AR-218B

 

 

 

  • The vented ducts of the AR-218B is so designed it works like a regular vented enclosure under normal situation, the air within the enclosure act as air cushion when transient strong signal applied. (See Figure 112)
  • For an enclosure housing two 18” units, it is only slightly larger than the two elements when viewed from the front. It is very compact

 

 

  • Frame is die cast alloy
  • The cone is a special formula of pulp and glass fiber. The depth of the cone is rather shallower with reinforcement ribs for better reproduction of low-frequency
  • Surround and spider are stiffer to increase the mechanical stiffness
  • The cone is treated with inflammation resistant agent
  • The diameter of the voice coil is 4-inch edge wound with flat copper wire on a Kapton former.
  • The magnet is made from y30 high flux strontium ferrite weights 10.75kgs.

 

The Crossover Network

 

Applications and Technical Specifications

 

FREQUENCY RESPONSE

40 Hz ~ 280 Hz (±3 dB )/ 25 Hz ~ 310 Hz(-10 dB)

SENSITIVITY (1W/1m)

103 dB(40 Hz~280 Hz)

NOMINAL IMPEDANCE

4 Ohm

POWER RATING

1200 W (AES)

LF COMPONENTS

2×18〞woofer (4″voice coil)

CALCULATED OUTPUT (MAX)

134 dB SPL, 140 dB SPL peak

 

DIMENSIONS (H×W×D)

1050×580×700 (mm)

WEIGHTS

80 (kg)

CONNECTORS

2 Neutrik NL4MP connectors

 

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