
CM-4
Passive 2-way coaxial ceiling loudspeaker with a 4" polypropylene woofer and 0.75" aluminium dome tweeter, part of the SI Series. Intended for installations in dry indoor spaces, supporting both low-impedance and 100 V line operation.
- 4" polypropylene woofer with 0.75" aluminium dome tweeter
- 30 W RMS low impedance, 15 W max. on 100 V line
- Four 100 V taps: 15, 12.5, 10 and 7.5 W
- 81 Hz – 20 kHz (-6 dB), 145° dispersion
- Black and white magnetic grilles included
- Euroblock input and parallel output
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Sprzedaj taki samOpis
The CM-4 is a passive two-way coaxial ceiling speaker built around a 4" polypropylene low-frequency driver and a 0.75" aluminium dome tweeter with a neodymium magnet. It has a bass-reflex steel enclosure with a multi-stiffened back can, and a crossover at 3.6 kHz. It is rated for 30 W RMS at low impedance (8 Ohms) and 15 W RMS on a 100 V line.
A front-accessible transformer provides four 100 V power taps from 7.5 W to 15 W and can be bypassed for low-impedance use. Equalisation is handled by an external DSP or amplifier, and filter sheets and presets are offered for a range of platforms including Lab.gruppen LUCIA, Biamp Tesira, BSS, QSC Q-SYS, Powersoft, Symetrix and others.
The speaker has a rimless design with a magnetically attached grille, and both a black and a white grille are supplied. Three mounting clamps are operated from the front and cover a clamping range of up to 40 mm. Connection is by 2-pin Euroblock input with a second Euroblock for parallel output. It is meant for dry indoor installation only.
Specyfikacja
- Marka
- HK Audio
- Model
- CM-4
- Kategoria
- Nagłośnienie › Kolumny PA
Audio
- Concept
- Passive 2-way ceiling-mounted loudspeaker
- Cabinet principle
- Bass reflex
- Power handling RMS
- 30 W (low impedance), 15 W max. (high impedance 100 V)
- Power handling program
- 60 W (low impedance)
- Power handling peak
- 120 W (low impedance)
- Nominal impedance
- 8 Ohms (low impedance)
- Sensitivity 1 W/1 m
- 85 dB
- Max. SPL average
- 102 dB (low impedance), 99 dB (15 W power tap at 100 V)
- Max. SPL peak
- 107 dB (low impedance), 103 dB (15 W power tap at 100 V)
- Frequency range -6 dB
- 81 Hz - 20 kHz
- Frequency range -10 dB
- 64 Hz - 20 kHz
- Dispersion angle -6 dB (H x V)
- 145°
- Crossover frequency
- 3.6 kHz
- Crossover slopes
- High pass: 18 dB/oct., Low pass: 12 dB/oct.
Components
- Low frequency
- 1 x 4" polypropylene loudspeaker with ferrite magnet and 1 x 1" voice coil
- High frequency
- 0.75" aluminum dome tweeter with neodymium magnet and 0.75"-voice coil with ferrofluid
- Horn
- Integrated sound guides
100 V line
- Power tap 1 at 100 V
- 15 W (670 Ohms)
- Power tap 2 at 100 V
- 12.5 W (800 Ohms)
- Power tap 3 at 100 V
- 10 W (1000 Ohms)
- Power tap 4 at 100 V
- 7.5 W (1300 Ohms)
Connectivity
- Input
- 1 x 2-pin Euroblock plug
- Output/parallel output
- 1 x 2-pin Euroblock plug, parallel connection
Physical
- Cabinet material
- Steel
- Cabinet surface
- Smooth
- Color
- Black, white (2 x front grilles included)
- Front grille
- Rimless design with magnetic mounting
- Mounting
- 3 x mounting clamps accessible from the front with max. 40 mm clamping range, 2 x brackets for steel cables/chains or for cable fastening
- Dimensions (diameter x total depth)
- 22.4 x 17.7 (17.1) cm
- Cut-out diameter
- 19.2 cm (cut-out template included)
- Weight
- 2.70 kg
- IP protection (EN 60529)
- Not specified (installation only in dry indoor areas)
- Flame resistance (IEC 60695-11-5:2016)
- Certified (SGS)
In the box
- Cover plates
- 2 x cover plate with curved cable entries or with hole for PG screw connection
- Front grilles
- 2 x (black and white)
- Cut-out template
- 1 x