Beyma 12br70. Suitable for Sealed enclosure?

[youknowyou]

I have a Beyma 12br70 and wanted to know if it would be suitable in a 130L sealed ecnlosure.
LOW & MID FREQUENCY 12BR70 | Beyma

thanks!

 

[pieter t]

With the 12BR70 datasheet I have (same as your link) a 130 L sealed enclosure would give you a system Q of 0.72 (little bit underdamped) and Fb of 45 Hz.
But be aware there have been other 12BR70's in the past with slightly different T/S parameters.
In general this woofer is very suitable for a sealed enclosure.

 

[tigeranand]

I have a Beyma 12br70 and wanted to know if it would be suitable in a 130L sealed ecnlosure.
LOW & MID FREQUENCY 12BR70 | Beyma

thanks!

hi did you make any enclosure for the beyma 12br70 I have the same drivers very keen to know

 

[youknowyou]

hi did you make any enclosure for the beyma 12br70 I have the same drivers very keen to know

Wood is cut. assembly starts today!
cabinet will be quite small. 19 inch by 12 x 10 inch, BR.
with such a small cab, i dont think the 12BR70 would go low enough for sealed

 

[Lojzek]

Do you expect this unit to perform well in such a small vented cabinet?

edit: Its Vas 142, Qts 0.5; => a very large vented cabinet volume

 

[youknowyou]

Do you expect this unit to perform well in such a small vented cabinet?

edit: Its Vas 142, Qts 0.5; => a very large vented cabinet volume

I had to try as my goal is to see just how small the cab can be to still feel i get the performance of a 12". the volume will be about 22L. Im building cabs that allow me to swap the front baffle and so I can try all sorts of different driver combinations

You think the 12br70 wont work at all ported? What would be minim volume for good ported performance?

 

[Lojzek]

If I were you, I'd settle for about 150 litres vented.

 

[milezone]

Wood is cut. assembly starts today!
cabinet will be quite small. 19 inch by 12 x 10 inch, BR.
with such a small cab, i dont think the 12BR70 would go low enough for sealed

Please explain the coincidence -- this thread was started in 2016, a member revived it today after just two posts, you reply that the wood has been cut and assembly begins... I am confused.

 

[mordikai]

Please explain the coincidence -- this thread was started in 2016, a member revived it today after just two posts, you reply that the wood has been cut and assembly begins... I am confused.

seems like the normal diy timeframe to me.

 

[youknowyou]

Please explain the coincidence -- this thread was started in 2016, a member revived it today after just two posts, you reply that the wood has been cut and assembly begins... I am confused.

LOL
i answered a post i though was a recent of my thread where i was discussin using my 12br70 with a wideband driver i wanted to match.

to update this thread, ill be building two cabinet:
a standmount about 22L
floorstander about 60L

 

[tigeranand]

Do you expect this unit to perform well in such a small vented cabinet?

edit: Its Vas 142, Qts 0.5; => a very large vented cabinet volume

is it possible to use 2nos driver beyma 12br70 in one box 120 litre sealed or ported

 

[Lojzek]

Two of these in such a cabinet:

• vented=compromised design, against good practice at least, whether you may like it, up for you to judge
• sealed= better

 

[tigeranand]

Two of these in such a cabinet:

• vented=compromised design, against good practice at least, whether you may like it, up for you to judge
• sealed= better

I am new in DIY and actually what ever little I have experinced I alwasy liked Sealed subs I have a Peerless XLS in 30 litre sealed box 1 driver per box and in a medium room it very nice of course I love more pressure thats why I wnat to try beyma since I have 4 drivers with me