BEYMA 18G40 - 18" HIGH POWER WOOFER 

EXCELLENT 18" SUBWOOFER WHEN YOU NEED A VERY DEEP WARM BASS SOUND DOWN TO 25HZ!

BEYMA 18G40

No Longer Available

WOOFER MODEL  - 18G40

Specifications

Nominal Basket Diameter

18" / 460mm

Impedance

8 ohms

AES Power Rating

700 Watts

Program Power  1,400 Watts  

Frequency Response

25Hz - 1.5kHz

Sensitivity (1W/1m)

97dB

Voice Coil Diameter

4" / 100mm

Recom. Enclosure Volume 2.8-7.0 ft3  /  80-200 Liters
Voice Coil Length 23 mm
Air Gap Height 9.5 mm
X Damage (peak to peak) 33 mm
BL Factor 22.5 N/A
Magnetic Assembly Weight 19.8 lb. / 9.0 kg.

Mounting Information

Overall Diameter 18.11" / 460mm
Bolt Circle Diameter 17.24" / 438mm
Baffle Cutout Diameter-  
- Front Mount 16.34" / 415mm
- Rear Mount 15.75" / 400mm
No. Of Mounting Holes 8
Volume Displaced By Driver 0.46 ft3  /  13 Liters
Overall Depth 7.82" / 198.5mm
Net Weight 25.3 lb. / 11.5 kg.
Shipping Weight 28.6 lb. / 13 kg.

Materials

Basket Die Cast Aluminum
Cone Waterproof Paper Cone
Surround Treated Cloth
Voice Coil Edgewound Copper Wire
Spider Nomex/Polycotton Dual Spider
Magnet High Currie Temperature Ferrite

Thiele-Small Parameters

Resonant Frequency (fs) 31 Hz
Impedance (Re) 5.9 ohms
Coil Inductance (Le) 3.0 mH
Mechanical Q (Qms) 12.7
Electrical Factor(Qes) .42
Total Q (Qts) .41
Comp. Equivalent Vol. (Vas) 11.41 ft3 / 323 Liters
Voice Coil Overhang (Xmax) 7 mm
Surface Area of Cone (Sd)m2 0.1300m2
Reference Efficiency 2.2%
Displacement Volume (Vd) 910 cm3
L.F. Response: Bass Reflex Cabinet-Vb=150L, Fb=35Hz

Frequency Response & Distortion Curves
Mounting Dimensions

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