Porn Horn MK2
Printed From: Speakerplans.com
Category: Plans
Forum Name: Po rn Horns
Forum Description: Discussion / Questions about the Po rn Horns
URL: https://forum.speakerplans.com/forum_posts.asp?TID=6624
Printed Date: 19 April 2024 at 8:01am
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com
Topic: Porn Horn MK2
Posted By: Nigey-C
Subject: Porn Horn MK2
Date Posted: 25 September 2006 at 12:40pm
| Do we have any info on these yet?? any rough designs? Pics of prototypes? Freq Response?? |
Replies:
Posted By: ceharden
Date Posted: 25 September 2006 at 3:04pm
|
If only, me wants too! Edit: I think Mykey is missing a trick here. Everyone wants a single 12" flare (not co-axial) but it's the one thing missing from his product line-up. I know what I want. Throat about 250cm2, flare length 45-50cm, mouth 2500cm2 or so. Phase plug ideally. If someone could suggest a good material to make a mould out of I might just have to get on and do it myself! Just need something which can be shaped easily... Maybe as a group we can do something... |
Posted By: mykey
Date Posted: 25 September 2006 at 10:52pm
 its the way of the world
and 250cm2 is more a 10 by the time you put a phase bung on it
you also said on you pm you would need it 50 cm wide? super narrow dispersion, would end up like Turbo Flashlight and they are bigger
if a group of you get together and design one i dont mind manufacturing it for you???? would be a bit of competition for porn horns
------------- ......just all them hanging there like giant bananas. |
ceharden wrote:Posted By: ceharden
Date Posted: 26 September 2006 at 3:03am
|
Ok, so the values weren't exact, need more playing on Hornresp to
decide on a final flare. The 250cm2 is the area after putting the
phase plug in but doesn't matter at the moment..... If I come up with a suitable design I'll let you know! I actually want a 60deg dispersion flare, so some work is still required. |
Posted By: Nigey-C
Date Posted: 22 November 2006 at 3:47pm
| any news on the mk2 yet?? |
Posted By: Heathrow_B_line
Date Posted: 22 November 2006 at 5:58pm
|
feb time im told... but that is a maybe! ------------- Produce a killer sound. Take no prisoners. |
Posted By: Nigey-C
Date Posted: 22 November 2006 at 6:00pm
|
jeesus!! Thats 2 nk2 products im waiting to hear about now! |
Posted By: Nigey-C
Date Posted: 22 November 2006 at 6:01pm
| or i could spend some money on the JanAudio Coaxial 12" and cut the coaxial bit out of it... |
Posted By: Nigey-C
Date Posted: 22 November 2006 at 6:04pm
Just read the quote then look on the Jan audio site.... there is already a double 12" moulded horn on there!! So make a damn single 12" without the coaxial part!!! |
Posted By: Rog
Date Posted: 14 December 2006 at 6:40am
|
Hi,
Yep about late Jan or Early Feb is looking good.
I'm having problems with finding suitable HF drivers. Tried the B&C DE 82 and the Beyma CP 755Nd but these are loud enough to keep up with the 12" horn. The 12" horn is so loud now that the only HF drivers that are going to keep up with it are going to cost a lot of money. This is not what I had planed as I wanted to use HF drivers like the DE 82 or CP 755Nd, which are at the lower price band for 1.5" drivers.
I'm working on a new HF horn that might be able to play louder, but at the moment I'm having to add 2 dB to the HF driver to get it flat with the 12" horn.
Will keep you posted and will post a polt of the 12" horn soon.
Rog.
|
Posted By: ceharden
Date Posted: 14 December 2006 at 8:03am
|
Cheers for the update Rog. The Porn MkII is going to be a definite contender for my rig. What would be your recommended low crossover for it? Would 160Hz be ok? Also, what is the recommended 12" driver? I've got a couple of different 12" drivers (B&C) suitable for horns, would like to use those if possible. |
Posted By: Heathrow_B_line
Date Posted: 14 December 2006 at 2:16pm
|
how many ppl can a pron horn play too anyway? is it less then an mt121?
bit curious as to hw the sounds would compare too ------------- Produce a killer sound. Take no prisoners. |
Posted By: Rog
Date Posted: 14 December 2006 at 7:06pm
|
I've been crossing the 12" horn over at between 119 and 125 Hz and its ok with that. Its -3dB point is around 128Hz IIRC.
I've mouded the phase plug around the P Audio SN12 B. Its a tight fit and I'm not sure if any other drivers profile will fit.
The 12" horn comes with its own sealed rear chamber this time.
Don't know how may people it will play to. Difficult question. Yes its going to be louder than a MT121. The clue here is that I'm having to add 2dB to the HF driver to get it to keep up with the 12" horn. And the HF drivers I'm using are about 105 to 106 dB 1w/1m. So its a loud 12" horn.
Might have to go the 2" throat with 4" dia so it can keep up with the 12. But really wanted to use a 1.5" with 3" dia to get up to around 17 kHz. If I have to use a 4" dia on a 2" throat then it might need bullets or a HF driver above it and it starts to get complicated and expensive. Think Martin F2.
Rog.
|
Posted By: Mark James
Date Posted: 14 December 2006 at 7:37pm
|
or you could use a 6.5" <3khz and 1" from there up.............
------------- me so horny me love you long throw horn loaded for her pleasure |
Posted By: ceharden
Date Posted: 14 December 2006 at 9:47pm
|
Sounds very good Rog, I've been trying to design a 12" horn but somehow I don't think I'd match anything you'll do! Will have to compare the SN12B if I can get hold of one with my drivers. You never know, they might work. Shame cos one is the 12MH32, I reckon a good driver for this application and the other a 12NDL76, not the smoothest but plenty of output and as light as an SN12B. I've also got some of the 18Sound elliptical 1.4" flares (60x40) which I'd like to use on top. (Maybe 18Sound Driver too) Would this be a good combo? As an aside I was mixing on and trying to get the setup right on a F1/F2 system tonight. EQ'ed it flat with ETF's software and it ripped my head off, had to back the top end off. Didn't quite get that right! Sounded ok in the end but it's all a bit old and tired, especially the F2B's. Reckon some of these horns might make a nice replacement top end tho. Sorry about all the questions, just getting excited at the prospect of some rather tasty new mid-tops! |
Posted By: Rog
Date Posted: 20 December 2006 at 5:41am
|
Got it.
Played again with the HF horn and got it pretty flat up to 18KHz.
The only affordable and light compression driver thats up to the job is the Beyma CP 755 Nd. Its a loud and good sounding driver. Tried the B&C equivalent and its not quite as good.
Will post the plots soon and also will make some LMS programs avaliable for most of the popular LMS units. That way you can just download the program and know that you porn horn is flat. This is helped by the 12" horn having its own chamber that comes with the kit. And if you use the same drivers I did then there are no variables and your'e get the same plot I did. Might even do a passive 2 way crossover.
Rog.
|
Posted By: biotec
Date Posted: 20 December 2006 at 1:54pm
|
well you seem to have saved me the need build a kick bin between my 1850s and phillishaves. Seems like I'll just replace the whole mid-top. A very small point but my rebadged XTA doesn't have network connectivity so do you think you could post the parametric/delay/filter setting so that I can manually put them in when the new porn horns are for sale. |
Posted By: Heathrow_B_line
Date Posted: 12 January 2007 at 3:27pm
|
i phoned pap the other day and jethro says these will not be ready by the end of feb!!!!!
and doesnt know when they will be ready to buy.
interestingly though it sesms they will sell both mk 1 and mk 11 porn horns. can anybody confirm this?????? ------------- Produce a killer sound. Take no prisoners. |
Posted By: biotec
Date Posted: 14 January 2007 at 8:48am
| I've put an order down for 4 already, getting excited. |
Posted By: ceharden
Date Posted: 14 January 2007 at 11:20am
| But did they give you an idea of when you could get your hands on them? Have you seen any pics yet? |
Posted By: biotec
Date Posted: 15 January 2007 at 3:51am
| late february was the estimation. Apparently the phase plug is a strange looking thing and the box is very different to the last version? There's some photos down at void if I can be bothered to travel. |
Posted By: Bryan M
Date Posted: 23 January 2007 at 11:01am
|
no need nick
pics of it are here http://www.speakerplans.com/forum/forum_posts.asp?TID=8367 - http://www.speakerplans.com/forum/forum_posts.asp?TID=8367
|
Posted By: COWFOOT
Date Posted: 24 January 2007 at 8:55am
|
I wonder if the phase plug is very rigid?Can it withstand the force of flying beer bottles etc. I take it a speaker grill is recommended?
|
Posted By: login4
Date Posted: 24 January 2007 at 11:37am
they do look pornographic  i like the idea of of the passive x-over as well, better for the hire system. what sort of price are we talking here rog?. ------------- CELTIC SUBSONIC SOUND SYSTEMS |
Posted By: COWFOOT
Date Posted: 25 January 2007 at 11:39pm
|
The MK2 has a lot going for it. I like it.
How about a Porn sub?
|
Posted By: mykey
Date Posted: 26 January 2007 at 8:24am
nice gig's you attend Cowfoot
cow sh-t can still get through the grill's ------------- ......just all them hanging there like giant bananas. |
Posted By: COWFOOT
Date Posted: 26 January 2007 at 8:46pm
| The cow crap probably wouldn't break anything. |
Posted By: COWFOOT
Date Posted: 26 January 2007 at 8:51pm
| Community had a double fifteen low mid horn called the Boxer.That would probably complement the Porn Horn very well. |
Posted By: Timber_MG
Date Posted: 27 January 2007 at 12:10am
|
@ceharden: I don't know whether you could strech some sort of condom over a frame,but a 2500cm^2 mouth would make that a little big. Phase plug.... mould something over a cellophane coated driver and have it meet a bandsaw to make a sort of radial plug is what I'd do. if you want a master part for a nose you could add an extra step and make something like it on a lathe making sure it can fit and incorporating that into your mould Personally I'd prototype out of an even-rising 2k expanding polyurethane foam. A nose would be wooden. A silicone mould would probably be the best bet for a phase plug. |
Posted By: COWFOOT
Date Posted: 27 January 2007 at 8:04pm
| Maybe one could build a metal framework to hold the 12" horn as well as the compression horn thereby eliminating the wooden cabinet.Something to ponder. |
Posted By: mykey
Date Posted: 28 January 2007 at 1:03am
cowfoot! look at my design from a few years ago, metal frame's
 ------------- ......just all them hanging there like giant bananas. |
Posted By: unclejam
Date Posted: 28 January 2007 at 1:51am
|
wouldnt that cause resonances?
heavy right really heavey |
Posted By: mykey
Date Posted: 28 January 2007 at 2:40am
|
no! actually lighter than a wooden cabinet
hollow square steel tubing
first option was for aluminium, but was too costly ------------- ......just all them hanging there like giant bananas. |
Posted By: COWFOOT
Date Posted: 28 January 2007 at 7:42am
|
Lots of advantages to having the metal frame.One con though is most of us don't know how to weld or have the equip.I guess we could call on a welder to make the frame. |
Posted By: login4
Date Posted: 28 January 2007 at 8:24am
i think its a great idea, lighter, easyer to handle, looks industrial, 
------------- CELTIC SUBSONIC SOUND SYSTEMS |
Posted By: cletus
Date Posted: 28 January 2007 at 9:50am
|
Funny i was only thinking of this day... alloy is simple, Mig welder + argon gas :) |
Posted By: COWFOOT
Date Posted: 28 January 2007 at 9:54am
| Hey Mykey: What's with all the camouflage vinery on the bass bins.!!!! was this rig set up in Iraq ? |
Posted By: COWFOOT
Date Posted: 28 January 2007 at 9:57am
|
Wish one of my brother-in-laws was still living nearby.He is a certified welder.he had a fully equipped workshop.he is 2 thousand miles away now. |
Posted By: biotec
Date Posted: 28 January 2007 at 10:13am
| if anyone needs a welder in the London area I have a very skilled friend. He'll come out and work wherever you want for very reasonable rates. He's worked on everthing from classic sports cars to 100ton+ plant equipment. |
Posted By: unclejam
Date Posted: 28 January 2007 at 6:55pm
|
hey mike what are those got any plans looking for something to put ontop of my labs n hd215s
that would be 4 labs:2 hd215's:blank blank blank |
Posted By: toastyghost
Date Posted: 04 April 2007 at 8:19am
|
Looks like these should be available from PAP by the end of June. Sounds like they intend to offer them fully built and loaded at some point too, albeit for a grand a cab. |
Posted By: biotec
Date Posted: 04 April 2007 at 3:41pm
| I ws told late march when I spoke to them in february! my two and a half grand has now been spent elsewhere. |