubo15's Avatar
Cubo15 replied the topic: #24960 5 months 2 weeks ago
OK, that's a better choice. Let's not pin it down on one parameter though, like Xmax, although an u0 over 3 % is a good indicator for a 12" or 15" kick driver.

Best regards Cubo
mikael.haggman's Avatar
mikael.haggman replied the topic: #24952 5 months 2 weeks ago
Thanks for your reply. But it seems I copied the wrong parameters (sorry for that). They were for the 15-4 S. The right theile below. That might work better with the lower Xmax? The plan is to use this Kick as a low mid driver in combination with a Cubo 18 and a mid/HF cabinett on each side ran on Lab 4000, Lab 2000c and Lab 1300c.


Qms 11,81
Qes 0,31
Qts 0,31
Fs 48,60 Hz
Re 6,06 Ohm
Mms 107,00 g
Cms 0,19 mm/N
Bl 25,09 T*m
Sd 830,00 cm2
Vas 96,87 liter
u0 3,41 %
XMax 8 mm
Le 0,71 mH
Rms 2,77 Kg/s
Efficiency Bandwidth 154,52
Cubo15's Avatar
Cubo15 replied the topic: #24941 6 months 5 days ago
The Ciare 15 ndh driver will work but it's more of a bass/ sub driver, due to it's motor topology (30 mm winding depth) it's designed to have optimal cooling at large excursions. Typical excursion in Cubo Kick is 3 - 5 mm. At low to medium power levels it will be OK (500 - 700 W), well away from clipping, at high power levels (> 700 W) it might burn the ends of the voice coil, as they will never get close enough to the magnetic gap to properly cool (due to a lack of excursion). It's a perfect high power driver for Cubo 15 Extended though.
mikael.haggman's Avatar
mikael.haggman replied the topic: #24940 6 months 1 week ago
Do you think this cabinet will work with a Ciare 15 ndh driver. See specs below:

Qms 11.19
Qes 0.26
Qts 0.25
Fs 27.90 Hz
Re 6.04 Ohm
Mms 143.00 g
Cms 0.23 mm/N
Bl 24.19 T*m
Sd 830.00 cm2
Vas 219.93 liter
u0 1.78 %
XMax 11.5 mm
Le 1.07 mH
Rms 2.24 Kg/s
Efficiency Bandwidth 107.83
Cubo15's Avatar
Cubo15 replied the topic: #24931 6 months 3 weeks ago
Personally I like drivers like the 18Sound 18W2000, typically low Qes (0.2 - 0.3), low to medium medium Vas (say below 250 liter), medium Xmax (you don't need a lot) and preferably a low Le. These kind of drivers tend to have an n0 (Eta zero) around 3% or higher and an EBP above 100.

faitalpro.com/en/products/LF_Loudspeaker...dex.php?id=151070160
faitalpro.com/en/products/LF_Loudspeaker...dex.php?id=201070115

Faital Pro exaggerates the Xmax figures a bit, otherwise I would say Xmax below 9 mm, higher is usually a sign that it's more a sub driver.
Stefist's Avatar
Stefist replied the topic: #24929 7 months 3 days ago
Hello !

Any Idea for a 18" speaker that could fit in the cubo kick 18 ??

Thanks
Cubo15's Avatar
Cubo15 replied the topic: #24920 8 months 5 days ago
I think the easiest way is to find a Sketchup model, or put in the parameters in Sketchup (2D) in Metric (centimeters), then change to Imperial (Window - Model Info - Units - Decimal/ Fractional).

Cubo
freqmason's Avatar
freqmason replied the topic: #24919 8 months 5 days ago
Hello Cubo! I'm using 4 of your 15" sub design and looking to build a pair of the 15" kick bins to go with them. is it possible to obtain the plans in imperial measurements somewhere?
Cubo15's Avatar
Cubo15 replied the topic: #24909 8 months 3 weeks ago
The 15" or the 18"?
Lionheart's Avatar
Lionheart replied the topic: #24908 8 months 3 weeks ago
Tell me can I use Celestion ftr4080fd in a cubo kick ?
Cubo15's Avatar
Cubo15 replied the topic: #24876 10 months 3 weeks ago
Yes, the 15nw76 has written kick all over it.
resko1's Avatar
resko1 replied the topic: #24875 10 months 4 weeks ago
Would the 15nw76 be a suitable driver for the kick 15?
Cubo15's Avatar
Cubo15 replied the topic: #24873 11 months 1 week ago
The horn bracing is spaced out at 1/3 intervals, the port bracing at 1/4. For Cubo Kick 15 and 18 those intervals equate to those measurements.

Cubo
z3r0soundsystem's Avatar
z3r0soundsystem replied the topic: #24872 11 months 1 week ago
So if I understand correctly: The missing plans for the Cubo Kick 15 & 12 are the same as the ones for the Cubo Kick 18...? Just need to fill in the right sizes...?
Cubo15's Avatar
Cubo15 replied the topic: #24839 1 year 1 month ago
Typical for a good 15" kick driver is an Xmax around 7 mm, at least 4 - 5 mm but as soon as Xmax gets beyond 9 mm it's a good indicator you're looking at the wrong driver.

Both the Beyma and the Oberton are high power sub bass drivers, great for Cubo 15 Extra Extended not optimal for Cubo Kick. I would look at 15" drivers with a 3" - 4" voice coil, Qts around 0.3 or lower and before mentioned Xmax figures, like the Oberton 15NXL700 or 15NMB500.

Can I make two front skids (two pieces) slightly bent like a moon or should they be completely straight as in the design?

I will have to see it to give a good answer to that.

Best regards Cubo
morebital's Avatar
morebital replied the topic: #24838 1 year 1 month ago
Hi!

Dear Cubo I have question, - very important to me.
Thank you for your time if you would like to help me.
I plan to make a Cubo Kick 15 and want to use one of those speakers Beyma 15QLEX1600Fe or OBERTON 15NXB1200 (or maybe another from OBERTON?)

Which speaker do you think will be better? I want to widen the frequency response a bit up and down.


And the secon question:

Can I make two front skids (two pieces) slightly bent like a moon or should they be completely straight as in the design?
Hope you can understand what I mean.Thank you for answering.
Please advise if this is a good choice? Here are the parameters:

BEYMA 15QLEX1600Fe

Nominal diameter 380 mm 15 in
Rated impedance 8 Ω
Minimum impedance 6,3 Ω
Power capacity 1 1.600 WAES
Program power 2 3.200 W 
Sensitivity 96 dB 1W / 1m @ ZN
Frequency rangeRecom. enclosure
(Bass-reflex design) 35 - 1.000 Hz
Voice coil diameter 101,6 mm 4 in
Bl factor 35,6 N/A
Moving mass 0,254 kg
Voice coil length 32 mm
Air gap height 15 mm
Xdamage (peak to peak)  60 mm 
Resonant frequency, fs 33 Hz
D.C. Voice coil resistance,Re 5,3 Ω
Mechanical Quality Factor, Qms 6,3
Electrical Quality Factor, Qes 0,22
Total Quality Factor, Qts 0,21
Voice Coil Inductance, Le 3,7 mH
Equivalent Air Volume to Cms, 102 l 
VasMechanical Compliance, Cms 93 µm / N
Mechanical Resistance, Rms  8,3 kg / s
Efficiency, η0 1,6 %
Effective Surface Area, Sd 0,088 m2
Maximum Displacement, Xmax 13 mm
Displacement Volume, Vd 1144 cm3
Voice Coil Inductance, 3,7 mH

OBERTON 15NXB1200

Nominal Diameter 15"/388 inch/mm
Impedance 8 Ohm
Minimum Impedance 6.55 Ohm
Power Capacity AES ¹ 1200 W
Program Power ² 2400 W
Sensitivity 97 dB/W/m (50 -1000 Hz)
Frequency Range 38 - 1000 Hz
V. C. Diameter 100 mm
Voice Coil Material Copper
Voice Coil Former Glass fiber
Voice Coil Winding Depth 29 mm
Magnet Gap Depth 10 mm
Cone Material Paper with carbone fibers
Basket Die Cast Aluminium
Magnet Neodymium
Flux Density 1.27 T

Fs 38.49 Hz
Qms 8.255
Qes 0.337
Qts 0.324
Vas 111.94 litres
Mms 146.79 grams
Re 5.3 Ohms
Sd 829.6 cm2
Xmax* ±12 mm
Cms 0.117 mm/N
BL 23.62 T.m
Le at 1kHz  0.713 mH
Andrew4566's Avatar
Andrew4566 replied the topic: #24836 1 year 2 months ago
For live sound with a full drum set bass and keys is there an advantage between the Cubo Kick 15 vs 18? 

For most venues space is limited so likely will often be a single Kick per side used with Cubo subs.

-Andy
Andrew4566's Avatar
Andrew4566 replied the topic: #24834 1 year 2 months ago
What is a recommended XMAX for the Cubo Kick?

-Andy
Cubo15's Avatar
Cubo15 replied the topic: #24831 1 year 2 months ago
An increase in EBP is not necessarily good, it depends on your use, i.e. a single Cubo Kick or a stack (aim between 110 - 150 if unsure). A lower Qts x Vas product suggests better performance in a cabinet with a smaller chamber. A typical Cubo Kick driver will have a Qts x Vas product between 30 - 60.
Andrew4566's Avatar
Andrew4566 replied the topic: #24830 1 year 2 months ago
So for a given FS the lower Qts increases EBP (good) but to get a higher Qts VAS product you must have a big VAS... at what point does the VAS get impacted negatively buy the Cubo box size?....Or am I totally in left field?

-Andy
Cubo15's Avatar
Cubo15 replied the topic: #24829 1 year 2 months ago
Fs, Qts and Vas are the three primary parameters, so if anything you should be looking for the Qts x Vas product. Although I wouldn't worry too much as the port tuning also raises.

Cubo Kick 15 is deeper, meaning the horn is longer (and larger) thus it starts amplifying the output at a lower frequency. Typically the 15" will have more port output as well, again amplifying the lower kick.

P.S. Don't get your mm's and cm's mixed up ;)