SJ; i have read Linkwitz site and pretty much everything else written on OBs online
IMO it goes like this
felt baffle (best of both worlds) > no baffle > small baffle > ...... > medium-large circular baffle (worst possible)
this is getting similar to the discussion in this thread aiming at "a true dipole" top to bottom; (really an academic discussion to me, void of constraints to do with any real drivers and baffles).
In Pursuit of a 20-20k Dipole Loudspeaker
In Pursuit of a 20-20k Dipole Loudspeaker
Agreed, last I heard from Charlie he was becoming convinced dipole down to 20Hz was unnecessary and was heading off to experiment with sealed sub. 
I think the other end of the scale is interesting too, how late reflections at high frequency can relate to the size of the perceived space..... best to play and see what you like..
I think the other end of the scale is interesting too, how late reflections at high frequency can relate to the size of the perceived space..... best to play and see what you like..
my LX521 will also have a sealed bass (down firing). I also intend to implement a passive Xover to the tweeter section so the speakers could be bi-amped. It will probably be the only LX521 driven by a tube amp on top :
D150 monster amp and funny tooobz
:D150 monster amp and funny tooobz
Return to Horns
I've had my fun with the Van Halen planar dynamic hybrids, but was missing the transient snap of my horns.
Plundered my Onken cabinets, and am trying no baffle for now, as the Van Halens can be modded for a slob sub.
So far so good; the 2 Celestions are quite good without a baffle, as long as they're close together.
This pic was from this morning, prior to me mucking things up with wire.
I may post if I figure a way to do that neatly.
Maybe the easiest build I've ever done, and I think the no stain no oil no finish gets the steampunkish mancavd look I was aiming for.
Loving the exaggerated dynamics and colourations. The BG stuff is great, but horns are the fun date.
I've had my fun with the Van Halen planar dynamic hybrids, but was missing the transient snap of my horns.
Plundered my Onken cabinets, and am trying no baffle for now, as the Van Halens can be modded for a slob sub.
So far so good; the 2 Celestions are quite good without a baffle, as long as they're close together.
This pic was from this morning, prior to me mucking things up with wire.
I may post if I figure a way to do that neatly.
Maybe the easiest build I've ever done, and I think the no stain no oil no finish gets the steampunkish mancavd look I was aiming for.
Loving the exaggerated dynamics and colourations. The BG stuff is great, but horns are the fun date.
Attachments
-yes, but couldn't you have both?
I did put the Neo 10s in a homemade horn once, maybe a year ago or so.
It didn't improve them much.
My horn was much less elaborate.
It was about 12" deep, and went from 5" wide, to 3" wide, then flared to 23" wide.The intent was to use compression to load the membrane, and bolster the 300 to 1000hz range.
Don't allow my lack of skill in designing a horn deter you.
Hola!
Queria saber como suenan los Beyma 18 LX 60 V2?
Estoy elaborando un proyecto Open Baffle y reconozco me gusta mucho el 18 lx 60 v2. Tengo la oportunidad de comprarlo. Me gustaria saber mas sobre este woofer. Me podrias dar detalles por favor?
Muchas Gracias
Victor
They are now about 4 feet from the front wall, and centre of woofers is about 36" from the sidewalls.
They are very very clean through the vocal range.
I'd hoped they would reach down to a subwoofer, but subjectively, that's unnecessary, even for movies.
I'm guessing it's better boundary reinforcement, being so close to the floor, some gain from a 30" vertical cylindrical wave launch, and the 1525e natural 40 hertz or so bass spike.
Cleaner sound by far, than my planar hybrid Van Halens. They had only a 19mm thick baffle, which I now think added lots of stored energy resonances, with each having 3 1525e drivers in it.
I'm very surprised the bass is adequate.
Hello again!
I wanted to know how the Beyma 18 LX 60 V2 sounds?
I'm working on an Open Baffle project and I really like the 18 lx 60 v2. I have the opportunity to buy it. I would like to know more about this woofer. (Fs=35Hz; Qes=0,5; Qts=0,48; BL=21,8N/A; Xmax=9mm; Sensivity=98dB 1W/1m Could you give me details and your opinion please?
Thank you so much
Victor
I wanted to know how the Beyma 18 LX 60 V2 sounds?
I'm working on an Open Baffle project and I really like the 18 lx 60 v2. I have the opportunity to buy it. I would like to know more about this woofer. (Fs=35Hz; Qes=0,5; Qts=0,48; BL=21,8N/A; Xmax=9mm; Sensivity=98dB 1W/1m
Could you give me details and your opinion please? Thank you so much
Victor