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B&W ZZ13137

Pair of B&W ZZ13137 tweeters

B&W ZZ12831 is a tweeter used in B&W DM 601 S3 systems.

Driver Properties Electrical Parameters
Membrane Shape Dome   Nominal Impedance 4 Ω
Membrane Material Aluminum alloy Rated Power N/A
Surround Polymer Sensitivity 92 dB/W/m
Voice Coil Diameter 25mm Factory Crossover Frequency 4 kHz
Magnet System Ferrite DC Resistance 3.1 Ω
Ferrofluid NO Nominal Resonance Frequency 2kHz
Front Plate Material Plastic   Linear Excursion N/A
Rear Chamber YES Voice coil inductance 0.45 mH

My Measurements

                               B&W ZZ12831  SPL Responce at 1m on axis and 15 30 deg off axis

Frequency response at 1m with 2.83 V input RED - on axis, BLUE - 15 º off axis, GREEN - 30 º off axis

B&W ZZ12831 Burst decay Responce

Burst decay response, measured at 1m on axis

B&W ZZ12831

The impedance curve


Using a proper crossover, very smooth frequency and harmonic response can be achieved.

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