Film-Tech Forum ARCHIVE: Very high frequency reproducer

This is topic Very high frequency reproducer in forum Film-Yak at Film-Tech Forum ARCHIVE.

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Posted by Jonathan Bodge (Member # 4072) on 04-09-2010, 08:59 PM:

Do any of you know what Amp/speaker or transducer that I can put together to amplify 30k hz?

Posted by Ian Parfrey (Member # 5122) on 04-09-2010, 09:25 PM:

We need a bit more info to give you what you need so if you can throw up any additional requirements that would help.

Here are a few items that MAY be what you're after.

The Motorola KSN-1016a goes from 3.3kHz to 40kHz and is a panel mount rectangular integral horn-driver.

The Motorola KSN 1188 threaded driver has a response 0.8kHz-30 kHz and screws into standard threaded horn throats.

Advantages with piezo drivers?...They (usually) require no crossover bar a limiting resistor and have high power handling.
They are usually cheap as, too.
Negatives...usually sound naff and can be harsh at high power.

Google these and see if they are what you're after.

Cheers
Ian

Posted by Tony Bandiera Jr (Member # 2365) on 04-09-2010, 09:30 PM:

Ian's suggestions are spot on.

But this begs the question: Why? Are you trying to piss off every dog in the neighborhood?
[Big Grin]

Posted by Kenneth Wuepper (Member # 1174) on 04-10-2010, 07:37 AM:

High frequency audio is a great roach and rodent repellent! [Big Grin]

Posted by Jonathan Bodge (Member # 4072) on 04-13-2010, 02:02 PM:

I'm sick of putting peanut butter in traps...