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Multi-Way Conventional loudspeakers with crossovers

Simple high efficiency two-way
Simple high efficiency two-way
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Old 19th February 2019, 05:51 PM   #11
freddi is offline freddi  United States
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Simple high efficiency two-way
one could make a Druid (or whatever) style cabinet with Eminence's current B102 plus a Morel Cat 37-8 dome with only a 5.6uF cap as the crossover. It would be moderate in efficiency. Box/pipe volume would probably best be somewhat larger than the Druid and around 1.7 - 2 cubic feet

Diuid sized pipe with only lining and old spec Eminence B102 - it would be somewhat smoother with light fill

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comparison of the orignal low Qts B102 to the present model:

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Old 19th February 2019, 06:02 PM   #12
chris661 is offline chris661  United Kingdom
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First-order filters are difficult. The drivers need a wide range where they can overlap and maintain power handling, avoid peaks in the frequency response, etc.

You can get something reasonable with a Faital Pro 10HX230 and a single component for each driver, although power handling is limited and the phase curves don't line up fantastically.
I found better results by going to 2nd order filters - more power handling, and better frequency response.

Sensitivity came in at about 97dB@1w.

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Old 19th February 2019, 06:10 PM   #13
moray james is offline moray james  Canada
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why not buy a Dynaco A25 or A35?
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Old 19th February 2019, 06:31 PM   #14
freddi is offline freddi  United States
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Simple high efficiency two-way
If you listen at what I consider moderate levels, with 5.6uF a Morel CAT378's dome can be seen moving

42 liter pipe w. B102 - a bit bigger wouldn't hurt - don't forget to think about the amp output impedance

a classic Dynaco A25/A40XL in good shape would be nice

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Last edited by freddi; 19th February 2019 at 06:38 PM.
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Old 19th February 2019, 06:41 PM   #15
adason is offline adason  United States
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Defo, ever considered good coaxial? Tannoy, or something cheaper, B&C...plenty coaxials to choose from. Pro speakers typically have higher efficiency.
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Old 19th February 2019, 07:47 PM   #16
Ugg10 is offline Ugg10  United Kingdom
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If you have deep pockets the Beyma pro coaxials, as identified by @adason, may do the job.

LOUDSPEAKER 12CXA400Fe 8 OH

This is a 12 which you can buy a pre built crossover (12db slope, 2nd order) for. Data sheet shows combined response with the crossover
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Old 19th February 2019, 08:36 PM   #17
ScottG is offline ScottG  United States
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Quote:
Originally Posted by Defo View Post

Maybe a Dayton PM220 wideband woofer with a Dayton AMTPRO-4 or something?

Any suggestions?

-baffle-step loss is going to kill your eff. with that combo.



Yeah, a suggestion:

18Sound | ND1480A

XT1464

The Raptor ... a 10" MTM


and at about 20" wide with a volume around 3 cubic feet (sealed):

15W500


Target filter should be similar to the Spica TC 60 (though an octave lower):

Spica TC-60 loudspeaker Measurements | Stereophile.com


-probably a box-on-stand aesthetic similar to TonyG's (though not vented), and with a bit of backward "tilt" to aim the midbass to the listener, perhaps more like the Avantgarde Zero (but without the tweeter):
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Last edited by ScottG; 19th February 2019 at 08:52 PM.
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Old 19th February 2019, 08:47 PM   #18
freddi is offline freddi  United States
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Simple high efficiency two-way
that's a cool 18Sound woofer - a 450uF series cap (assuming low impedance drive) should make it go flat- lower. I'm not sure of the impact that might have on sound quality.
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Old 20th February 2019, 08:50 AM   #19
Defo is offline Defo  Norway
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Quote:
Originally Posted by freddi View Post
one could make a Druid (or whatever) style cabinet with Eminence's current B102 plus a Morel Cat 37-8 dome with only a 5.6uF cap as the crossover
Very interesting to see the differences between the old one and the new here!

Quote:
Originally Posted by moray james View Post
why not buy a Dynaco A25 or A35?
You mean buy and forget, or pulling some drivers from it?

Quote:
Originally Posted by freddi View Post
If you listen at what I consider moderate levels, with 5.6uF a Morel CAT378's dome can be seen moving
Very nice curve with the cap on that Morel! How does it compare to the Seas DXT I wonder?

Quote:
Originally Posted by adason View Post
Defo, ever considered good coaxial? Tannoy, or something cheaper, B&C...plenty coaxials to choose from. Pro speakers typically have higher efficiency.
Quote:
Originally Posted by Ugg10 View Post
If you have deep pockets the Beyma pro coaxials, as identified by @adason, may do the job
Quote:
Originally Posted by chris661 View Post
You can get something reasonable with a Faital Pro 10HX230
Chris
I've been looking at the DIY Sound Group Volt 10 coax. Seems pretty nice for the money, and I get a free lunch with a finished crossover.

Those Faital coaxials look quite nice tho. Even if the curves are quite smoothed and low resolution. Couldn't find any unofficial measurements of them.
Are there any finished projects / crossovers for one of these coaxes anywhere I wonder? Preferably one that includes BSC.

Quote:
Originally Posted by ScottG View Post
Too large a system for me unfortunately

I was actually thinking of building a TV-bench with integrated speakers on each side. Something like this:
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Last edited by Defo; 20th February 2019 at 09:16 AM.
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Old 20th February 2019, 10:19 AM   #20
frankmalz is offline frankmalz  Germany
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Have you seen the pispeakers?

http://www.pispeakers.com/Prices.html

One,two and two towers have very simple filters
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