Le Sat, 02 Jul 2011 21:06:39 -0500, "Michael Graves" <[email protected]> a écrit :
> On Thu, 30 Jun 2011 14:41:23 -0400, jim moses wrote: > > >very good - can you tell us where to find the amplifier cards? > > In the US Parts Express has a series of thes amplifier cards. > > A 4 ch 100w/c card without PSU runs $52. > > http://www.parts-express.com/pe/showdetl.cfm?Partnumber=320-302 > > Michael The same module is $36 directly from sureelectronics; http://www.sureelectronics.net/goods.php?id=960 but the shipping probably cost more. Last year I ordered a few 2X15W T-amp modules at $12 each. They are adequate for a domestic near-field setup, and I can drive them directly from the power supply of my (silent) desktop PC. Here's an interesting blog about those modules: http://www.justblair.co.uk/sureta2024/index.html -- Marc > > >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... > >URL: > ><https://mail.music.vt.edu/mailman/private/sursound/attachments/20110630/40235d7a/attachment.html> > >_______________________________________________ Sursound mailing list > >[email protected] > >https://mail.music.vt.edu/mailman/listinfo/sursound > > > > -- > Michael Graves > mgraves<at>mstvp.com > http://www.mgraves.org > o713-861-4005 > c713-201-1262 > sip:[email protected] > skype mjgraves > Twitter mjgraves > > > > _______________________________________________ > Sursound mailing list > [email protected] > https://mail.music.vt.edu/mailman/listinfo/sursound > _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
