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Do you know this Project from Beyma ?

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bitzo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bitzo Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2009 at 4:09pm
thanks for your sim. This is a good and compact sub but go too low for my purpose....
I have some play with hr around rlh concept and ported wbin design...


3 of them sit perfectly on 4 supers.

cheers, bitzo

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Ibex View Drop Down
Young Croc
Young Croc


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ibex Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2009 at 4:34pm
Looks nice, bitzo!
So your concept is a vented frontloaded horn?
I also thought about such a design like the C4 Sub... (original C4 also goes too low)
What outer dimensions will your cab have?
greez
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bitzo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bitzo Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2009 at 4:43pm

It's a vented rear loaded horn.
check out. I named it Tie Fighter, external dimension about 80x60x50


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Ibex View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ibex Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2009 at 5:49pm
Interesting design!
Looks like an compound horn: Small RLH with a planar waveguide in the front of the driver...

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bitzo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bitzo Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2009 at 6:44pm
I simmed it like a vented horn not like a compound....more stuff to play with hr ;)
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Ibex View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ibex Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2009 at 7:04pm
Originally posted by bitzo bitzo wrote:

I simmed it like a vented horn not like a compound....more stuff to play with hr ;)


Would be interesting, if you will get the same results...
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KenTech View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote KenTech Quote  Post ReplyReply Direct Link To This Post Posted: 04 July 2009 at 3:45am
will 2 x SB15-1 subs go as low as a BPH Loaded with C18ELf from Paudio ? Will this bins, both of them, have higher SPL  ? Maybe higher SPL on Kick zone ?
it's 2 x SB15-1 loaded with SN15LF, or SD15 from Paudio versus 1 x Es18 BPH Loaded With C18ELf from Paudio. What do you think ?


Edited by KenTech - 04 July 2009 at 3:57am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote KenTech Quote  Post ReplyReply Direct Link To This Post Posted: 04 July 2009 at 4:06am
What about 1 x SB18-1 Loaded With Paudio C18ELf Versus Es18BPH Loaded with the same driver, C18ELf from Paudio.
wich one goes lower? wich one has higher SPL ? Where it has higher SPL ?
Thanx
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Ibex View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ibex Quote  Post ReplyReply Direct Link To This Post Posted: 04 July 2009 at 9:46am
Originally posted by KenTech KenTech wrote:

What about 1 x SB18-1 Loaded With Paudio C18ELf Versus Es18BPH Loaded with the same driver, C18ELf from Paudio.
wich one goes lower? wich one has higher SPL ? Where it has higher SPL ?
Thanx

Hi KenTech!
Do you mean the Paudio C18-650 EL?
cheers
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KenTech View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote KenTech Quote  Post ReplyReply Direct Link To This Post Posted: 04 July 2009 at 1:42pm
Paudio C18ELF . It's from the new series. It's a lit bit, if not the same as C18-65o EL. The difference between this 2 drivers is not big.
So, what do you think ?

http://www.paudiothailand.com


Edited by KenTech - 04 July 2009 at 2:01pm
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Ibex View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ibex Quote  Post ReplyReply Direct Link To This Post Posted: 04 July 2009 at 3:56pm


Beyma SB18 vs. ES18-BPH - C-18ELF - SPL
black = SB18 - PAudio C-18ELF - 231 litre
grey = ES18-BPH - PAudio C-18ELF - 302 litre

Beyma SB15 2x - SN-15LF vs. ES18-BPH - C-18ELF - SPL
black = Beyma SB15 x2 - PAudio SN-15LF - 314 litre
grey = ES18-BPH - PAudio C-18ELF - 302 litre

Well, the RLBPH offer a marginal lower cut-off frequency, I think the big advantage would be in the kick-bass range. I would prefer the 2x SB15 cabs, better effiency and almost the same size as one ES18-BPH... no fear, the dip around 110Hz will not be as deep and the peaks will rise and fall snoother Wink
Although I would advise to make a prototype and compare both by listening! Till now I got no auditory impressions of these RLBPH designs. I only heard the father of RLBPH, the EV MTL-1X, before, and they realy rock your body, but unfortunately no direct comparison to other cabs or different designs.
cheers


Edited by Ibex - 05 July 2009 at 1:56pm
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Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ibex Quote  Post ReplyReply Direct Link To This Post Posted: 04 July 2009 at 4:11pm
Handed in later, the comparison of the both RLBPH designs with the original Beyma drivers to the PAudio ones...

Beyma SB15 - SN-15LF vs. 15P1200Nd - SPL
black = Beyma SB15 - PAudio SN-15LF
grey - Beyma SB15 - Beyma 15P1200Nd

Beyma SB18 - 18P1200Nd vs. C-18ELF - SPL
black = Beyma SB18 - PAudio C-18ELF
grey = Beyma SB18 - Beyma 18P1200Nd
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