[sdiy] Slightly OT: really loud but light weight speakers

[John L Marshall]

Plastic Piezo Horns. Directional but efficient.


Take care,
John
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Pacific Northwest DIY Synthesizer meeting, January 18, 2003
See: www.sound-photo.com
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----- Original Message ----- 
From: "Joris" <joris at joris.org>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, November 05, 2002 2:01 PM
Subject: [sdiy] Slightly OT: really loud but light weight speakers


> 
> Together with a friend I'm building a remote controlled combat robot
> with built in sample player, amp and two speakers.
> 
> The speakers should be as loud as possible (the battle arena is noisy)
> and still weigh very little (there is a weight limit for the bot).
> We've reserved 2 kg (4.4 pounds) for the pair of speakers. We're
> planning to filter out the low frequencies and use some kind of
> speakers intended for mid and high frequencies.
> 
> I don't know much about speakers though... in our previous robots
> we've used car speakers but they tend to be either too heavy or too
> quiet. Any suggestions would be much appreciated!
> 
> Joris
>