PROUDLY MADE IN THE USA! If you want a loudspeaker that's AMERICAN MADE and up to the job of complementing the components in your original Cerwin Vega boxes, this is it! Severe duty, heavy power loudspeaker for replacing missing woofers in vintage Cerwin Vega cabinets B-36, L-36, SL-36 or any cabinet where foam edge woofers were used. 1,000W/rms, 2,000W/program or 4,000W/peak. "Elephant Motor copy" using original factory L-1815 speaker cone with vintage "Cerwin Vega style technology" updated for the modern age. Use with any amplifier with up to 1,700 watts RMS per channel. Hole size required; 16 5/8 inches. Vintage cabinet woofer holes are usually 17 inches. Huge, 4 layer, 4 inch, "pre-cooked" voice coil makes for brutal, high power bass output in folded horn or ported cabinets. Larger 25mm thick magnet with a hefty bump on the back plate protects against damage due to sonic accidents. Sound character; very high efficiency, sub-bass style. 100% USA made, just like old school. This loudspeaker will revitalize any cabinet cut for 18 inch loudspeakers. Please check the quality of the bracing inside your box and make sure that there are no unsupported panels! Insufficiently braced cabinets can possibly suffer busted glue joints! FREE SHIPPING IS FOR CONTINENTAL US ADDRESSES ONLY! All others, including Alaska, Hawaii and other US territories are actual cost. Please contact us for a shipping estimate before you order! Thank you for looking! Peace!