The Quam UL-5 or UL-7 is a UL Listed (1480) loudspeaker assembly, transformer, line supervision capacitor and back box used as a fire alarm signaling device.

The Quam UL-6 or UL-8 is a UL Listed (1480) loudspeaker assembly, transformer, and back box used as a general (non-fire alarm) signaling device.

The finish for UL-5 through UL-8 is a white baked epoxy hybrid.

The Quam UL-10 is a complete sound masking loudspeaker assembly with 8" frame loudspeaker with fire retardant cone, 70.7V transformer, dust-proof perforated steel baffle and 690 CID / 11.1 L bi-metal composite Quiet Steel® back box. The finish is a white baked epoxy hybrid.