Horn Speakers.

it would be a very interesting project to re-build the shearer bin, loaded with the best of todays drivers.

I did have a link to the plans for the RCA/Shearer bins but the site has now disappeared. I shall try and find them again. Expensive in ply, though!

Edited by jazomir - 24 August 2013 at 7:47pm

Impressive clarity.

The track was added after the images, the stereo position does not change with movement.

Ian


Edited by London Sound1 - 24 August 2013 at 8:00pm

Here is another of the RCA's /Western Electrics playing.

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.

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.

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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.