Frontloaded bas horn. lowcost. beyma sm115n
2pi halfspace. 103dB 1Wmtr
Inside size 40X50X120cm.
2pi halfspace. 103dB 1Wmtr
Inside size 40X50X120cm.
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Eminence kappapro15A wow what a great 15"!
2pi halfspace very lineair and 105dB 1Wmtr
1pi 109dB/1Wmtr
http://www.eminence.com/pdf/Kappa_Pro_15A.pdf
2pi halfspace very lineair and 105dB 1Wmtr
1pi 109dB/1Wmtr
http://www.eminence.com/pdf/Kappa_Pro_15A.pdf
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that sure is a mighty big midrange 😀
try this one
http://www.faitalpro.com/products/files/12FH520/8/12FH520_datasheet_8.pdf
or this
http://www.faitalpro.com/products/files/12HP1010/8/12HP1010_datasheet_8.pdf
try this one
http://www.faitalpro.com/products/files/12FH520/8/12FH520_datasheet_8.pdf
or this
http://www.faitalpro.com/products/files/12HP1010/8/12HP1010_datasheet_8.pdf
To reduce volume of the box here with short midrange horn on the eminence kappapro15A.
system volume 124liter.
Spl for 2pi and second 1pi.
system volume 124liter.
Spl for 2pi and second 1pi.
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A big midrange,
Thats right Charly chile can use this as a midrange on the low power tube amplifier, so he has the entire focal range through a horn and he than uses the 20W to power the subwoofer.
Thats right Charly chile can use this as a midrange on the low power tube amplifier, so he has the entire focal range through a horn and he than uses the 20W to power the subwoofer.
the kappapro is a nice driver to play with in simulation, now made a simple conical horn on it with bas-reflex loading.
to make some thing like these.
SPL output for 2pi and 1pi placement 1pi. And reasonable size 128 liter 4,5 cubic feet.
Combined response port next to horn mouth.
to make some thing like these.
An externally hosted image should be here but it was not working when we last tested it.
SPL output for 2pi and 1pi placement 1pi. And reasonable size 128 liter 4,5 cubic feet.
Combined response port next to horn mouth.
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why vented BR if it still needs a sub ?
wouldn't closed/apperiodic make integration with a sub easier ?
wouldn't closed/apperiodic make integration with a sub easier ?
To increase efficiency and bandwith. 105 dB 1wmtr 1 driver is very nice. 20% efficiency if i am not mistaken. A hifi speaker can not even make a 0,5% efficiency.
It wil make a perfect high efficient 2 way with a midhigh horn 500Hz-20kHz where time alignment is right.
It is not to bulky big can look very good with a tractrix horn on top.
Now only a tapped sub horn is needed.
I believe I already showed that solution.
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You can make this in 1/3 of that size.
Altec A7 is 97db 1Wmtr. 3% efficiency huge difference With the 20% from the simulation.
Altec A7 is 97db 1Wmtr. 3% efficiency huge difference With the 20% from the simulation.
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It's a shame PHL never publish any graphs of their drivers. I mean, look at their datasheets layout they even have an empty place for the graph but they dont publish ! 😀
I think they have lost many DIYers buying their drivers because of this.
- Elias
Your right elias.
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nice, but at a cost
wasnt it his intention to use very small amps, or even small tube amps ?
efficiency and sensitivity is ofcourse nice for small amps
but how much do you really need
in any case, if the goal is high SPL and playing very loud I see no point in using small amps
so I would say for the smaller amps a more 'moderate' SPL ought to be ok
or in short
even a big high efficient speaker system can still be a heavy load for a small tube amp, right ?
(if the spec is to trust)- Status
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