HS-1661 Matching Speaker for HW-101 and HR-1680 For best performance - matching speaker for HW-101, HR-1680 * Features a big 5"x7" oval speaker * An easy-to-build kit * Rugged, lightweight aluminum cabinet * Response tailored for SSB and CW The Heathkit HS-1661 Speaker is designed to match the HW-101 Transceiver and the HR-1680 as well as many older Heathkit transceivers and receivers. It features a big 5" x 7" oval speaker with a 3.16 oz magnet offering 300 to 3000 Hz frequency response for best SSB and CW reception. The green spatter-finish cabinet is constructed of rugged light weight aluminum and measures 6 5/8" H x 9" W x 5 5/8" D. The easy-to-build kit includes necessary cable and solder. Kit HS-1661, Shpg. wt. 5 lbs 29.95 Data Collected and Verified by KB9JJA