Hi friends,
Couple of weeks ago I bought this nice looking TB drivers.
My plan is to put them into a simple BR cabinet.
I Also like to reuse my old Stands that I kept from an old project.
Here 11,5 ltr Net.
Poort tuning 55Hz.
Anyone experience with this driver?
Hereby the first concept.
Couple of weeks ago I bought this nice looking TB drivers.
My plan is to put them into a simple BR cabinet.
I Also like to reuse my old Stands that I kept from an old project.
Here 11,5 ltr Net.
Poort tuning 55Hz.
Anyone experience with this driver?
Hereby the first concept.
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I don't think you can tune that driver that low, it will be a one not bass that runs out of xmax very fast (on low volume). The cabinet is also to large for a good tuning. Better use a smaller cabinet tuned higher like a 6L tuned to 70Hz. And if you need more bass, add a sub and cross higher (arround 90Hz at least).
Hi Waxx this was my starting point, also 11,5 liter: https://www.diyaudio.com/community/...the-tang-band-w4-1337sdf.273140/#post-4299471
I also think 11.5 liter is too much ... ??
I also think 11.5 liter is too much ... ??
that is a design with a filter to boos the bass. And it's not something i would do actually. This driver is a 4" fullrange with limited xmax, so it will never give real deep bass except in a TL type (TABAQ) maybe.
They certainly are ugly alignments, the kind you see when people ar etrying to get more bass out of a driver than it is really capablke of. Quanity over quality.
The general rule i use is that the first derivative of the FR graph should not pass thru zero more than once.
dave
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FWIW, the 'classic' BR alignment is Vas/1.44 tuned to Fs, which yields 30 W peak power down to ~66 Hz with a 2" dia. x 10.16" vent using published specs.
I just bought the drawing and filter design from the SoundBlab website.
Very good documentated!
Nice speaker!
Very good documentated!
Nice speaker!
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I have. 😉 No plot posted above, but 3.9 litres to 70Hz isn't too bad if you're near boundaries, & assuming 1/2ohm series R for wire loop, connection resistance etc. Otherwise, 4.2litres to 74Hz isn't too bad either if you want a little less damping to the alignment. Limited power-handling in all cases of course, with the expected slight edge to the former, but inevitable given the driver size & limited travel.
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What does the curve of the TL look like?
I like to have a little more bass out of this small speaker.
And not playing very loud.
I'd need to know the dimensions / geometry of the line and the damping used -since you say you purchased the plans though, I assume they can't be distributed, so there's no way I can check its alignment without buying them myself. However, from a very quick look, it seems to be a fairly simple [near] end-loaded type; it's probably tuned below Fs, but I suspect it will be fairly well-damped.
Dear Scottmoose I can not share the details of the TL.
Hereby on real scale the BR vs TL.
BR = approx. 7 liter.
The TL has also a filter with 3 parts.
Edit: in the YT movies above you can see the building process and damping inside.
Hereby on real scale the BR vs TL.
BR = approx. 7 liter.
The TL has also a filter with 3 parts.
Edit: in the YT movies above you can see the building process and damping inside.
Attachments
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You sound a little bit negative 😉.
Can you let us see how it looks like?
Otherwise your reaction is worthless I think.
Edit: I have the curve 😉.
Can you let us see how it looks like?
Otherwise your reaction is worthless I think.
Edit: I have the curve 😉.
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