Fantastic ! What sort of 3d printer did you use or was it a router ? Your
own design of speaker ?

On Saturday, 31 October 2015, umashankar manthravadi <umasha...@hotmail.com>
wrote:

> my first use is to power a dodecahedron loudspeaker-three speakers to each
> amplifier. that way i will get more power out of 12 volts. i just finished
> 3dprinting the loudspeaker.
>
> i will build a portable 8 channel system with 3-inch speakers that i would
> like to take around for ambisonic demonstrations in colleges etc.
>
> i should check the specs for the ic.it is a single chip and the board
> looks well made - it says 50 watts per channel, but i would be happy with
> about 18watts into 4 ohms per channel. (it should be capable of that much -
> these are bridge outputs.
>
> umashankar
>
> > Date: Sat, 31 Oct 2015 10:42:43 +0000
> > From: augustineleu...@gmail.com <javascript:;>
> > To: sursound@music.vt.edu <javascript:;>
> > Subject: Re: [Sursound] 8 channels on 12 volts
> >
> > Ooooh for me this is very interesting. Let us know how long it lasts for.
> > Let us know what material and what speakers ! What are you using this
> for ?
> >
> > On Saturday, 31 October 2015, umashankar manthravadi <
> umasha...@hotmail.com <javascript:;>>
> > wrote:
> >
> > > dear all
> > > there have been  recent discussions on multichannel amplifiers. this
> is my
> > > solution. two cards providing 8 channels of amplification running on a
> > > lithium 12 volt battery ! (very low cost too, on aliexpress
> > >
> http://www.aliexpress.com/item/Free-Shipping-Amplifier-Board-TDA7850-4X50W-4-Channel-Car-Audio-Amplifier-Board-12V-AV-Interface/1331622462.html
> > > .
> > > i have not powered it up yet
> > > umashankar
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