The 8MB400 mid-bass transducer has been developed in response to a specific market requirement for a 200 mm (8 in) midbass driver which combines excellent linearity with good efficiency and power handling capabilities. It is primarily intended for use as a midbass driver in compact 2-way reflex enclosures with a 1 inch compression driver or tweeter but as a result of its versatile characteristics, it
can also be used in multiway systems.

The curvilinear, treated paper cone is formed using a unique wood pulp composition designed to achieve the best possible rigidity and stiffness. This is carried by a polycotton multiroll surround to provide increased excursion whilst controlling break up modes.

Features

• 95 dB SPL 1W / 1m average sensitivity
• 51 mm (2 in) Interleaved Sandwich Voice coil (ISV)
• 280 Watt AES power handling
• Improved heat dissipation via unique basket design
• Weather protected cone
• Suitable for compact two way and multiway systems

GENERAL SPECIFICATIONS

• Nominal Diameter: 200 mm (8 in)
• Rated Impedance: 8 Ohm
• AES Power: 280 W
• Program Power: 400 W
• Peak Power: 800 W
• Sensitivity: 95 dB
• Frequency Range: 55 ÷ 5200 Hz
• Power Compression @-10dB: 0,5 dB
• Power Compression @-3dB: 1,4 dB
• Power Compression @Full Power: 2,3 dB
• Max Recomm. Frequency: 3000 Hz
• Recomm. Enclosure Volume: 10 ÷ 40 lt. (0,35 ÷ 1,41 cuft)
• Minimum Impedance: 6,1 Ohm at 25°C
• Max Peak To Peak Excursion: 19 mm (0,75 in)
• Voice Coil Diameter: 51 mm (2 in)
• Voice Coil Winding Material: aluminum
• Suspension: M-roll, Polycotton
• Cone: Curvilinear, Treated paper

THIELE SMALL PARAMETERS

• Fs: 64 Hz
• Re: 5 Ohm
• Sd: 0,0227 sq.mt. (35,19 sq.in.)
• Qms: 3,23
• Qes: 0,43
• Qts: 0,38
• Vas: 23,9 lt. (0,85 cuft)
• Mms: 18 gr. (0,04 lb)
• BL: 9,3 Tm
• Linear Mathematical Xmax: ± 5,8 mm (± 0,23 in)
• Le (1kHz): 0,96 mH
• Ref. Efficiency 1W@1m (half space): 93,7 dB

MOUNTING INFORMATIONS

• Overall diameter: 210 mm (8,27 in)
• N. of mounting holes: 6
• Mounting holes diameter: 6 mm (0,23 in)
• Bolt circle diameter: 195 - 198 mm (7,68 - 7,80 in)
• Front mount baffle cutout ø: 186 mm (7,32 in)
• Rear mount baffle cutout ø: 184 mm (7,24 in)
• Total depth: 99,5 mm (3,92 in)
• Flange and gasket thickness: 14,5 mm (0,57 in)
• Net weight: 3,6 kg (7,95 lb)
• Shipping weight: 3,92 kg (8,65 lb)
• CardBoard Packaging dimensions: 235 x 235 x 150 mm (9,25 x 9,25 x 5,91 in)