DFM-2544R00-08

Transducer Size (Millimeters)25.4
DC Resistance6.09
Resonant Frequency784.22
Half Space Sensitivity105.29
Rated Noise Power60
Test Spectrum Bandwidth1.5k Hz-15k Hz

Transducer Size1
DC Resistance6.09 Ω±5.0%
Resonant Frequency784.22 Hz15%
Half Space Sensitivity @ 2.83V105.29 dB±1.01
Sensitivity @ 1W/1m104.6 dB±1.01
Rated Noise Power (IEC 268-5 18.1)60 W
Test Spectrum Bandwidth1.5k Hz-15k Hz 12 dB/Oc
Effective Piston Area16.2 cm2
Moving Mass0.3 g
Motor Force Factor2.06 T•m
Voice Coil Inner Diameter44.4 mm
Gap Height3.5 mm
Maximum Linear Excursion0.3 mm
Ferrofluid Type
Minimum Impedance6.89 Ω±7.5%
Voice Coil Inductance0.04 mH
Mechanical Q Factor2.02
Electrical Q Factor2.03
Total Q Factor1.01
Ratio774.15 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance143.6 μm/N
Effective Cone Diameter4.54 cm
Motor Efficiency Factor0.7 (T•m2)/Ω
Voice Coil Former MaterialTIL
Transducer Mass1.8 Kg
Equivalent Volume0.05 L

This 1.75 inch diaphragm 1inch exit compression driver is for use in high quality professional sound reinforcement systems. The magnet system was designed for high sensitivity while keeping the weight and cost to a minimum. The 3-slot phasing plug and aluminum wire voice coil give improved HF energy. The titanium diaphragm is coated with a light, thin layer of unique damping material which results in a smoother sound, especially when driven hard. All of the materials resist environmental factor of heat, vibration and aging ensuring many years of stable performance.