Features

Very stiff lightweight paper cone with unique “MicroSphere” coating consisting of micro ceramic hollow spheres embedded in a polymer layer offers best possible impulse response without any sound colouration

Special shaped rubber surround for long linear cone excursion

The new, hemispherically shaped dustcap optimizes the frequency response in the upper midrange area

Extremely rigid aluminum diecast basket

24 carat gold-plated screw terminals for lowest contact resistance

Powerful and precisely machined magnet system for high efficiency in combination with excellent magnetic flux linearity

Large pole-piece ventilation hole significantly reduces compression effects

Rugged magnet cover with BRAX lettering for perfect magnet protection

Technical data

Power RMS / max. - P - 100 / 150 Watts

Impedance - Z - 3 Ω

DC resistance - Re - 3.0 Ω

Frequency response - 40 Hz - 4,000 Hz

Resonance frequency - Fs - 52 Hz

Mechanical Q factor - Qms - 6.00

Electrical Q factor - Qes - 0.57

Total Q factor - Qts - 0.52

Compliance - Cms - 603 μm/N

Equivalent air volume - Vas - 16.3 L

Force factor - B*I - 5.2 Tm

Efficiency 1 W / 1 m - SPL - 88 dB

Cone area - Sd - 139 cm²

Moving mass - Mms - 15.3 g

Cone material - paper cone with “MicroSphere” coating consisting of micro ceramic hollow spheres embedded in a polymer layer

Mechanical resistance - Rms - 0.84 kg/s

Voice coil diameter - ø - 37 mm

Voice coil winding height - 14 mm

Max. linear excursion - Xmax - +/- 4.0 mm

Outer diameter - ø - 166 mm / 6.5"

Installation diameter - ø - 142 mm / 5.6"

Installation depth - 68.2 mm / 2.7" 

Recommended enclosure volumes  

Sealed box  

Net volume - 8 L

Lower limiting frequency (-3dB) - 69 Hz

Vented box  

Net volume - 15 L

Port diameter - ø - 60 mm / 2.4"

Port area - 28 cm²

Port length - 19 cm / 7.5"

Port tuning frequency - Fb - 45 Hz

Lower limiting frequency (-3dB) - 48 Hz