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Disco Stu View Drop Down
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Posts: 2288 		Post Options Post Options   Quote Disco Stu Quote  Post ReplyReply Direct Link To This Post Topic: Porn Horn V3 ideas
    Posted: 22 October 2007 at 2:32pm
Originally posted by ceharden

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.
 
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ceharden View Drop Down
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Posts: 6827 		Post Options Post Options   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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Posts: 2288 		Post Options Post Options   Quote Disco Stu Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2007 at 3:33pm
Originally posted by ceharden

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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Posts: 3407 		Post Options Post Options   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 22 October 2007 at 4:07pm
Originally posted by Disco Stu

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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Posts: 4410 		Post Options Post Options   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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Posts: 2288 		Post Options Post Options   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
 
Stu
 
 
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Posts: 9994 		Post Options Post Options   Quote mykey Quote  Post ReplyReply Direct Link To This Post Posted: 23 October 2007 at 5:09am
Originally posted by Heathrow_B_line

Originally posted by mykey

 
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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Posts: 85 		Post Options Post Options   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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Posts: 457 		Post Options Post Options   Quote dj-panoramix Quote  Post ReplyReply Direct Link To This Post Posted: 16 October 2008 at 5:26pm
Originally posted by Footloose

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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Posts: 3160 		Post Options Post Options   Quote Deadbeat Quote  Post ReplyReply Direct Link To This Post Posted: 16 October 2008 at 5:38pm
Umm...
http://www.voidaudio.com/product_detail.asp?id=17

*certain members may be working on a top-secret 12+6+1.

Also see Limmer + Porn horn/MT12 combo.
Away on extended leave.
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