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

[John L Marshall]

This looks like a driver only. A horn is required. The horn functions as an
acoustic transformer. This is how the efficiency is obtained.

The other speakers that you used in the past, was there a baffle of some
sort to prevent sound eminating from the rear of the cone from cancelling
the sound eminating from the front?


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: Wednesday, November 06, 2002 2:10 PM
Subject: Re: [sdiy] Slightly OT: really loud but light weight speakers


> John, Peter, Oren & Stephen: thanks for the suggestions!!
>
> Finding a loud horn with a rolloff under 2kHz wasn't easy, but I
> managed to find a horn driver with a freq. range of 500-18kHz:
> http://www.etronics.com/product.asp?stk_code=pylpdb512
>
> Any idea if this thing would be much quieter if we didn't attach a
> horn to it? The amount of space in the bot is quite limited as well...
>
> Joris
>