Hi all,
I got a pair of 15tbx100 (8ohm) that I'm thinking of building a pair of BR-enclosure for. Has anyone built a great sounding woofer with these drivers?
The recommended Sub15 enclosure is to deep, can only fit max depth of 500mm. No max height and width dimensions...
Grateful for any recommendations!
Thanks In advance
I got a pair of 15tbx100 (8ohm) that I'm thinking of building a pair of BR-enclosure for. Has anyone built a great sounding woofer with these drivers?
The recommended Sub15 enclosure is to deep, can only fit max depth of 500mm. No max height and width dimensions...
Grateful for any recommendations!
Thanks In advance
I had this plan saved from quite sometimes, but not got the chance to build one.
You might like it. Can give it a try.
The attached dimension text is not very clear to read. But that all I've got.
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Yes, the name is so close that it makes me think it's the same, they have similar specs anyway. Regards. 🙂
Yeah the tbw us just a bit more badass. and their frames are radically different (tbw has the sw100 frame)
Sidewinder, he says max depth is 500mm
Sidewinder, he says max depth is 500mm
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For a depth not more that 500mm. 18 Sound's plan BR115 would be ideal. Dimension are (H X W X D) 600 X 500 X 500mm.
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The drivers are about 2-3 years old, tbx100... so i guess it the old specs. perhaps? 🙂
I got them in THAM15 at the moment, but I lose the my minidsp and power amp soon. So I was thinking a passive bass reflex tune to about 35-40 Hz would be ideal.
Sidewinder: The BR115 looks great, but the port tune are a bit high. Is it possible to modify the ports for lower tune and keep the size/dimensions?
I got them in THAM15 at the moment, but I lose the my minidsp and power amp soon. So I was thinking a passive bass reflex tune to about 35-40 Hz would be ideal.
Sidewinder: The BR115 looks great, but the port tune are a bit high. Is it possible to modify the ports for lower tune and keep the size/dimensions?
oLjud,
If you want to use the same/similar design as in the link from this post, B&C Sub 215-1 for the 2x B&C 15TBX100, doing some reverse reverse engineering you get a BR enclosure with 280L net and 2x ports dimensions 780mmx50mm and 300mm lenghts, tuned to 38Hz. This gives F9@30Hz (F3~35Hz, F24~20Hz).
General outside dimensions for 25mm ply are as follows:
880mm x 770mm x 600mm (328.7L)
(2xPorts 34L+2xdrivers 11L+ bracers 3L. Total: ~48L)
If building a speaker for one driver and approx. 140L net you have:
440mm x 770mm x 600mm (154.4L)
Making ports/area smaller and 1 driver only
(2xPorts 17L+2xdrivers 5.4L+ bracers 2L. Total: ~24.4L)
154.4-24.4=130L net (internal).
If using max. depth 50 (480mm, let's say) as you mentioned:
outside dimensions are
700mm x 480mm x 600mm (~154L)
I would make it more interesting and recalculate the speaker for a smaller size and/or lower tunning where you can get tuned to 35Hz or lower (as Norman Bates) giving F6@30Hz (F3~33Hz, F24~18Hz).
Tuning now for 34Hz (BR 130L net)
700mm x 480mm x 600mm outside dimensions
2x ports dimensions 220mmx50mm and 300mm lenghts for the lower tunning, make it 2x300mmx50mm square area and 300mm lenghts if you want the high tuning.
Very important what ply thickness you are using and type of ports square or round?!
If you want to use the same/similar design as in the link from this post, B&C Sub 215-1 for the 2x B&C 15TBX100, doing some reverse reverse engineering you get a BR enclosure with 280L net and 2x ports dimensions 780mmx50mm and 300mm lenghts, tuned to 38Hz. This gives F9@30Hz (F3~35Hz, F24~20Hz).
General outside dimensions for 25mm ply are as follows:
880mm x 770mm x 600mm (328.7L)
(2xPorts 34L+2xdrivers 11L+ bracers 3L. Total: ~48L)
If building a speaker for one driver and approx. 140L net you have:
440mm x 770mm x 600mm (154.4L)
Making ports/area smaller and 1 driver only
(2xPorts 17L+2xdrivers 5.4L+ bracers 2L. Total: ~24.4L)
154.4-24.4=130L net (internal).
If using max. depth 50 (480mm, let's say) as you mentioned:
outside dimensions are
700mm x 480mm x 600mm (~154L)
I would make it more interesting and recalculate the speaker for a smaller size and/or lower tunning where you can get tuned to 35Hz or lower (as Norman Bates) giving F6@30Hz (F3~33Hz, F24~18Hz).
Tuning now for 34Hz (BR 130L net)
700mm x 480mm x 600mm outside dimensions
2x ports dimensions 220mmx50mm and 300mm lenghts for the lower tunning, make it 2x300mmx50mm square area and 300mm lenghts if you want the high tuning.
Very important what ply thickness you are using and type of ports square or round?!
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Yes it is.
If you prefer this design instead just do some reverse engineering with net dimensions and tuning and adapt to the new situation, what do you prefer?
If using the last design in post #7 and using the same 18mm ply and 2x105mm diam. ports, for the same enclosure and a tuning of 35Hz, you need 320mm ports length.
That would be ~100L@35Hz, F3=37Hz (free-field) and around -7db@30Hz. In room would be fine, use one of this below. Regards. 🙂
Room Mode Simulator
http://www.diyaudio.com/forums/multi-way/241449-new-program-room-response-simulation.html
That would be ~100L@35Hz, F3=37Hz (free-field) and around -7db@30Hz. In room would be fine, use one of this below. Regards. 🙂
Room Mode Simulator
http://www.diyaudio.com/forums/multi-way/241449-new-program-room-response-simulation.html
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