Visual Sound, Inc. UL Listed Backbox-Recessed-4in Spkr, Steel, 10in Dia x 6.75in D ULDX104

Lowell Manufacturing Company GENERAL Signaling (WB4-series): (approved backbox for round grille assembly) provides very high quality music or paging for hotels, restaurants, department stores, airport terminals and similar venues. Listed under UL1480 General Signaling and UL2043 for plenum use. Assembly includes speaker (4A30: 30W coaxial with 10 oz. LF and 2 oz. HF magnets), transformer (TLM870: tap selections at 1, 2, 4, 8W @ 70V) and attached grille (screw-mount or torsion-mount, round steel, white). IMPORTANT: to maintain UL-Listing, assembly must be used with approved UL-Listed backbox and compatible control equipment. Order separately. Speaker size: 4"