Speakerplans.com Homepage
Forum Home Forum Home > Other Chat > Golden oldies
  New Posts New Posts RSS Feed - Horn Speakers.
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Horn Speakers.

 Post Reply Post Reply Page  <1234>
Author
Message Reverse Sort Order
Robbo View Drop Down
Old Croc
Old Croc


Joined: 05 December 2005
Location: Shropshire
Status: Offline
Points: 4226
Post Options Post Options   Thanks (0) Thanks(0)   Quote Robbo Quote  Post ReplyReply Direct Link To This Post Posted: 29 October 2021 at 1:54pm
Back in the seventies we used to sell brand new Altec 1215A cabinets in our shop in Wolverhampton---They looked like a standard W bin but they had a double fold inside with the 15" driver facing forward and they really did sound very good.
A few of the local DJs who had progressed to Transit sized vans bought them along with mids and HF horns and MM amp racks.
They were 4ft high when stood up and only about 2ft deep and could easily give the punch of a Martin Audio 115 but went a fair bit deeper in frequency response.
I bet there are still the odd pair kicking about in the Wolverhampton area to this day.
Back to Top
toastyghost View Drop Down
The 10,000 Points Club
The 10,000 Points Club
Avatar

Joined: 09 January 2007
Location: Manchester
Status: Offline
Points: 10919
Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 29 October 2021 at 1:11pm
Originally posted by Esc4pe Esc4pe wrote:

Sounds like I should really get some photos up to verify then. Mine are single 15 but look exactly the same as the cabs further up the thread but cut in half! Thank you for the useful information toasty!


A lot of folk made equivalents of the Shearer under license (or not) at the time. The RCA version by Lansing is the ‘original’.
Back to Top
Esc4pe View Drop Down
Registered User
Registered User
Avatar

Joined: 08 August 2021
Location: England
Status: Offline
Points: 165
Post Options Post Options   Thanks (0) Thanks(0)   Quote Esc4pe Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2021 at 5:09pm
Sounds like I should really get some photos up to verify then. Mine are single 15 but look exactly the same as the cabs further up the thread but cut in half! Thank you for the useful information toasty!
Back to Top
toastyghost View Drop Down
The 10,000 Points Club
The 10,000 Points Club
Avatar

Joined: 09 January 2007
Location: Manchester
Status: Offline
Points: 10919
Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2021 at 5:02pm
Originally posted by Esc4pe Esc4pe wrote:

Sorry to revive dead posts but I think I have 4 of these RCA shearer cabs, size isn’t a problem so we got them to try. They currently have old jbl in them but do you think it’s worth getting some modern drivers and which ones? 


The Shearer horn was actually designed by Olson and Volkmann, and only Lansing used that name for them. They used a 12 dB per octave crossover, and should be a dual-15" re-entrant element if they're originals and genuine. The extra 'baffles' that attached at the sides and bottom make a big difference from the data I've seen.

There's an excellent section on these and other developments of the period in the Horn book from Kolbrek and Dunker. Here's the measured frequency response of the original Shearer horn design, solid curve:


If they could measure their designs in 1935, then surely people doing Hornresp models can measure theirs in 2021
Back to Top
Esc4pe View Drop Down
Registered User
Registered User
Avatar

Joined: 08 August 2021
Location: England
Status: Offline
Points: 165
Post Options Post Options   Thanks (0) Thanks(0)   Quote Esc4pe Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2021 at 4:58pm
Didn’t see those drivers before replying LOL I’ve got some pd1550 to try if they will fit so will go with them first. If all is well may go with something along that route but think that may obliterate the old things 
Back to Top
Esc4pe View Drop Down
Registered User
Registered User
Avatar

Joined: 08 August 2021
Location: England
Status: Offline
Points: 165
Post Options Post Options   Thanks (0) Thanks(0)   Quote Esc4pe Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2021 at 4:54pm
They’ve been left outside for years and still seem in really good shape! Can’t speak for the internals though haha! I’ll post some feedback when I’ve got around to testing them either on here or a new thread Thumbs Up
Back to Top
bob4 View Drop Down
Old Croc
Old Croc
Avatar

Joined: 29 February 2004
Location: Finland/Germany
Status: Offline
Points: 1843
Post Options Post Options   Thanks (0) Thanks(0)   Quote bob4 Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2021 at 2:27pm
Originally posted by Esc4pe Esc4pe wrote:

Sorry to revive dead posts but I think I have 4 of these RCA shearer cabs, size isn’t a problem so we got them to try. They currently have old jbl in them but do you think it’s worth getting some modern drivers and which ones? 

B&C 15DS115 , and see if they break apart or not Dead
Back to Top
Esc4pe View Drop Down
Registered User
Registered User
Avatar

Joined: 08 August 2021
Location: England
Status: Offline
Points: 165
Post Options Post Options   Thanks (0) Thanks(0)   Quote Esc4pe Quote  Post ReplyReply Direct Link To This Post Posted: 25 October 2021 at 11:26pm
Sorry to revive dead posts but I think I have 4 of these RCA shearer cabs, size isn’t a problem so we got them to try. They currently have old jbl in them but do you think it’s worth getting some modern drivers and which ones? 
Back to Top
Bams View Drop Down
Young Croc
Young Croc


Joined: 08 April 2009
Status: Offline
Points: 628
Post Options Post Options   Thanks (0) Thanks(0)   Quote Bams Quote  Post ReplyReply Direct Link To This Post Posted: 08 August 2020 at 10:49am
Completely offtopic but i remember seeing a photo of your rig during the mid-nineties and thinking that was the route Stage accompany should have taken instead of running their ribbon so low.
Back to Top
G Carttar View Drop Down
New Member
New Member


Joined: 08 August 2020
Location: Missouri USA
Status: Offline
Points: 1
Post Options Post Options   Thanks (0) Thanks(0)   Quote G Carttar Quote  Post ReplyReply Direct Link To This Post Posted: 08 August 2020 at 6:11am
I have 4 original Shearers that have been rebraced and made ready for road use, they were out with  my Johnny Cash Tour crew from 1979 until he retired in 1997. Prior to that they belonged to Silvertrain Sound and I acquired them when I bought the assets of Silvertrain to put out on Cash.

There is nothing like them, in good ways and bad ways. Good ways are their thunder, bad ways are the logistics. Smile

I also bought 8 Carlo Sound Shearers, which are the labrinth core of the original Shearer except the horn flare is squared off so that they truck pack well. They are also thunderous and much easier to handle. They have been fitted with additional bracing to control resonance.

The full-size Shearers had Gauss drivers in them at the time I acquired them, and I changed them out for RCF 15L800 (?)s, and eventually put RCFs in the Carlo boxes as well. JBL 2225s worked OK, but don't hold a torch to the RCFs.

They are all still in service, the full size Shearers are usually teamed with Altec 211 bins and Mantaray 420s/291-16Bs for long-throw bass/low mid /high artillery for special requirements. The 211s have also been modified with tuned ducted ports to replace the slot ports in the original box. 600W, 600 feet, no problem. They are formidable in their own right.

The Carlo Shearers are on the bottom end of a 56 box + subs 4-way proprietary system that features Stage Accompany Planar Ribbon HF drivers. THOSE boxes are a side port version of Altec 816s that I developed 2 years before Stanal Sound (Stan Miller) teamed with Altec for the Stanley Screamer line. Mine are braced in the port like the 817 is, and the internal cavities formed by the horn flares are sealed off to eliminate another resonance. That system using JBL 2300 series horns in space frames that could be J-curved and was doing Steve Martin's tour in 1977-1980 in the biggest venues in the US, lots of big fairs, and Statler Brothers Arena tour 1986-1991.

(Full disclosure---I was based 35 miles down the road in Nebraska in those days, and I studied at the feet of the Stanal people in the early/mid 70's and their teachings were absolutely critical for my systems working well over the last 40+ years)

I have often been tempted to build some new Carlo Shearers, but have not gotten around to it.

----------
Now as to the Stanley Screamer twin-15 sub box...those were monsters when covered in Fibreglas for the road. They would go Waaay down there, but needed a lot of room to breathe. NOT a small room sub. They were a challenge to handle. Stanal used them on tour with many acts, and they also used a 1 octave sub-sonic synthesizer to really make them rumble.

Stan Miller, Monte Krabiel, Chris Foreman, Dick Albrecht, and all those folks allowed me to happen.

Most of those folks went on to other companies when Stanal ended, Chris was at Ramsa, Yamaha, JBL, and wound up at Community Sound along with Ernie Zillenger.
Back to Top
jazomir View Drop Down
Old Croc
Old Croc


Joined: 20 November 2006
Location: Sunderland UK
Status: Offline
Points: 1711
Post Options Post Options   Thanks (0) Thanks(0)   Quote jazomir Quote  Post ReplyReply Direct Link To This Post Posted: 25 August 2013 at 12:29am
Yes, you're correct - there were also some comments on the Utoob page suggesting this too. One thing that bothers/worries/impresses me in equal measures about using PA type speakers for sound demos is how they always sound great with jazz vocals, brass & piano but they fall down on intricasies such as orchestral stuff. Perfectly suited to a hot summer's day in the park drinkin' wine, and eatin' cheese and catchin' some rays (thanks, Oddball). Still, I did fall in love with some A7s years ago, and despite the fact they don't measure up, they still have a lovely sound to them. More psycho-acoustics, vicar?

Edited by jazomir - 25 August 2013 at 12:38am
For sidefills, can we have two enormous things of a type that might be venerated as Gods by the inhabitants of Easter Island, capable of reaching volumes that would make Beelzebub soil his pants.
Back to Top
jbl_man View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 12 January 2005
Location: London.
Status: Offline
Points: 11155
Post Options Post Options   Thanks (0) Thanks(0)   Quote jbl_man Quote  Post ReplyReply Direct Link To This Post Posted: 24 August 2013 at 8:25pm
Here is another of the RCA's /Western Electrics playing.


Be seeing you.
Back to Top
 Post Reply Post Reply Page  <1234>

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.06
Copyright ©2001-2023 Web Wiz Ltd.

This page was generated in 0.078 seconds.