Patented BroadBeamHP® waveguide technology delivers a consistent dispersion pattern for maximum intelligibility and edge-to-edge coverage. 120-watt transformer and high output for the sound reinforcement and PA markets. A 12.46-inch steel deep can for additional bass response. One 8.0 inch treated fiber driver and one compression driver with a 1.0 inch exit mounted to a proprietary cast-aluminum baffle and heat sink. Rapid-installation, blind-mount, fixed-wing mounting mechanism with constant-tension design affixes to ceiling thicknesses ranging from 6.4 mm (0.25 in.) to 48.5 mm (1.91 in.). Easy access five-position selectable tap switch for 25-, 70.7- and 100-volt applications with transformer bypass position. Separate tool-free magnetic grille and bezel assembly for ease of install and in-field painting. Steel grille with protective powder-coated finish for lasting durability. Sensitivity of 93 dB offers high-output capabilities and reduced amplification costs. UL 1480 (UEAY) and 2043 approved. Included accessories: tile bridge, Euroblock connector, conduit plate, support cable, paint mask/installation aid.

Specifications: CM890dMounting hardware included
System Type

8" Coax, in-ceiling, high SPL, ported (120 Watt transformer for 25/70.7/100 Volt or voice coil direct)

Nominal Impedance8 ohm
Impedance (minimum)5.3 ohm
Sensitivity dB @ 2.83V/1M93.0dB
Sensitivity dB @ 1W/1M (2)93.0dB
Frequency Response (± 3 dB)77 Hz - 22 kHz
Frequency Response (±10 dB)61Hz-22kHz
Max. Program Power250w
Max. Continuous Power RMS125w
Max. Power SPL @ 1 M114.0dB
Tap Selector5 Position rotary switch with transformer bypass
70.7 Volt Transformer Taps120w / 114.0dB
100 Volt Transformer Taps (dB)120w / 114.0dB
25 Volt Transformer Taps (dB)15w / 105.0dB
ColorsBlack or white
Port length2.24 in
Woofer - part18" Treated Pulp Fiber
Inputs4 Pin, 5.08 mm Euroblock for individual or daisy chain connection
Backcan Diameter296.7 mm / 11.68 in
Backcan Height316.5 mm / 12.46 in
Visible Diameter374.9 mm / 14.75 in
Visible Height27.4 mm / 1.07 in
Mounting Hole Diameter323.9 mm / 12.75 in
Weight10.9 kg / 24.03 lb
Shipping Weight13.1 kg / 28.88 lb
Accessories OptionalPre-Construction Bracket (AC-CM8-PCB), Junction Box (AC-CMi-JBOX), Tile Bridge (AC-CM8-TB), Low-Profile Flangeless Grille (GRL-6/8-FLG-BK/WH)
Packaging1 per box
Regulatory - ULApproved 1480 & 2043
Regulatory - CEApproved
Regulatory - RoHSapproved
Regulatory - IPnot planned
Regulatory - CCCapproved