TOA Q HY BC2 Shallow Back Can Nikon F Mount SIGMA has developed their own SIGMA has developed their own A1 proprietary Modulation Transfer Function (MTF) measuring system using 46 megapixel Foveon direct image sensors Manfrotto “Pico Clamp” helps the photographer and videographer to experiment new solutions offering the possibility to safely attach the equipment to very thin bars having a diameter from 8 to 15 mm The Q HY BC2 will allow the use of TOA’s F 2352SC ceiling speaker in a space where a common speaker back can combination will not fit due to depth considerations Four ‘2 way‘ knock outs spaced evenly around the body (located 2” from the back edge of the enclosure to the centre of the knock out) One ‘2 way’ knock out centred on the back of the enclosure Two 7 8” knock outs on 4 1 2” diameter on back of the enclosure