Owner's Manual

PRO.BOSE.COM 1 OF 4
TECHNICAL DATA
DesignMax DM8C
in-ceiling loudspeaker
Technical Specifications
SINGLE LOUDSPEAKER PERFORMANCE
Frequency Response (–3 dB)
(1)
60 – 20,000 Hz
Frequency Range (–10 dB)
(1)
52 – 20,000 Hz
Nominal Coverage Angle (1 – 4 kHz) 135° conical
Nominal Coverage Angle (1 – 10 kHz) 120° conical
AES transducer test
(4)
Bose extended-lifecycle test
(5)
Power Handling, long-term continuous 150 W 125 W
Power Handling, peak 600 W 500 W
Sensitivity (SPL/ 1W @ 1 m)
(2)
91 dB 91 dB
Calculated Maximum SPL @ 1 m
(3)
113 dB 112 dB
Calculated Maximum SPL @ 1 m, peak 119 dB 118 dB
Crossover 1.5 kHz (passive 2-way crossover)
Loudspeaker EQ Not Required, Bose EQ voicing and SmartBass processing available
Recommended High-Pass Protection 48 Hz with recommended 24 dB / octave filter
Overload protection Resistor-network power reduction with automatic reset
Transformer taps
70V: 2.5, 5, 10, 20, 40, 80 W, bypass
100V: 5, 10, 20, 40, 80 W, bypass
TRANSDUCERS
Low Frequency 1 x 8-inch woofer (203 mm)
High Frequency 1 x 1-inch compression driver, coaxial center-firing (25 mm)
Nominal Impedance 8 ohms (transformer bypass)
Product Overview
With coaxial two-way drivers, the 150-watt DesignMax
DM8C loudspeaker delivers powerful SPL suitable for
foreground music — along with premium aesthetics
that complement any commercial sound installation.
The DM8C features a two-way, 8-inch woofer and
a center-firing coaxial 1-inch compression driver,
delivering a 52 Hz – 20 kHz frequency range. The
in-ceiling DM8C is installed easily via QuickHold
mounting arms.
Key Features
Combine DesignMax models to complete any design, big or small — 12 loudspeakers to mix and match, from 2-inch, low-profile
models to 8-inch, high-SPL compression-driver loudspeakers and outdoor-rated options.
Deliver rich lows and clear, intelligible highs with coaxial two-way drivers — no DSP or EQ required. For even better sound, use
select Bose DSPs and amplifiers to enable Bose loudspeaker EQ and SmartBass processing, which expands performance and
response at any listening level.
Blend with any room design with elegant form factors, minimum-bezel grilles available in black or white, and removable logos.
Reduce installation time with the patented QuickHold mounting system, which also reduces strain, hassle, and the chance of
product damage.
Install easily with industry-standard accessories — all models include Euroblock connectors; in-ceiling models include plenum-
rated backcans, tile bridges, and front-access audio wiring that makes installation and troubleshooting easier.
Deliver high SPL for demanding applications, including high-ceiling venues such as ballrooms, concourse, and convention centers.