6x9" oval, 3.16oz magnet, 300 - 3000 Hz range. Magnet weight depends on power speaker is designed to handle. Vy 73 CHuck K3FT Sponsored by the City of Tempe Listserver Submissions: heath at listserv.tempe.gov Listserver Subscription: listserv at listserv.tempe.gov - "subscribe heath 'name' 'call'" Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff heath"