Architech SC-800F Frameless Commercial Loudspeaker: * 8" in-ceiling/wall commercial loudspeaker with frameless grill * Suitable for both commercial and residential use * Integrated transformer mounting location for 70/100V transformers * High-efficiency and value with great low profile perforated steel grill and fast toggle mounting * 8" full range dual cone with open back * All-weather frameless grill is magnetically attached with round or square option * Use either the round grill model MGR-8F or square grill model MGS-8F * Frame and grills may be painted to match mounting surface * Impedance: 8 Ohms * Quick spring post terminals * No soldering or crimping required * Dog ear mounting * Proven mounting system