Beyma SM-108

Beyma SM108 - 8" 150W 8 Ohm

The design concept of this low frequency transducer arises from the need of achieve a more resistant loudspeaker that matches the more and more power given by ultimate amplification systems. In order to accomplish that, almost every component of the speaker has been reconsidered. The SM-108 incorporates a 2" voice coil made with high quality materials: copper round wire with high temperature bonding strength and fiber glass former. Moreover, it features a powerful magnet system with rear air ventilation. By the other hand, its special surround guarantees the possibility of long displacements with linear behaviour. All these facts result in an 8" driver with extended and smooth low-mid frequency response, reduced harmonic distortion, good efficiency and excellent power handling (150 w AES). The SM-108 is specially recommended for woofer applications.

Key Features
 

• High power handling (150 w AES)
• 2" copper voice-coil with polyimide fiber glass former
• Optimum winding length for increased linear excursion
• Designed for high power woofer applications

Technical Specifications
 

• Nominal chassis diameter 8"
• Impedance 8 ohms.
• Minimum impedance 7.6 ohms.
• Power capacity 150W AES
• Program power 300W
• Sensitivity 95 dB 2.83v @ 1m @ 2pi
• Frequency range 65 - 6000 Hz
• Recom. enclosure vol. 10 / 30 l
• Voice coil diameter 2"
• Magnetic assembly weight 2.8 kg. 6.17 lb.
• BL 13
• MMs 24g.
• Voice coil length 15 mm.
• Air gap height 7 mm.
• X Damage (peak to peak) 22 mm.

THIELE SMALL PARAMETERS
 

• Fs 69 Hz
• Re 6.3 ohm
• Qms 7.01
• Qes 0.39
• Qts 0.37
• Vas 16 l
• Cms 225 micro m / N
• Rms 1.5 kg / s
• Efficiency % 1.3
• Sd 0.022 sq m
• Xmax 4 mm
• Vd 87 cu cm
• Le @1 kHz 1.5 mH

CONSTRUCTIVE DETAILS
 

• Net weight 3.1 kg 6.83 lb
• Total weight 3.25 kg 7.15 lb
• Magnet Ferrite

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