My clone of the Emerald Physics CS2:
That art thing or acoustic panel or whatever you call it, is that something you made yourself?
Regards
My latest "makeshift" OB´s: EV SP12B woofers + EV 1823M drivers with unknown horns + unknown exponential tweeters on 40x23" plywood baffles. The most expensive part was the wood...
Active XO @ 900Hz between the woofers and the mid horns + single cap in series with the tweeters. With a bit of EQ they don´t sound too bad...
Active XO @ 900Hz between the woofers and the mid horns + single cap in series with the tweeters. With a bit of EQ they don´t sound too bad...
Attachments
Narrow Open Baffle
I am consider building a narrow open baffle (about 6" wide) MTM with wings that slant back @ 45 degrees to the main baffle and would be as tall as same. I am planning on Seas 11FGX (2) with a Dynaudio Esotech D260 in between. What is the group thought about such an arrangement
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I am consider building a narrow open baffle (about 6" wide) MTM with wings that slant back @ 45 degrees to the main baffle and would be as tall as same. I am planning on Seas 11FGX (2) with a Dynaudio Esotech D260 in between. What is the group thought about such an arrangement
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Is the XO Active or Passive?
Beautiful. Unfortunately OBs require a lot of breathing room around them.
Very neat. What are the dimensions? They look very wide.
Narrow Baffles
Actually the main baffles are 6 inches wide by about 24 inches tall. On each side of the main baffle is a wing that extends back about 6 inches at a 45 degree angle to the main baffle. I tried to draw it but the computer changed what I drew to nonsense. This MTM unit will sit on top of a woofer Unit (10inch) powered by a plate amp. The mid-tweeter unit will be passively crossed at 2500 Hz and equalized by an octave equalizer. Eventually I want to change the tweeter to a ribbon (Fountek NeoCD3).
Actually the main baffles are 6 inches wide by about 24 inches tall. On each side of the main baffle is a wing that extends back about 6 inches at a 45 degree angle to the main baffle. I tried to draw it but the computer changed what I drew to nonsense. This MTM unit will sit on top of a woofer Unit (10inch) powered by a plate amp. The mid-tweeter unit will be passively crossed at 2500 Hz and equalized by an octave equalizer. Eventually I want to change the tweeter to a ribbon (Fountek NeoCD3).
navin, active through Behringer DCX2496 but I think it would not be too difficult to drive them passive. Preliminar simulations I made say it should be possible to use 200 Hz and 3 kHz for LR 12 dB/oct filters with good result. But as I EQ the 6ND430 a little between 200 and 300 Hz to compensate for baffle loading loss one might have to use more bafflewidth.
/Erling
/Erling
Very original OB design:
http://www.diyaudio.com/forums/multi-way/171779-my-current-ob-experiment.html
http://www.diyaudio.com/forums/multi-way/171779-my-current-ob-experiment.html
From the NaO family, by John K.
NaO Note Preview
Impressive measurements
NaO Note Preview
An externally hosted image should be here but it was not working when we last tested it.
Impressive measurements
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Off topic: I painted the panels which I ordered from VM Acoustics here in Denmark. The panels are named 'VM Diffusor'
John Kreskovsky shows really breathtaking measurements with these speakers
The new SS 15M/4624G00 might have been a interesting alternative to the 4" mid though. Going "quasi nude" with the 5.25" would possibly not have made much of a difference to the 4" in current baffle.
Michael
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http://www.diyaudio.com/forums/multi-way/157665-question-geddes-john-k-3.html
Looks very interesting. Not sure if this is the Nao Note. Footprint looks like the ESLs. A departure from his philosophy of narrow baffles.
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100db at 30hz.. I can live with that
EDIT:
More info!
New open baffle - Techtalk at Parts-Express.com
http://www.musicanddesign.com/pubimages/NaO_DW_back.JPG
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This speaker in what I call the NaO DW, DW after Dayton Wright, which I owned years ago and liked the style. However the speaker is being modified. While it works are advertised, I decided I could make it a better speaker by making the baffle for the mid narrower and going back to a hybrid, biamped design. It was always a "parts bin" speaker, not intended for anything but for me to listen to. The modified speaker will still look the same but above the woofers the baffle will narrow to about 13".
This was just an experiment as I had all the parts so figured....what the hell. I've been a horn guy for 30 years.....not any longer.
George and I spent yesterday building a pair of Open Baffle, Line Array, EconoWaves. He got here at 11:00 and left at around 5:00. I think we made good progress.
The drivers are PE 69 cent NSB close outs.
The horns are JBL 6"x6" wave guides with Selenium D210T (JBL wave guide part 364914-001)
The cross overs are stock eWave - http://www.audiokarma.org/forums/att...1&d=1242968714
They ar 48" tall and 24" wide with the driver centers 6" from the edge and (top to bottom) centered on the baffle.
They are now both running in the garage and sound fantastic.
George and I spent yesterday building a pair of Open Baffle, Line Array, EconoWaves. He got here at 11:00 and left at around 5:00. I think we made good progress.
The drivers are PE 69 cent NSB close outs.
The horns are JBL 6"x6" wave guides with Selenium D210T (JBL wave guide part 364914-001)
The cross overs are stock eWave - http://www.audiokarma.org/forums/att...1&d=1242968714
They ar 48" tall and 24" wide with the driver centers 6" from the edge and (top to bottom) centered on the baffle.
They are now both running in the garage and sound fantastic.
The Instrument 3 Dipolar Loudspeaker
Home Theater photos and Home Theater Pictures - Home theater idea Picture
This looks great and acoustically correct !
Reminds me of SL's earlier dipole the L-07
Polar response
Home Theater photos and Home Theater Pictures - Home theater idea Picture
This looks great and acoustically correct !
An externally hosted image should be here but it was not working when we last tested it.
Reminds me of SL's earlier dipole the L-07
Polar response
Open Baffle speakers with Fostex and Tone Tubby
Hi,
This design is inspired by a similar design I saw on diyaudio featuring Lowther / Tone Tubby.
Running off a Behringer Digital Crossover.
Cheers.
Hi,
This design is inspired by a similar design I saw on diyaudio featuring Lowther / Tone Tubby.
Running off a Behringer Digital Crossover.
Cheers.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
If I may contribute to the "Ultimate OB gallery", here is the link to my biggest OB project:
Audio Pages: Big open baffle speakers
It no longer exists, but it was fun. I built lots of OB speakers since then, mostly mix of OB mids and heights, but closed box woofers. None of my projects were "ultimate" in any sense, just for fun.
ed
Audio Pages: Big open baffle speakers
It no longer exists, but it was fun. I built lots of OB speakers since then, mostly mix of OB mids and heights, but closed box woofers. None of my projects were "ultimate" in any sense, just for fun.
ed
My clone of the Emerald Physics CS2:
Very Nice!
...maybe a stupid question: What kind of horn/waveguide is that?
interesting stuff, you should put some picture directly in this gallery.
have you compared the lowther against the fostex+neo directly? do the two way achieve that lifefullness lowther has?
I am not sure if I follow your question...can you be more specific? What do you mean by "lifefullnes"?
I lived with Lowthers more than 10 years and never considered them lifefull. Well extended to heights, yes, but not the bottom. Efficient? Yes, but not flat and balanced. Do you mean "dynamic"? Yes, all highly efficient speakers feel dynamic in contrary to low efficiency drivers which might feel a little lifeless.
Are you asking if the 2-way can be dynamic? You bet. Yes, I compared side by side and the fostex/neo combo is win-win in every category.
Hi adason - I checked out your work at Audio Pages: Big open baffle speakers
Amazing! You do keep yourself busy doing the speaker thing (lot's of amps too). Great stuff!
I have been considering something similar to your latest OB design with the Fostex and B&G Neo3 but I am a bit uneasy about the narrow vertical dispersion of the Neo3. Perhaps with a good FR in use this is not as important vs. conventional design using a traditional mid-range driver. Would you please share your experience with regards to the vertical dispersion of the Neo3? TIA
Amazing! You do keep yourself busy doing the speaker thing (lot's of amps too). Great stuff!
I have been considering something similar to your latest OB design with the Fostex and B&G Neo3 but I am a bit uneasy about the narrow vertical dispersion of the Neo3. Perhaps with a good FR in use this is not as important vs. conventional design using a traditional mid-range driver. Would you please share your experience with regards to the vertical dispersion of the Neo3? TIA