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Porn Horn V3 ideas

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dj-panoramix View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dj-panoramix Quote  Post ReplyReply Direct Link To This Post Posted: 16 October 2008 at 5:26pm
Originally posted by Footloose Footloose wrote:

A three way would be great (poss. 12" - 8"/6" and 1.4"/1"), but you could probably get something commercial s/hand for the sort of money that would end up costing.
Or maybe a 1.4" hf, 10" or 8" mid and a 12" or 15" on a folded horn, like a resolution 4/5 or Aspect TA-500.
 
that would be really nice ,a 3 way fully horn loaded loud speaker with phase plug for 6" and a short horn for the 12"  Clap
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Footloose Quote  Post ReplyReply Direct Link To This Post Posted: 04 November 2007 at 8:07am
A three way would be great (poss. 12" - 8"/6" and 1.4"/1"), but you could probably get something commercial s/hand for the sort of money that would end up costing.
Or maybe a 1.4" hf, 10" or 8" mid and a 12" or 15" on a folded horn, like a resolution 4/5 or Aspect TA-500.


Edited by Footloose - 16 November 2007 at 11:48am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 23 October 2007 at 5:09am
Originally posted by Heathrow_B_line Heathrow_B_line wrote:

Originally posted by mykey mykey wrote:

 
Bit more expensive than the MX12 though HBLConfused
 
 
when you think it would take 2 or 3 mx12 boxes to be as loud as one porn it soon starts looking like the cheap option.
 
 
Don't know if you have eye sight trouble HBL, in that pic is a back bowlLOL
 
wasn't talking about the porn horn was talking about that horn in the pic
 
 
......just all them hanging there like giant bananas.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Disco Stu Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2007 at 5:05pm

Last time I checked PAP quoted me £1600 I think for a Stasys but that was a while ago and the Mk I I think

Stasys uses custom drivers AFAIK
 
I think its odd - the MT121 is a good sounding box - why Rog didnt add the Porn horn as a Void Product I dont know
 
Nevertheless Heathrow you were looking at Porn Horn V3 ideas - I doubt there will be one as Rog stated that he barely sold any of the Mk I anyway. But if there is I definitely think a rotatable HF or modular system would be much more flexible
 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Heathrow_B_line Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2007 at 4:08pm
which drivers does the Stasys use?
Produce a killer sound. Take no prisoners.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2007 at 4:07pm
Originally posted by Disco Stu Disco Stu wrote:

If as you say the Porns were designed for touring systems and high end applications then that furthers the mystery of their design - Because the Stasys 3 already exists to fill that market and does so very well and I think last time I checked the Stasys wasnt a great deal more expensive than the Porn but that may have changed
 
Stu


Stasys 3 list is £2500, even with discounts I'd be surprised if it competed with £1000 for a pre-built Porn v2.

Although I do think that having an extra 6.5" driver will give a less 'stressed' sound when run loud than the Porn top end.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Disco Stu Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2007 at 3:33pm
Originally posted by ceharden ceharden wrote:

I think the point is that you should only be using horn loaded midranges like the Porns in large systems when the disadvantages aren't an issue.  They were never designed for small scale touring.  If you want to just run a 3 way system with one or two tops per side then I think direct radiating 12" or 15" mids are a much better solution.

The system I've been taking out to do bands recently is (per side) one twin 18" sub and one twin 12" + 1.4" mid-top.  That's been doing venues of a few hundred capacity without even breaking a sweat (rarely reaching -6dB on the LMS).

On the other hand, one of the venues I work in for live bands has two Martin F1 tops per side (single 12" horn loaded + HF) for a capacity of up to 500-800 people.  Assuming the Porns are louder than that I don't think you really need more than 2 of them per side for a lot of applications.

 
Thats a fair point about the martins
 
If as you say the Porns were designed for touring systems and high end applications then that furthers the mystery of their design - Because the Stasys 3 already exists to fill that market and does so very well and I think last time I checked the Stasys wasnt a great deal more expensive than the Porn but that may have changed
 
Stu
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ceharden Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2007 at 2:50pm
I think the point is that you should only be using horn loaded midranges like the Porns in large systems when the disadvantages aren't an issue.  They were never designed for small scale touring.  If you want to just run a 3 way system with one or two tops per side then I think direct radiating 12" or 15" mids are a much better solution.

The system I've been taking out to do bands recently is (per side) one twin 18" sub and one twin 12" + 1.4" mid-top.  That's been doing venues of a few hundred capacity without even breaking a sweat (rarely reaching -6dB on the LMS).

On the other hand, one of the venues I work in for live bands has two Martin F1 tops per side (single 12" horn loaded + HF) for a capacity of up to 500-800 people.  Assuming the Porns are louder than that I don't think you really need more than 2 of them per side for a lot of applications.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Disco Stu Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2007 at 2:32pm
Originally posted by ceharden ceharden wrote:

I assume therefore that you must have even more issues with every other cab based around a horn loaded 12" driver. 

I run direct-radiating twin 12" mid tops which are capable of going well below 100Hz but I actually run the crossover to the subs at 110-130Hz, sometimes higher without any problem with the vocals.  Most of my work is live bands.

 
Yes I do and I have only heard them sounding good when part of a 4/5 way system installed - which is not practical for small scale touring - Double 12 versions of such cabs usually perform a lot better for smaller applications IMO and for me would give a much more useful solution. In the same way that 1x Bass horn is not "useful", 1x12" horn is also not "useful" for a wide range of applications and since the only place the Porn seems to be pushed is this forum surely the design brief is somewhat misguided for the target audience? Either that or the suggested setup - I think setup with 2x12" horns and 1xHF you would have a much more complete system.
 
The Porns dispersion is wide enough that you can only have 2 cabs spaced to handle roughly 180 degrees horizontal and because of its typical horn on top of mid rather than horn alongside mid there is about only one way to stack and thats MTTM so you would have to be content with 4 cabs per cluster if you arranged this way - I presume this is an acceptable compromise for most - Either way I think Rog has missed a trick by not going with a standard double 12" config in keeping with MT122
 
As you say you use double 12"s but reflex are very different things as the stress on a driver below the cutoff of a horn is much greater than in a standard reflex so you can do this - I think thats why 4560 type designs still have their merits.
 
Stu
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ceharden Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2007 at 12:26pm
Just thinking....  You're finding all these issues with the Porn Horns, don't go low enough, not loud enough etc....  I assume therefore that you must have even more issues with every other cab based around a horn loaded 12" driver.  The Porn horn, because of it's size should actually go lower and louder than most of the other designs.  Even with multiple cabs they still won't get much lower because it's mainly determined by the horn length rather than mouth size in this case.

I run direct-radiating twin 12" mid tops which are capable of going well below 100Hz but I actually run the crossover to the subs at 110-130Hz, sometimes higher without any problem with the vocals.  Most of my work is live bands.

If you want to use a Porn Horn or any other horn loaded midrange then you have to design the system around them...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Heathrow_B_line Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2007 at 12:24pm
Originally posted by mykey mykey wrote:

 
Bit more expensive than the MX12 though HBLConfused
 
 
when you think it would take 2 or 3 mx12 boxes to be as loud as one porn it soon starts looking like the cheap option.
 
 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Disco Stu Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2007 at 11:48am
Originally posted by mykey mykey wrote:

no need to stack them.
 
Heathrow - I have heard enough Void Cabs to know the quality of Rogs designing and yes you are right its good!
 
Mykey - BUT....
What if you need more SPL?
 
Porn horn is what 106dB with 300W would give a theoretical 131dB which is a fair amount but what happens when you need more? OR more importantly what happens when you need more extension to go down to meet a sub at 100Hz.
 
So the design forces you to choose subs that go up to 140Hz since a) No sane person crosses a single 12" on a horn with a small mouth at 120Hz and b) You need something left in the response of the speaker below the crossover point to make the transition smooth at that frequency.
 
It doesnt cover the vocal range on its own (doesnt go down to 100Hz) so MUST be used in a proper stack with the kick bass at at least chest height or the vocals will sound thin
 
Those arent criticisms for a lot of people because I am sure many will have the ability to set up a system like this - but it means you always have to take out a monster rig to get them to sound good in conjunction with the rest of the rig - Whether they sound good on their own is irrelevant as they dont make up a complete sound system - and you tested them with 4 HDs and 4 X1s!
 
Im sure it sounded great but lack of flexibility is the phrase that comes to mind.
 
Stu
All you need to know is:
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