BEYMA SM-118N - 18" SPEAKER 

THE BEYMA SM-118N HANDLES 800 WATTS W/ AN XMAX OF 7.25MM FOR TIGHT LOWS DOWN TO 40HZ!

Beyma SM-118NBeyma SM-118N

BEYMA SM-118N

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Item Price: $299.95

WOOFER MODEL  - SM-118N

Specifications

Nominal Basket Diameter

18" / 460mm

Impedance

8 ohms

AES Power Rating

400 Watts

Program Power  800 Watts  

Frequency Response

40Hz - 4.0kHz

Sensitivity (1W/1m)

97dB

Voice Coil Diameter

3" / 77mm

Recom. Enclosure Volume 2.12-5.3 ft3  /  60-150 Liters
Voice Coil Length 17.5 mm
Air Gap Height 7 mm
X Damage (peak to peak) 30 mm
Magnetic Assembly Weight 11.0 lb. / 5.0 kg.

Mounting Information

Overall Diameter 18.2" / 462mm
Bolt Circle Diameter 17.24" / 438mm
Baffle Cutout Diameter 16.34" / 415mm
No. Of Mounting Holes 8
Volume Displaced By Driver 0.26 ft3  /  7 Liters
Overall Depth 7.36" / 187mm
Net Weight 15.43 lb. / 7 kg.
Shipping Weight 17.63 lb. / 8 kg.

Materials

Basket Die Cast Aluminum
Cone High Stiffness Paper
Spider Cotton
Metal Parts Anti-Corrosion Coated
Surround Treated Cloth
Voice Coil Copper Round Wire - Apical Former
Magnet High Curie Temperature Ferrite

Thiele-Small Parameters

Resonant Frequency (fs) 42 Hz
Impedance (Re) 6.3 ohms
Coil Inductance (Le) 1.1 mH
Mechanical Q (Qms) 5.5
Electrical Factor(Qes) .65
Total Q (Qts) .58
Comp. Equivalent Vol. (Vas) 7.27 ft3 / 206 Liters
Voice Coil Overhang (Xmax) 7.25 mm
BL Factor 18.3 N/A
Effective Surface Area (Sd) .1150m2
Diaphragm Mass (Mms) 130 Grams
Reference Efficiency 2.3%
Displacement Volume 834 cm3

Frequency Response Graph

Beyma SM118N Frequency Response Graph

Impedance Graph

Beyma SM118N Impedance Graph
Mounting Dimensions
Beyma SM118N Mounting Dimensions

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