Cubo 18

what is the difference in Magnet facing out and in magnet in chamber of cubo 18? what is the advantage of magnet in chamber?

freespeakerplans.com/kunena/38-hosted-pl...ubo-15?start=10#7901

Best regards

Cubo

my lovely 4 cubo 18.. :side:

thanks, i like it.

i have some peavey lomax18 can they work?
fs 31,5
re 5,4
sd 0,118
bl 23,4
vas 294
mms 194
qms 11,15
qes 0,33
qts 0,386
xmax 10,2
1200 w cont.

The Peavey Lomax 18 will work best in Cubo 18 Extended, with the magnet in the horn (visible). The Lomax 18 will also work in Cubo Sub.

Best regards

Cubo

Thank you very much for availability
probably I'm going to cubo extended because of the size
which hpf is recommended for this woofer? Keep 40hz or I can go a little low

For the Lomax you can use a high pass at 35 Hz or higher. I suspect it to work best up to 100 Hz.

Best regards

Cubo

Greetings from Jamaica. I am rebuilding my sound and considering cubo 18 extended. I play roots reggae, cd and vinyl, strictly outdoor venues, 300-500 persons. Box portability and weight are not issues because I have storage, transport, and many helping hands. Ease of construction is important, no access to CNC, etc. I have used 18 scoops in the past but this time around will be mixing live music from time to time, so I am thinking cubo 18 extended using rcf lf18x451 driver. Comments suggest cubo 18 is indoor venue only. System is 18 sub to 15 kick , 12 mid, 1.5 compression driver. Any comments, questions, or suggestions welcomed. Give Thanxx, easy my youth

The consensus is that Cubo's have the same "throw" as a reflex cabinet but louder, as you have used 18" reflex before I guess you know what to expect when used outside.
I've noticed that Cubo Sub throws a bit further. If one would say a Cubo 15 throw's up to 20 meter, than a Cubo Sub would throw up to 30 meters, whereas a scoop will throw 40 - 50 meter.

If cabinet size/portabilty isn't an issue, you could try Cubo Sub instead, that would also make sure you aren't missing any lower notes. The L18X451 is a great driver for sub duty and will work in Cubo 18 Extended and Cubo Sub equally well.

Do yo need plans for 15" kicks as well? I've been working on Cubo Kicks for quite some time now and I basically just need a few people tell me how great it is before I dare launching the plans officially. The benefit is that it's for 15" drivers, stacks and looks nicely with other Cubo's and is easy to build as well.

Best regards

Cubo