Check the listing for details. 15" Gauss woofer subwoofer speaker 2,000W peak. ALL NEW 4583XRO PARTS!. Condition: Used. Listed at 299.00 USD. These are Gauss woofers, 5600 series or 5800 series that have been stripped down to their castings and restored with functionally and historically accurate 4583XRO kits. Where possible, the original spider rings were completely stripped and rebuilt with totally new moving parts including voice coils, spiders and tinsel leads. In other cases we made spider rings out of casting resin and outfitted those will all new terminals (Brass), solder lugs and tinsel leads. Originally Gauss 4 inch coil speakers were rated at 400 watts continuous RMS and they would most certainly do that and more! These, along with improvements in adhesives, tinsel leads and voice coils will probably do 500 watts RMS and 2 killowatts on peaks, without electrical damage. As of this listing I have 8. Six are Alnico and two are Ceramic magnet based. While JBL speakers will sing you a sweet lullaby at any level, Gauss speakers tended to beat you senseless over the head until you were forced to submit! You'll love 'em! These woofers are not for collectors, but for working musicians or home music enthusiasts that like their music incredibly loud for hours on end! If I can do it before they're sold, I will repaint the speakers original Gauss Almond White and a Satin Black on the magnet caps, so they look as good as they sound! The discount shipping rate is for continental US addresses only. All others are actual cost! Thank you for checking out my listing! PEACE!