Lowell R1810-72S 8 in Speaker/Grille Assembly

The Lowell R1810-72S is the screwdriver-adjust version of Lowell's 8" ceiling speaker assembly: the 810 dual-cone driver, a TLM-572 25V/70V transformer and a WB-8 grille with a recessed volume control in the centre. A screwdriver slot rather than a knob is the right call in a corridor or a lobby, where the level should be set once by the installer and left alone.

The driver takes 15 W RMS on a 10 oz ceramic magnet, running 54 Hz to 11.6 kHz (+/-6 dB) at 97.9 dB average sensitivity, 1 W/1 m. Transformer taps sit at 0.25, 0.5, 1, 2 and 5 W. The grille is 12.875" round screw-mount steel in white powder coat. Order the backbox separately - the UL listing applies when it is used with an approved one.

Driver	Lowell 810, 8" dual cone
Power Handling	15 W RMS
Magnet	10 oz ceramic
Frequency Response	54 Hz - 11.6 kHz (+/-6 dB); 50 Hz - 20 kHz (+/-6.6 dB)
Sensitivity	97.9 dB average, 1 W/1 m
Transformer	Lowell TLM-572, 25V/70V, taps at 0.25, 0.5, 1, 2 and 5 W
Grille	Lowell WB-8, 12.875" round screw-mount steel with screwdriver-adjust volume control
Finish	White powder coat
Compliance	TAA compliant, UL Listed when used with an approved backbox, USA-certified steel
Country of Origin	Made in USA with US and global components