very good - can you tell us where to find the amplifier cards? On Thu, Jun 30, 2011 at 11:50 AM, umashankar mantravadi < [email protected]> wrote:
> > 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 > -- 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... 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