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Multi-Way Conventional loudspeakers with crossovers

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Old 27th May 2018, 05:11 PM   #2511
arjanm is offline arjanm  Netherlands
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Quote:
Originally Posted by chops View Post
What exactly were the results of that particular setup? What did you not like about it?
the result off 4 alphas15 per side gave me some more spl and a little more low end punch but also some ugly resonances i could not get rid off with eq
aldo i did not used a computer based crossover /filter .but used a dcx2496
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Old 27th May 2018, 05:15 PM   #2512
arjanm is offline arjanm  Netherlands
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Originally Posted by chops View Post
Here's a quick pic of my temporary OB setup, just to break in the new Audio Nirvana Super 12's which are playing fullrange. Running a single Eminence Acoustinator N2012 Neo woofer per side to provide bass below 200 Hz, and they do extremely well in doing so, extending deep into the mid 30's.

Running a dbx Driverack Venu 360 for crossover duty only, 200 Hz @ 24 dB on the N2012 woofers. The AN Super 12's are getting a fullrange signal. Each OB is being vertically bi-amped by the Carver M-500t MkII amps.

The final OB will be very similar to the P.A.P. Quintet15, only using the N2012 woofers (four per channel) and the AN Super 12. Just ordered the last pair of N2012 woofers from Danny Richie last night. I can't wait to hear the final system results. These temp OB's already sound amazing!

Click the image to open in full size.

nice !

and i will look at the Audio Nirvana Super 12's for midrange
was thinking to try emenince beta lta12 ..cost not much money for two of
them
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Old 16th June 2018, 01:22 PM   #2513
JonasKarud is offline JonasKarud  Sweden
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Here´s my latest dipole. It has a very good Wife Acceptance Factor as it is only
700x400 mm in size!

Sensitivity is around 91 dB/2.82 volt, crossover at 500 Hz

The whole surface of the Diy (expensive) mid/high planar unit works up to 2000 Hz, there after it´s only the middle tracks working to 30 Khz. The outer half of these middle tracks gets shortened at 4 Khz for better dispersion. If You want even better sound, you can stack those planars up to the ceiling!

The base is a Eminence Delta lite 2515, with 99 Db sensitivity. I had to drive it via a step up transformer to keep up with the sensitivity of the planar unit.

Sound degrading things as resistors and Dsp:s are forbidden in my world!
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Old 16th June 2018, 02:17 PM   #2514
sfdoddsy is offline sfdoddsy  New Zealand
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An update of a build I posted a while back.

It's a wall-mounted OB using the Seas Excel C18 coax, with sealed boundary woofers using the Peerless SLS10.

Similar concept to the Lyngdorf DP1.

Almost invisible, but sounds at least as good as my old Orions (at lowish levels).
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Old 16th June 2018, 02:28 PM   #2515
ewollowe is offline ewollowe  Australia
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Crossover points?
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Old 16th June 2018, 11:12 PM   #2516
sfdoddsy is offline sfdoddsy  New Zealand
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The coax crosses over to woofers at 300Hz.

Passive xover on the coax, active MiniDSP to the woofers which also EQ the speaker.
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Old 17th June 2018, 02:16 AM   #2517
ewollowe is offline ewollowe  Australia
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Interesting design mate. Did you say you have a thread on the build?
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Last edited by ewollowe; 17th June 2018 at 02:26 AM.
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Old 17th June 2018, 03:36 AM   #2518
head1962 is offline head1962  Switzerland
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Did you make the planar speakers yourself?
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Old 17th June 2018, 04:05 AM   #2519
MITsound is offline MITsound  Canada
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Quote:
Originally Posted by sfdoddsy View Post
The coax crosses over to woofers at 300Hz.

Passive xover on the coax, active MiniDSP to the woofers which also EQ the speaker.
I use analog active 4th order crossovers, with built in phase alignment, and some boost capabilities at 50hz, 10000hz, and switchable horn eq, phase switching for each channel, etc.

Do you think there's an advantage for me to use dsp?
It would add a conversion step, since I still listen to a lot of vinyl.
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Old 18th June 2018, 01:54 PM   #2520
JonasKarud is offline JonasKarud  Sweden
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Quote:
Originally Posted by head1962 View Post
Did you make the planar speakers yourself?
Yes, it has been a 3-year project, trying different ways of manufacturing the membrane, different magnet configurations, number of tracks and many other parameters. The present planar beats all of my prior work to smithereens, including my 2 meter, Metglas-transformer driven, true ribbon.

The membrane weighs less than one gram and third-harmonic distortion is around 0.1 % from 500 Hz all the way up to 30 kHz.

It would be fun to share how to build them, but the membrane requires too much specialized equipment and materials for DIY:ing.

The planar frame is simple to build, using a 3D printer, some neodym magnets and a metal saw.
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