i would agree with that (arent there too many wires already?) but i found a cheaper solution in chinese made digital amplifier cards. 50 dollars including shipping for four channels! you need to build a box etc of course. there are switched mode power supplies too. (search for sure electronics on ebay) i use light weight home made speakers with a metal hook on the back. just now they hang on walls, but can easily hook them up otherways. i would make a ring and hook assembly which can slide up the stands and locked in place. umashankar
i have published my poems. read (or buy) at http://stores.lulu.com/umashankar > Date: Thu, 30 Jun 2011 10:53:22 -0400 > From: [email protected] > To: [email protected] > Subject: Re: [Sursound] Portable ambisonics setup, or "how do you mount > speakers on tubes?" > > I don't have an answer to your question. But i would consider using passive > speakers and a separate amp setup. That will take some weight off your > stands, and, the bigger advantage, you won't have to run power and and audio > cables to every speaker location - just to the amp setup. Simple speaker > wire (lamp cord) goes out to the speakers. > > we've been using this amp with some small behringer 1C monitors (JBL control > 1 knock offs - more or less) for an inexpensive solution that performs > surprisingly well (a bit lo-fi - especially the monitors): > http://www.bhphotovideo.com/c/product/597468-REG/Pyle_Pro_PCA3_PCA3_Mini_2_x.html > > we have a bunch of stereo kits that can be combined for multichannel use or > used separately. > > - > > something like this is more pro: > Rane MA4 4-Channel, 4 x 100W Amplifier MA 4 B&H Photo > Video<http://www.bhphotovideo.com/c/product/362083-REG/Rane_MA_4_MA4_4_Channel_4_x.html> > > and there are a lot of surround sound receivers that will do the trick > nicely with 5 or even 7 channels of amplification in a single unit. Many > even have calibration routines built in. But it's hard to find them with > discreet analog input these days - I would look for that or be prepared to > deal with getting a digital multichannel input to the receiver. > > jim > > On Thu, Jun 30, 2011 at 9:36 AM, Franck M. <[email protected]> wrote: > > > I'm designing a mid-size (8 to 12-ch) ambisonics setup, using small active > > near-field studio monitors such as Fostex PM04, Focal CMS40, BM-5A...(the > > exact model will depend on the funding I'll get for this project). > > > > As it is supposed to be "portable" (well, transportable would be a better > > term) I'm planning to put the speakers on stands (such as lightning > > roll-stands from Manfrotto) that can be easily folded and put in some car > > (mine). > > > > For example, the 12 speakers setup would have 3 speakers per stand (floor, > > mid, ceiling speakers), each stand being in the corner of the room or, > > better, at the middle of each room side, in order to prevent that common > > room-corner-ultra-bass-boom effect. The 8 channels setup is simply the cube > > (or the "parallelepiped"), with no mid speaker. > > > > As some of you already may have built such fixed or portable setups, I was > > wondering how you managed to fix the speakers to (vertical or horizontal) > > tube stands or structures. For lights, they use tube clamps, but the weight > > is not the same when it comes to active loudspeakers. Most small form factor > > speakers have threaded mounting holes so you can put them on microphone > > stands, so I was planning to use them, but I couldn't find the "missing > > link" between the tube and the mounting holes... > > > > Thanks in advance for any tips! > > > > Frank > > _______________________________________________ > > Sursound mailing list > > [email protected] > > https://mail.music.vt.edu/mailman/listinfo/sursound > > > > > > -- > Jim Moses > Technical Director/Lecturer > Brown University Music Department and M.E.M.E. (Multimedia and Electronic > Music Experiments) > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <https://mail.music.vt.edu/mailman/private/sursound/attachments/20110630/250da75c/attachment.html> > _______________________________________________ > Sursound mailing list > [email protected] > https://mail.music.vt.edu/mailman/listinfo/sursound -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20110630/5bb0d26f/attachment.html> _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
