Try adding some felt to the baffle, you'll be surprised at how it reduces reflections coming of the baffle.
Even with this small baffle detail improved with the felt added. This is automotive underfelt and I covered it with speaker cloth.
My take at open baffles with the Philips 9710AM/01 (the Philips AD5201A "Bombardon" woofer sits in a sealed enclosure). In practice I stuff a pillow at the back of the open baffle.
The loudspeakers have 800 Ohm impedance, so are meant for OTL tube amplifiers. I use them with bi-amping and an active tube crossover (400 Hz/18 dB per octave).
The loudspeakers have 800 Ohm impedance, so are meant for OTL tube amplifiers. I use them with bi-amping and an active tube crossover (400 Hz/18 dB per octave).
Hello,
I am looking to have small OB for my desk and I have in mind something simple like that.
I have tweeters Raal 70-20xr I can use for this project.
For the mid/bass driver, I have in mind Supravox 215 signature
https://www.supravox.fr/produit/215-signature-haut-parleur-grave-medium-etendu-35w-94db-8ω/
Do you think I will be able to have reasonable bass output from these with this kind of small baffle ? (like 10inch wide x 18 inch tall) ?
** I will listen them at 1.1m from them and I am able to put EQ to boost the bottom.
(here my simulation of the look)
I am looking to have small OB for my desk and I have in mind something simple like that.
I have tweeters Raal 70-20xr I can use for this project.
For the mid/bass driver, I have in mind Supravox 215 signature
https://www.supravox.fr/produit/215-signature-haut-parleur-grave-medium-etendu-35w-94db-8ω/
Do you think I will be able to have reasonable bass output from these with this kind of small baffle ? (like 10inch wide x 18 inch tall) ?
** I will listen them at 1.1m from them and I am able to put EQ to boost the bottom.
(here my simulation of the look)
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Here my mesurement at the listening position.
Green line = AE dipole 15
Red line = siare NDH15-3
Baffle has 18inch wide (no wings). Room have 9.5x12 feets and were at 1.1m from the back wall and I was at 8.5 feets away.
With the room gain, I was flat down to 20hz.
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Bass SPL with the 215 can be expected to be anaemic on that OB. The Xmax will bottom out so EQ won't save it:
If you put a ripole/SLOB under it you will get the preferential forward bass SPL in the near field. Could XO @ 150Hz. Should be able to squeeze a 3-way into a 10x20" baffle.
Hornresp models OBs including ripoles.
I'm on "same boat" like kazap.
Supravox 215, or even 215 RTF 64 are a great drivers.If I have a opportunity, I will use them with some form of slob, similar like this:
https://zimmer64.wordpress.com/2015/11/08/bg-neo3-betsy-eminence-alpha-15-a-mk-iii/
Supravox drivers deserve this, not desktop use (IMHO
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I tried 4 pcs 18 dayton umax without baffle sub, measuredly it is a killer and it plays loud, but it is not the dipole sound I like, not the weightless quick sound
have tried 3-4 solutions with 18 inches, always fall back to 15´ as the best choice for dipole bass
have tried 3-4 solutions with 18 inches, always fall back to 15´ as the best choice for dipole bass
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With all your experience with dipole bass, which driver and in what configuration have you enjoyed bass the most?
I use something similar, but woofers facing out with magnets inside. I put cover over sides and top. Kind of like SL did with his H shaped baffles. It is still dipole but limits cancellation to some digree, and definitely helps. Bass exactly i want. So i would not give up on those, perhaps experiment with modifications.
I agree with Adason, anything that can add extra depth or width to the baffle to bring the cancellation frequency lower is helpful. I use a folded U-baffle. I think using bare drivers with no baffle of any sort is a lot of wasted “thrasing” of the air like an egg beater.
what do we really want with an´open baffle´ bass?
we cil free ourselves from box resonances, and the delays it gives in the rhyme,
we have to choose elements, easily driven, they are fast, if you can not do with 1 or 2 then you have to buy 4 pieces, it will sound much faster, better and more punchy than 4 pcs heavy freckle 18 inches