Hello
I am fooling around with building an active high efficient speaker.
After some advice I started out with a two way using JBL 2226h and B&C de250.
I then got the idea that it should be a three way speaker hoping to further improve the sound.
Inspired by Klipsch Hersey etc. I bought a Selenium d250x and a HC 23-25 horn (which I suspect was a mistake and I am experimenting with making a Tractrix horn).
But I no matter what I do I just can't get it to sound right.
After thinking a bit and google'ng a lot I have come to the conclusion that maybe it is a mistake to use a midrange horn+driver and instead I should use a "normal" driver - but which?
I read that an Eminence alpha 8a could be a possibility but it is not exactly expensive and I have used a lot of time and money on cheap and awful sounding drivers - so I need your help...
Am I going in the right direction?
If so, I need some help choosing a driver 🙂
I am fooling around with building an active high efficient speaker.
After some advice I started out with a two way using JBL 2226h and B&C de250.
I then got the idea that it should be a three way speaker hoping to further improve the sound.
Inspired by Klipsch Hersey etc. I bought a Selenium d250x and a HC 23-25 horn (which I suspect was a mistake and I am experimenting with making a Tractrix horn).
But I no matter what I do I just can't get it to sound right.
After thinking a bit and google'ng a lot I have come to the conclusion that maybe it is a mistake to use a midrange horn+driver and instead I should use a "normal" driver - but which?
I read that an Eminence alpha 8a could be a possibility but it is not exactly expensive and I have used a lot of time and money on cheap and awful sounding drivers - so I need your help...
Am I going in the right direction?
If so, I need some help choosing a driver 🙂
If you have problem utilizing a horn midrange which is a natural bypass device and it can work with 1st order low pass filter a cone driver will be even more problematic to implement. 3 ways with a cone midrange are not easy to design even for experienced designers.
A step up from the Alpha-8A is the Delta Pro-8A.
I have no idea how well it would integrate with your other drivers or how easy it would be to make it do so!
DELTA PRO-8A - Loudspeakers | Eminence Speaker
I am not sure I understand what you are trying to tell me...
As far as I know the problem I have is not integrating the midrange driver and get a nice spl response curve. Actually I find I have gotten more details in the midrange, but the sound is flat without any energy in voices.
How about 18Sound 10NDA610? 10", so depending on your xo point to the DE250 directivity could be an issue. But it's designed as midrange and 102 dB/W sensitivity. Not cheap.
Among 8": B&C 8PE21 @ 98 dB/W, PHL 2520 @ 100dB, P-Audio SN8-250N @ 98dB, Audax HM210Z10 @ 97dB
Among 8": B&C 8PE21 @ 98 dB/W, PHL 2520 @ 100dB, P-Audio SN8-250N @ 98dB, Audax HM210Z10 @ 97dB
What are you using as a xover?
I used exactly the same LF and HF/WG with a JBL2123H and a modified DCX2496. Loverly.
I used exactly the same LF and HF/WG with a JBL2123H and a modified DCX2496. Loverly.
How about this guy. Has a 99db/watt efficiency. Should blend right in.
FaitalPRO M5N8-80 5" Neodymium Professional Midrange 8 Ohm
Oon
FaitalPRO M5N8-80 5" Neodymium Professional Midrange 8 Ohm
Oon
I've heard the Beta-8A used in a 3 way system and it was very clean. easy to crossover, too. Choose a suitable high pass; then just a small inductor is needed to make the Beta-8a flat out to ~5K. Bring in a horn or ribbon tweeter there.
Have also heard the Beta-12LTA used as a midrange. Very surprisingly good. But the low pass filter was very complex. Woofers were twin 18"
Have also heard the Beta-12LTA used as a midrange. Very surprisingly good. But the low pass filter was very complex. Woofers were twin 18"
I was never a fan of Wayne Perlham's Pi speakers but many people like them . The components that you have would match Pi 4. Crossover diagram seems to be available online.
Hands down B&C 8PE21......the smooth response of this driver can compete with any hifi midrange yet handles tons of power without power compression.
8PE21 *looks* like a PHL. Sounds as good as one too.
And if you compare them very carefully, the Beta 8 has exactly the same cone as the 8PE21. Different dust cap, and the B&C does have an advanced motor. The Beta 8 is just as free of nasty in-band energy storage issues as the B&C - just lower sensitivity and not as extended on the top end. The Eminence motor is “good enough” for most uses if you don’t need the extra 5dB/W and the higher mass roll-off point you get with the stronger motor. And if you do need 70 or 80 Hz low end extension, the Beta 8 has that covered.
And if you compare them very carefully, the Beta 8 has exactly the same cone as the 8PE21. Different dust cap, and the B&C does have an advanced motor. The Beta 8 is just as free of nasty in-band energy storage issues as the B&C - just lower sensitivity and not as extended on the top end. The Eminence motor is “good enough” for most uses if you don’t need the extra 5dB/W and the higher mass roll-off point you get with the stronger motor. And if you do need 70 or 80 Hz low end extension, the Beta 8 has that covered.
I am searching for a driver into the RCF H6000 horn - the one dedicated to it is kind of expensive. Would the Beta 8 work, too? In the worst case, I will go for the RCF. It will be for home high efficiency horn system and later maybe for a compact PA box.
I just ordered two 8PE21 for midbass horns, but I will definitely try them also in the RCF horn, since the midbass horn is not built yet🙂
I just ordered two 8PE21 for midbass horns, but I will definitely try them also in the RCF horn, since the midbass horn is not built yet🙂
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