cubo 12

beyma 12lx60_v2 - good work in cubo

Hi tda-audio,

Sorry, could you use some more words please? I do have a hard time understanding what you're saying.

What does CUBOturic stand for? Any reason in particular you're using the driver with the magnet in the chamber (12LX60)?

Best regards

Cubo

I did test a speaker inside or outward



CUBOturic 10" version (faital w10n8-700)

I have not felt difference..(outside\inside )

but - magnet outside - air noises per magnetic system..

magnet outside should play lower......

theoretically ......

magnet outside should play lower......

I've measured Cubo 12, 15, 18 and Cubo Sub, wherever possible, both with the magnet inside the chamber as with the magnet nside the horn. All models show improved low frequency reproduction with the magnet inside the horn. I do not think you can actually feel or hear the difference unless you directly ABX them with the right frequency material.

It's unfortunate that the chuffing is present though. I know it kept me from building some promosing designs in the past.

Best regards

Cubo

I've measured Cubo 12, 15, 18 and Cubo Sub, wherever possible, both with the magnet inside the chamber as with the magnet nside the horn. All models show improved low frequency reproduction with the magnet inside the horn.

please - show graphs!!!

difference

big difference ?

tda-audio wrote:

I've measured Cubo 12, 15, 18 and Cubo Sub, wherever possible, both with the magnet inside the chamber as with the magnet nside the horn. All models show improved low frequency reproduction with the magnet inside the horn.

please - show graphs!!!

difference

big difference ?

from listening tests and by ear and using smaart a/b'ing them its around 3db extra 30 to 45 region, but 6 db extra in the very lower regions 20hz..... i was using an un-calibrated mic (ecm8000) this was the cubo 18 loaded with the pd1850 driver......

And graphs for the earlier states of Cubo Sub: www.freespeakerplans.com/index.p ... 555#p11555

Best regards

Cubo

from listening tests and by ear and using smaart a/b'ing them its around 3db extra 30 to 45 region, but 6 db extra in the very lower regions 20hz..... i was using an un-calibrated mic (ecm8000) this was the cubo 18 loaded with the pd1850 driver......

my be 18" version...

And graphs for the earlier states of Cubo Sub: www.freespeakerplans.com/index.p ... 555#p11555

Best regards

Cubo

thank you Cubo.



p.s.

I to like magnet in chamber - not magnetic noise (12" version)


skin for cabinet

smiley1 hello,

last weekend, I reversed the driver in my Cubo12 to the "magnet in mouth" mounting.
after a little listening session, it does seem to go down lower, a bit. smiley17
but my flat is too small for proper testing, I still have to try it outside and in bigger rooms...and in party mode smiley16 !

by the way, I forgot to test reversing the driver wiring to go with the reversal of the driver, so it might sound better/lower than what I heard during my listening session!

here are a few pics


before, with magnet in chamber:


without gril:


open:


magnet in mouth:



...let's have a listen !