Cubo Infra (Cubo HT)

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2 years 4 months ago #24967 by giveortake
Cubo Infra (Cubo HT) was created by giveortake
Use this thread to discuss the Cubo Infra (Cubo HT) design posted  here .

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2 years 4 months ago #24969 by giveortake
Replied by giveortake on topic Cubo Infra (Cubo HT)
Size: 53.6 x 53.6 x 53.6 cm

Frequency: From 17 Hz up to 80 Hz

Enclosure Type: Hybrid

Recommended Driver: Designed around the Lab-12, other drivers that will work: Dayton Audio SD315A-88, Dayton Audio DCS305-4, SB Acoustics SB34SWPL76-4, Infinity 1260W (discontinued).

What is your philosophy of life or your creed ?
\"Have a good time, ALL THE TIME\"

Wisdom is better than silver and gold !

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2 years 4 months ago - 2 years 4 months ago #24970 by Cubo15
Replied by Cubo15 on topic Cubo Infra (Cubo HT)
Measurements inside a room are very sensitive to sub placement, listening position and the dimensions of the room. Placement against a solid wall or in a corner often gives the best low frequency reproduction. The measurements below show the response in a corner *, in down-firing position, with a 24 dB/ octave Linkwitz-Riley low pass at 60 Hz or 80 Hz without a high pass. Based on hearing alone the response drops off quickly below 17 Hz.

* One thick stone wall, one thin stone wall and a wooden floor

Cubo Infra measurements in room

Magenta: Microphone in close proximity, 24 dB/ octave low pass filter at 80 Hz
Purple: Microphone in close proximity, 24 dB/ octave low pass filter at 60 Hz
Turquoise: Microphone at 1 meter, 24 dB/ octave low pass filter at 60 Hz


Cubo
Last edit: 2 years 4 months ago by Cubo15.

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1 year 3 weeks ago #25046 by lawbadman
Replied by lawbadman on topic Cubo Infra (Cubo HT)
Is this enclosure picky when it comes to drivers?

Is the Stereo Integrity SQL 12 a good choice?

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1 year 3 weeks ago - 1 year 3 weeks ago #25048 by Cubo15
Replied by Cubo15 on topic Cubo Infra (Cubo HT)
Drivers with a very low Vas, like the SQL-12, will have low efficiency by nature, meaning they need more power to sound as loud, as for example a Lab12 driver. However, it will definitely work and even be usable down to about 14 Hz, instead of 17 Hz, it will take around 500 W to reach Xmax at that point. Then again just 250 W will already have quite insane low frequency SPL.
Last edit: 1 year 3 weeks ago by Cubo15.

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10 months 3 weeks ago #25050 by vakarm
Replied by vakarm on topic Cubo Infra (Cubo HT)
hello, can I install the ciare 12SW in the cubo infra HT?
Is it worth making 2 boxes for ciare 12?


Cordially
Steph

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10 months 3 weeks ago #25051 by Cubo15
Replied by Cubo15 on topic Cubo Infra (Cubo HT)
Yes, definitely

I would give them about 250 - 500 W continously each, extra headroom doesn't hurt, with a low order high pass at 15 - 20 Hz and a low pass at 60 - 80 Hz. One is awesome, two is awesome + 5 dB.

Cordially Cubo
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