Why not use a test cd with some frequency sweeps on it?
I'm sure CPC used to do them.

Brian

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Brian Gaff....Note, this account does not accept Bcc: email.
graphics are great, but the blind can't hear them
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"Davy" wrote in message
. 109.145...
I recently bought a Yamaha YST-SW40 active woofer. I
certainly adds to the bass range of my bookshelf system.
But, I might be imagining this,the bass notes seem to be
all the same frequency. Just boom boom boom - all the
same.

Can anybody recommend a track I can use to check it; that
has a bass line that uses different notes?

DAvy