Punisher Horn Question.
Printed From: Speakerplans.com
Category: Plans
Forum Name: Punisher and X-tro
Forum Description: Discussion / Questions about the Punisher and X-tro
URL: https://forum.speakerplans.com/forum_posts.asp?TID=2302
Printed Date: 27 March 2026 at 12:38am Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: Punisher Horn Question.
Posted By: billkeown
Subject: Punisher Horn Question.
Date Posted: 30 July 2005 at 2:52pm
I have spent today making templates for my upcoming four punisher horns. i have a building question.
Looking at the plans, the two braces in the back set at 45 degrees to
the back one brace measurement is made from the inside of the cabinet
the other is taken from the outer edge. Is this correct?
Also walt, what would you suggest for handles i have been thinking
about putting some cutout handles in the rear of the cabinet similar to
the turbosound handle. this could fit inside the 45 degree back brace.
What do you think? Also if you have any other suggestions i would love
to hear them.
To 'efreak' If you're still lurking on here how are your punishers
running off EP2500? i have the budget to go for something better, Void
infinite8, S/H QSC, Crest etc.what other suggestions do you have for
amps? I will have four punishers 8ohm. I'm willing to go with two
smaller amps bridged or one big amp.
Thanks in advance.
Bill Keown
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Replies:
Posted By: Tom Umney
Date Posted: 30 July 2005 at 8:49pm
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Whats your maximum budget then.
2x QSC RMX1850HD would be your best bet, and cost around £450 each. So use 2 punishers in bridge on each amp.
They give 1800w rms into 4 ohm bridge, so thats 900w rms into each driver.
And as they are the Heavy Duty version represented by the HD, they can be pushed hard into 4 ohm bridge and 2 ohm loads.
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Posted By: Contour
Date Posted: 31 July 2005 at 3:55am
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Hello,
For the handles I would say that you do it the way you like. Try to keep them out of the first part of the horn. The crosssection of the horn is small so try not to disturb the horn in that region.
For amps, the Punishers like lots of power. 1500W in each Punisher is no problem at all. I have heard Infinite 8 I think for the money it is a very good amp, but a QSC PL6.0 will outperform it.
Best regards,
Walt
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Posted By: Contour
Date Posted: 31 July 2005 at 3:57am
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'Looking at the plans, the two braces in the back set at 45 degrees to the back one brace measurement is made from the inside of the cabinet the other is taken from the outer edge. Is this correct?'
Yes this is correct!
Best regards,
Walt
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Posted By: efreak
Date Posted: 01 August 2005 at 8:25pm
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I also use the 8ohm Ciare 12.00sw
I am still here. I am no longer using the the ep2500 amps. There are nice for the price but just dont stretch the legs on the punisher horns. I am now using a Crown I-Tech8000 which provides 4000watts @ 4ohm load per side on 2 punishers :) There is a big difference in sound going from 1200watts per punisher to 2000watts per punisher.
Next i will try 3 punishers per side on my I-T8000 which will provide 3500watts @ 2ohm load to compare.
Something i noticed about the punishers while monitering my amp load on the I-T8000 connected via a laptop, is that the punisher cab auctally only draws a 10ohm load. I belive this is why the punisher likes 1500watts per cab or more.
The punishers will sound good with only 1200watts but really start to output extreme sound levels with 1500watts or more!!!
A.j
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Posted By: james folkes
Date Posted: 02 August 2005 at 11:12am
efreak wrote:
Something i noticed about the punishers while monitering
my amp load on the I-T8000 connected via a laptop, is that the punisher cab
auctally only draws a 10ohm load. I belive this is why the punisher likes
1500watts per cab or more. |
this is why i crave 'intelligent' amplifiers with feedback systems. walt, don't
you use the new rams? they have all that jazz don't they? anyway this really
does show that the stiff loading of the driver holds off the impedance drop,
usefull information. i'd add that the 4 ohm ciare is a realistic proposition
then as a pair is unlikely to ever drop below 2 ohms. all good stuff.
james.
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Posted By: norty303
Date Posted: 02 August 2005 at 12:19pm
Might that also make the LAb driver a realistic proposition without needing exotic amps, e.g. 2 in parallel off a bridged amp at ~4R. Suppose that would need testing
------------- My laser stuff: http://www.facebook.com/SubsonicSystems" rel="nofollow - Frikkin Lasers
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Posted By: Tom Umney
Date Posted: 02 August 2005 at 11:44pm
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Depends how much you got to spend.
I bet with Lab Gruppen FP2400Q four channel amp or Crown MA5000VZ or Crest CA18 you can make one hell of a earthshudder using the punishers!!!!
Or even Crest Pro 10001 2 ohm bridged 15000w rms.
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Posted By: billkeown
Date Posted: 03 August 2005 at 5:24pm
1001 would be taking
the piss a bit!! Use 8001 All the time, its a great amp and
just works forever. But just the weight of the 10001!!
noooooooo!!
Punisher build is well underway, but we've run out of wood!! I'm
taking some photos and may put the up here soon. A S/H Macrotech
5000VZ in within the budget, but i'm wondering about 2 x RMX2450's
bridged. to give 1500W in a 1 sub/side setup and 1200W/Side in a 2
sub/side setup.
That just gives me a bit more flexibilty later. i.e. stick a bigger single amp onto the subs and move the RMX's onto wedges.
Also, i'm taking a gamble on Bill F's DR300 cabinets, for fun its
more of a hobby project that one but if they work as well as suggested
they'll prolly go with the punishers to make a pukka PA.
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Posted By: Timber_MG
Date Posted: 03 August 2005 at 7:07pm
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They'll be loud for one and allow you to cross low enough for the
Punisher, an important considderation for that sub. They're the first
cab of his that I have had a slighltly closer look at, though I don't
know how they sound or measure in the time domain, especially higher up
(i.e. above 400Hzish due to the bend, a flat FR curve is the secondary
considderation here really).
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Posted By: DSTAR
Date Posted: 04 August 2005 at 8:18am
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Where did you obtain your 15mm Birch Ply.
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Posted By: billkeown
Date Posted: 04 August 2005 at 3:51pm
I build PA speakers and flightcases for a day job, so am
building at work. And using their supplies, paying for them
of course!
But we buy our timber bulk from 'james latham's. A local woodyard will have some though, just get in the yellow pages.
BTW got a ciare 12.00SW today. Oh my gosh, built like a tank, the paper
of the cone itself must be 2.5mm thick!! Looks like the punisher with
this driver will be more of a WMD than a loudspeaker!!
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Posted By: Contour
Date Posted: 04 August 2005 at 4:00pm
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Hello,
Yes the Caire 12.00SW is a very impressive driver. I remember recieving the first one by mail. I had never seen such a heavey 12" driver before. It is simply the magnet of a big 18" driver which is put on a 12" cone/chassis.
The cone is indeed very thick en strong. This is needed to withstand the high pressures generated in front of the cone when driven with 1500W or more. This way the cone keeps behaving as a rigid piston and moves the most air.
One advice: make sure you don't get any airleaks in the cabinets. Since these are horns they depend very heavey on a proper construction. Air leaks will lead to unwanted noises.
Best regards,
Walt
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Posted By: billkeown
Date Posted: 04 August 2005 at 5:14pm
Airleaks shouldn't be a problem, the cab is built with 5mm
rebates on all the joints, except for the bracing, which will be just
glued and screwed. i'll probably use car body filler or mastic to
seal the driver chamber, i am aware however that using silicone in a
sealed chamber is a bad idea. thanks for the free design walt i look
forward to getting them finished and fired up.
I'll keep you posted.
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Posted By: james folkes
Date Posted: 29 August 2005 at 11:19am
billkeown i am aware however that using silicone in a
sealed chamber is a bad idea.[/QUOTE wrote:
sorry, why is that exactly? are we talking something to do with nasty vapours
whe |
sorry, why is that exactly? are we talking something to do with nasty vapours
when it is curing? i only ask because i have done exactly that and was going
to continue so doing. actually i do have some non-setting caravan mastik
which might be the better bet...
james.
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Posted By: Timber_MG
Date Posted: 29 August 2005 at 11:27am
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Silicon caulking is bad for foam surrounds and might be less than
optimal for some soft components, but I am not sure exactly. Best let
it cure first and then put in the drivers. A properly built box won't
really need the caulking. I don't know about body filler, my dad smells
the stuff from a mile away three days afterwards but I cannot really
detect it anymore.
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Posted By: james folkes
Date Posted: 29 August 2005 at 1:47pm
this is just for sealing the access door so the driver has to be exposed to
some of the fumes. options include leaving the door mounted terminal dish
off until the sealant has gone off. these drivers are cambric edge incidentaly,
but my 15s are foam, duly noted.
james.
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Posted By: billkeown
Date Posted: 12 September 2005 at 4:44pm
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On a side note regarding the punisher, building has stalled, i am embarking on a 2 month tour with not a lot of time off.
however there's only a couple of days labour left in the 4 cabinets. I am also building Bill Fitz's DR300 bout 2 days labour until i have 2 workable prototypes. I am a bit concerned about the HF that i have chosen (eminence psd2002) but time (and a bit of eq in the LMS) will tell i guess!
Now earlier today at PLASA i bumped into rog moogle and we had a really breif chat about stuff (he looked a bit busy!). He suggested that 1500W was a bit of a wacky figure for the Ciare's 4" VC. suggested maybe 1200W would be more reasonable.
I dont want to destroy drivers so what would anyone else say?
BTW who has best price on void infinite8? looks like komotion, unless anyone knows better. PM me
Cheers for listening, you've been a wonderful audience
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Posted By: loophole
Date Posted: 12 September 2005 at 8:38pm
billkeown wrote:
But we buy our timber bulk from 'james latham's. A local woodyard will have some though, just get in the yellow pages. |
is lathams still running? thought they had closed up with all the woodyards down the river lea. where are they based now? the old premises in clapton's definitely been demolished... think there was a squat party there a couple of years back incidentally 8)
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Posted By: _djk_
Date Posted: 13 September 2005 at 6:59am
If the silicone seal smells like vinegar it can disolve (while curing) many of the the adhesives used for holding the spider and the cone edge to the frame. Wait several days for it to cure before mounting the drivers. Or use a latex based caulk.
------------- djk
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Posted By: james folkes
Date Posted: 13 September 2005 at 8:00am
oh dear. right, well i'll know not to use that next time, i hope the mid cabs
don't suffer from having the access panel sealed in this way. i'll try and find
a better product.
james.
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