TOA Back Box For PC-580R And PC-580RV Sigma SA-Mount 70-200mm F2

70-200mm F2

or whatever your day calls for

Speaker Component 200 mm (8”) dual cone type

Swivel Block: three big carved pneumatic wheels

Treble attenuation switch

TOA Back Box For PC-580R And PC-580RV Sigma SA-Mount 70-200mm F2The BB 580W Round Flush Mount Back Box is a metal case that can be attached to TOAs PC 580RU RVU flush mount ceiling speakers for flush mounted applications. Specifications Knockouts Four 2 way knock outs spaced evenly at 90 degrees around the body , 2 from back, Four mounting straps Finish Galvanneal (satin coat) steel construction, Unpainted Anti resonance spray coating applied to the interior of the enclosure Dimensions 10 inner diameter at the