Feature●ESS Genuine Factory HEIL AMT III Speaker Ribbon Diaphragm, 1.5625" x 2.9375", 689-1111●Original factory ESS part. Hand folded, USA Made●SUPERIOR quality, LARGEST selection, and the BEST prices!●FREE technical support. FAST & FREE shipping to any USA address.●To get the BEST quality repair parts, be sure to buy ONLY from SS Audio and Simply Speakers. Thank you!Description ESS Genuine Factory HEIL AMT III Speaker Ribbon Diaphragm, 1.5625" x 2.9375", 689-1111