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Author Topic: Need To Know the Weight of Speaker Bill Enos Film God Posts: 2081 From: Richmond, Virginia, USA Registered: Apr 2000 posted 07-20-2005 12:17 AM                     What does an Altec A4 with two multi cellular horns on top weigh?  |  IP: Logged Kenneth Wuepper Phenomenal Film Handler Posts: 1026 From: Saginaw, MI, USA Registered: Feb 2002 posted 07-20-2005 06:34 AM                     Hello Bill, Try this page for a start. http://www.voiceofthetheatre.com/images/VOTTCAT.1983.P3.jpg http://www.voiceofthetheatre.com/images/VOTTCAT.1983.P2.jpg There is also an "unofficial" Altec page. http://alteclansingunofficial.nlenet.net/ I think you are looking at between 650 and 700 pounds depending on the horn(s). KEN [ 07-20-2005, 10:14 AM: Message edited by: Kenneth Wuepper ]  |  IP: Logged Floyd Justin Newton Jedi Master Film Handler Posts: 559 From: Phoenix, Arizona, USA Registered: Jun 2002 posted 07-20-2005 07:54 AM                     Bill-- They are heavy! Enough to give you a hernia!  |  IP: Logged Samuel Hynds Film Handler Posts: 50 From: Riverside, CA, USA Registered: Aug 2004 posted 07-20-2005 09:47 AM                     The A7 weights in at 170 lbs. I would think the A4 weight more. Sam  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 07-20-2005 11:39 AM                     It depends on the vintage of the speaker since they used different woods in the later years (older ones are heavier). Also the vintage of the multicell horn will affect weight. An A4A can be anywhere from 623lbs to 656lbs depending on horn model and single or dual driver.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 07-20-2005 12:08 PM                     Why do i get a feeling someone is thinking of flying a trio of them Hope you have a good arbor and lots of counterweight  |  IP: Logged Kenneth Wuepper Phenomenal Film Handler Posts: 1026 From: Saginaw, MI, USA Registered: Feb 2002 posted 07-20-2005 12:29 PM                     Gordon, The Fox in Detroit had their cinema speakers on a lift that rose from beneath the stage floor to expose the speakers and then lowered to make the stage floor level again. That was a lift like were used for organ consoles only much larger in scale. Radio City Music Hall did fly their RCA speaker clusters for the cinema presentations. Huge speakers and a very strong grid. KEN  |  IP: Logged Sam D. Chavez Film God Posts: 2153 From: Martinez, CA USA Registered: Aug 2003 posted 07-20-2005 03:37 PM                       At some point I seem to rembeber Radio City having dual A7's on each channel to save space in the fly loft. Pretty icky for a world class theatre.  |  IP: Logged Bill Enos Film God Posts: 2081 From: Richmond, Virginia, USA Registered: Apr 2000 posted 07-21-2005 12:30 AM                     Gordon, you hit it on the head, but it was 17 years ago. We flew them in '88 for one show. The guy who rented the theatre for the event wanted all the space he could get. He did the work for getting them up. As you might imagine nobody was comfortable being directly below them. After it was over, we took 'em down and disconnected them from the batten. A couple years later we hung the silver screen from that batten. We were discussing the foolhardiness of the whole adventure a couple days ago and were wondering how much weight we had overhead.  |  IP: Logged Kenneth Wuepper Phenomenal Film Handler Posts: 1026 From: Saginaw, MI, USA Registered: Feb 2002 posted 07-21-2005 06:12 AM                     Sam, As I recall, the RCA clusters were 3 or 4 huge cabinets with large multi-cell treble horns on top. At least 6 or 8 15 inch drivers. Doing Radio City with A7s is like making announcements in Yankee Stadium using Rudy Valle's megaphone. KEN  |  IP: Logged Sam D. Chavez Film God Posts: 2153 From: Martinez, CA USA Registered: Aug 2003 posted 07-21-2005 10:59 AM                       Kenneth I agree it was absurd but the memory lingers. This was around 1980. Is your recollection before or after that?  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 07-21-2005 11:49 AM                     Sam, Warren Jenkins once told me that the stage shows required more fly space so smaller speakers were used he remembered it as 3 A7 base bins and a set of splayed horns per channel. At one point they experimented with a Klipsh speaker as well But then at that time they had ElectroSound Amps and a CP100/SA5 in the booth  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 07-21-2005 12:59 PM                        My understanding is that Music Hall had 50 watts or less for P.A. until recent years because of really good acoustics. (Yes, I know how big it is.) Perhaps a small speaker was thought adequate. Maybe also, it is that people are not as easy to please now. Louis  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 07-21-2005 01:53 PM                     Bill, If my memory serves...you have Simplex speakers don't you? Do you have actual A-4s? The Simplexs sat horizontal. If they are Simplexes...then the LF section (LU-1106) weighs in at 550 lbs). The HF section can have one driver with the whole horn/driver/sled coming in at 76 lbs. If you have two drivers on the HF unit then it is 132 lbs.) The systems were called the XL532-312 or XL536-312 or XL532-322 or XL536-322 depending on the HF horn (8, 10 or 15 cells) and drivers (1 or 2).  |  IP: Logged Scott Norwood Film God Posts: 8146 From: Boston, MA. USA (1774.21 miles northeast of Dallas) Registered: Jun 99 posted 07-21-2005 02:08 PM                        Steve--do you remember what we had at Williamsburg before the recent upgrades? They were Simplex speakers as well, with Altec 288 horns on top and a single 515 driver inside. I vaguely remember that the rigging guys who flew them said that they weighed about 500 lbs. I think that the rigging equipment was rated for 10-20x their actual weight.  |  IP: Logged

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