I have pretty light speakers in the spherical array that I constructed, but for what its worth I was able to build a reconfigurable array extremely cheaply using tripod mic stands and threaded desktop microphone mounts. I just screwed the mounts to the bottom of the loudspeakers and screwed them onto the array.
They can be found here for $6.49 each... http://www.bhphotovideo.com/c/product/82464-REG/Atlas_AD_11BE_AD_11BE_Desk_Top_Mounting.html Josh On Thu, Jun 30, 2011 at 12:38 PM, Eric Benjamin <[email protected]> wrote: > Franck M. [email protected] wrote: >> how < > to fix the speakers to (vertical or horizontal) tube stands or >>structures > > It's hard to see how to do this without doing some fabrication. For a similar > 12-speaker system put together two years ago, Andrew Kimpel and I used large > folding speaker stands of the type frequently used by touring musicians. > These > typically can be raised to a height of 2 meters or so and have a round > finished > tube that is meant to be inserted in a socket on the loudspeaker. I > fabricated > four inclined mounts from MDF that held the loudspeakers pointing downwards at > an angle of 30 degrees, with a lip to ensure that the loudspeakers couldn't > slide forward and fall off the stands. The inclined mount is necessary > because > most speakers have substantial frequency response errors for positions away > from > the horizontal plane. The middle ring of loudspeakers was mounted on > conventional speaker stands which were located at positions between the stands > that held the upper loudspeakers. The lower loudspeakers were placed on the > floor with wedge-shaped inclined mounts to point them 30 degrees upwards. > > For a previous such installation we used a mounting system that involved four > floor-to-ceiling columns fabricated from 3" ABS pipe. The top and bottom of > the > pipe had small flat placards which rested on the floor and against the > ceiling. > Obviously the columns had to be trimmed to match the exact height of the room. > The speakers were attached to the column using Omnimount type speaker mounts > similar to these: > http://www.omnimount.com/Products/Speaker_Mounts/Stainless_Steel_Series/ > > and the columns helped to route the cables to the loudspeakers. > > It's difficult to get around the fact that there is a lot of infrastructure > with > such systems. We chose to use powered loudspeakers but it might have been > easier if they had not been powered. > > Eric Benjamin > > > > ----- Original Message ---- > From: Franck M. <[email protected]> > To: [email protected] > Sent: Thu, June 30, 2011 6:36:28 AM > Subject: [Sursound] Portable ambisonics setup, or "how do you mount speakers > on > tubes?" > > 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 > > _______________________________________________ > Sursound mailing list > [email protected] > https://mail.music.vt.edu/mailman/listinfo/sursound > -- Joshua Atkins Ph.D. Candidate Dept. Electrical Engineering Johns Hopkins University 3400 North Charles Street Baltimore, Maryland 21218 _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
