cubo 12

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12 years 11 months ago #13182 by Wannabass
Replied by Wannabass on topic cubo 12
smiley1 Thank you for your tips again,

I 'll try to glue up my cubo12 during the week and hope it will be dry and ready to test next week end !



for those interested, I put on a few pictures of the build here :
bernardmaurice.blogspot.com/

to be continued... smiley17

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12 years 11 months ago #13187 by GekoMusic94
Replied by GekoMusic94 on topic cubo 12
Nice build Wannabass!
Cubo: How does it sim the RCF LF12G301 in the cubo 12?

Thanks, Giacomo. smiley1

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12 years 11 months ago #13196 by Cubo15
Replied by Cubo15 on topic cubo 12
Are those pictures before glue-ing? Just asking cause I didn't see any t-nuts mounted yet. There a pain to get in after glueing the cabinet up.

@Giacomo: Works like a charm!

Best regards

Cubo

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12 years 11 months ago #13207 by Wannabass
Replied by Wannabass on topic cubo 12
@ Giacomo :
-Thank you for Hermie (my building friend, he's the woodmaster) !
I first was going to build a mth-30 like you did, and really appreciated your pics/questions, so I hope my pics will be able to help/motivate others too smiley20


@Cubo :
Yes the pic were taken before gluing, to check if all the parts would fit together (they do!)
don't worry : the t-nuts are now in place,

smiley1 thanks for caring!

hoping to hear it this week end, to be continued....

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12 years 11 months ago #13338 by MAutopsy
Replied by MAutopsy on topic cubo 12
Mr Cubo,
Want to use Goldwood GW12090 ( www.goldwoodsound.com/Woofers1_files/GW12090.pdf ). Will they perform better in cubo 12 than in my MTH30's? (sim for that here at bootom: www.freespeakerplans.com/index.p ... 3&start=90 ).

Mounting direction, HPF, etc would be helpful.
Thank you sir,
Mike

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12 years 10 months ago #13382 by Cubo15
Replied by Cubo15 on topic cubo 12
The Goldwood sims OK in both the Cubo 12 and the MTH-30. It will go 5 Hz deeper in the MTH-30 then in Cubo 12 at 15% increased excursion. I would recommend a 45 Hz high pass on both the NTH-30 and Cubo 12, though 40 Hz is possible if needed. Mounted with the magnet inside the horn for Cubo 12.

Best regards

Cubo

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12 years 10 months ago #13483 by kentech
Replied by kentech on topic cubo 12
Have anyone testet real life Cubo 12 Versus an 18" BR speaker ?
I know that in sims, plots, the Cubo12 has 100 Db aprox and an 18" in BR has the same SPL as itself. No + Db in BR.
But i want to know that in real life it;s the same...
I'm planing to build 2 MTH 30 and 2 Cubo 12. I have already the Cheap board for the cabs but i am curious about this "combat" between a Cubo 12 and an 18" in BR, REAL LIFE.
Thanx

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12 years 10 months ago #13539 by niklasvalen
Replied by niklasvalen on topic cubo 12
I have this speaker and wondering if i can use it in the cubo12?
www.hoejttalerbutikken.dk/getdoc.asp?id=...0C3031B88B8938840904

the EBP is 87 which is <100

speaker spec:
12" woofer 180w rms 450w max
fs 27 Hz
Qms 4.1
Qes 0.33
Qts 0.31
Xmax +/- 6.4 mm
SPL 93 dB
Vas 97L

will the speaker lose control due to low EBP-value and just flap around"?

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12 years 10 months ago #13597 by Cubo15
Replied by Cubo15 on topic cubo 12

between a Cubo 12 and an 18" in BR, REAL LIFE

The measurements in the plan-section are real life.

Personally I would trust measurements over the human hearing, as the human hearing is easily fooled. The best of course is the combination of measurements and human hearing as sound can be described both objectively and subjectively.

I'm not sure if you're aware; a Cubo 12 will do something @ 40 Hz and a lot above 50 Hz. An 18" reflex tuned low might not sound as loud as Cubo 12 but will take over below 50 Hz-ish and therefore be the more appropiate choice for music that contains effective low frequencies. Cubo 12 will emphase the kick and can offer transients the average 18" is not known for.

Personally I would use Cubo 12 for music that doesn't neccesarly contains a lot of lows like trance, hardstyle, gabba, techno, tekno, regular pre-recorded pop music and most pre-80/90's.

@Niklas: I wouldn't describe the EBP as the formula to calculate such a statement. In fact I would not outcast a driver based upon EBP alone.

I will have to answer you're other question latr on.

Best regards

Cubo

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12 years 10 months ago #13647 by Cubo15
Replied by Cubo15 on topic cubo 12
@Niklas: The link you offer doesn't seem to work anymore. I had to guess Sd and Re (knowing it's a 4 ohm driver). Results might be off.

It seems to be a good driver for Cubo 12, with reasonable output above 40 - 45 Hz even though Fs is low.

Best regards

Cubo

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