BMS BMS4544L 1″ Driver 4544 80 W 8 Ohm

• Unique Patented Design
• 113 dB Sensitivity 1 W / 1 m
• 1.3 kHz Crossover
• Extended high frequency response up to 20 kHz
• Small Size and low Weight
• 44.4 mm Sandwich in- and outside the Voice Coil

BMS 4544 is a powerful 1" professional compression driver that delivers excellent sonic quality in a small package. The BMS exclusive voice coil technology employs light weigh Cooper Clad Aluminium wire wound inside and outside of the Kapton ™ former to improve the heat dissipation.

This technology dramatically increase the acoustic output and reliability of the drive and minimizes the power compression. The BMS 4544 - 1" compression driver is designed wide variety of applications in high quality professional reinforcement systems and stage monitors.

1” high frequency compression driver, titanium
diaphragm, flat aluminium wire voice coil, low distortion,
extremely good response from 1.5 kHz. to 18 kHz.

Specifications1
Throat Diameter 25 mm. (1 in.)
Nominal Impedance 8 Ω
Minimum Impedance 7.6 Ω
Power Handling
(1500 –20000 Hz)
Nominal2 60 W
Continuous Program3 120 W
Sensitivity (1W/1m)4 106 dB
Frequency Range 1 – 18 kHz
Recommended Crossover5 1.5 kHz
Voice Coil Diameter 44 mm. (1.7 in.)
Winding Material Aluminium
Inductance 0.11 mH
Diaphragm Material Titanium
Flux Density 1.7 T
Also available in 16 Ω, data upon request

Mounting and Shipping Informations
Two M6 holes 180° on 76 mm. (3 in.) diameter
Three M6 holes 120° on 57 mm. (2.2 in.) diameter
Overall Diameter 134 mm. (5.3 in.)
Depth 68 mm. (2.7 in.)
Net Weight (1 unit) 2.9 Kg. (6.4 lb.)
Shipping Weight (4 units) 12.5 Kg. (27.5 lb.)
Shipping Box (4 units) 300x160x180 mm.
(12x6.3x7.1 in.)
1 Driver mounted on B&C ME 45 horn.
2 2 hours test made with continuous pink noise signal (6 dB crest factor) within
the specified range . Power calculated on rated minimum impedance.
3 Power on Continuous Program is defined as 3 dB greater than the Nominal
rating.
4 Applied RMS Voltage is set to 2.83V for 8 ohms and 4V for 16 ohms Nominal
Impedance. Average SPL from 1000 to 18000 Hz.
5 12 dB/oct. or higher slope high-pass filter.

Driver 1" 20W, 107dB