Hello mga Sirs,

Good day to all! I recently bought a 2nd hand Ryan Audio subwoofer from a friend but it didn't come with specs... the speaker itself doesn't the have the specs, there's no wbesite for the manufacturer and the owner isn't sure what its specs are. Is there a way to know the specs of a speaker without the documentation that came with it?

Thank you.

Regards,
M. Matatquin