For extra security for high speakers, we add luggage straps Dr Peter Lennox School of Technology University of Derby, UK tel: 01332 593155 e: [email protected]
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Dave Malham Sent: 01 July 2011 09:34 To: Surround Sound discussion group Subject: Re: [Sursound] Portable ambisonics setup, or "how do you mount speakers on tubes?" On 30/06/2011 20:42, Michael Chapman wrote: > We just made 'bird tables' to put the top speakers on. About > 200 mm of broom handle to slot into the lighting stand, and > a approx 15-20 mm thick horizontal shelf (the right sized > drill and the two glue together with no clamping). > I said it was a quick expt'l project, but was over-ruled and > the bird-tables were painted black ... must admit it is an > enormous aesthetic improvement. > Whoaa! Be very careful if you are using a system like this - many years ago I was working with Chris Richards from Cepiar, trying out some decoder stuff here at York. He brought with him a system exactly like this on which we mounted some of my (then brand new) Wharfedale Diamond V's at almost 4 metres height. What Chris forgot to mention was that he _hadn't_ fixed the speakers down in any other way than their weight. I went to move one of the stands and the speaker fell off, grazed my right shoulder and smashed its corner in on the floor. If it had been 50 mm further over, I doubt if I would have been interested in height information - or anything else - any more :-( For what it's worth, I used, on the Wharefedales, Tandy (Radio Shack anywhere other than the UK) Universal wall mounts screwed and glued to the back of the speakers. They have a four hole wall mounting plate. I made up some U bolts with threaded rod the legs of which fit through the holes in the plate. These then slide over stands made (by me) of 25mm square steel tube which have a cross shaped (removable) base. To ensure safety and stability, I have a pile of concrete blocks I keep specifically to weight down the bases - stage weights would be nicer but I've only managed to scrounge a couple of those...the blocks are way cheaper. You can use Speedframe (http://www.richardsonsuk.co.uk/product.aspx?p=47&gclid=CJS8zNLd36kCFUEa4Qod-Hc5Xg) to make up this sort of stand, but being a good Yorkshireman, I just got a local company to cut up standard 25mm square tubing, which was much cheaper (though not as nicely finished) as the proper stuff and the only Speedframe bits I bought where the 5 way corner connectors to make up the bases. Dave PS Richard (Lee) - I'm pleased to report that that speaker is still working...I think I showed great restraint in not dumping it in the bin after it tried to kill me like that :-) -- These are my own views and may or may not be shared by my employer /*********************************************************************/ /* Dave Malham http://music.york.ac.uk/staff/research/dave-malham/ */ /* Music Research Centre */ /* Department of Music "http://music.york.ac.uk/"; */ /* The University of York Phone 01904 432448 */ /* Heslington Fax 01904 432450 */ /* York YO10 5DD */ /* UK 'Ambisonics - Component Imaging for Audio' */ /* "http://www.york.ac.uk/inst/mustech/3d_audio/"; */ /*********************************************************************/ _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound _____________________________________________________________________ The University of Derby has a published policy regarding email and reserves the right to monitor email traffic. If you believe this email was sent to you in error, please notify the sender and delete this email. Please direct any concerns to [email protected]. The policy is available here: http://www.derby.ac.uk/LIS/Email-Policy _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
