Need a 2500Hz oscillator - can anyone help?

[GasX]

For some "top secret" project my father in law is working on, he needs a 2500Hz signal at about 50W per channel to be sent to some speakers. His ability to explain his technical requirements is as equally bad as my understanding of electrical circuits, but I have offered to help him nonetheless. Can anyone tell me an easy way to generate such a signal?

 

[GasX]

Is this something an arduino or raspberry pi would be perfectly suited to?

 

[PottedMeat]

any android phone with a free 'tone/sound/frequency generator' app could do it.

could be done with a arduino or pi with a little more work

phone jack->audio amp->speakers

any audio amp rated at least 50W per channel should handle ~80Hz-20+KHz just fine

 

[C1]

There are a number of freeware audio generators. Here's one from "Tucows" which is a trusted source. (I like this one since it appears from the screen shot to have a selection for different wave forms.)
Test Tone Generator 4.2
http://www.tucows.com/preview/240287

As the above member stated, any suitably powered stereo amp should be satisfactory for driving a conventional speaker.

BTW, I remember the sweep generator I wrote code for that runs in my Commodore 64. I used to use it to test my stereo system (also check tune of musical instruments, etc.). Worked really good too. Could put out a steady wave form of selected frequency, could sweep a range of frequencies, could select the sweep speed as well as select different wave form types, adjust volume output, etc. all in real time on the fly with on screen display too.

Lots of fun writing the code.