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RCF LF21N451 21

RCF LF21N451 21" Neodymium Woofer

Sale Price : $184.54


Product Description
Rcf's LF21N451 is specially designed to provide powerful and accurate sub-bass frequencies with low distortion and minimal power compression. Its voice coil length was engineered to improve excursion and linearity at very low frequencies. The LF21N451 uses a unique RCF-developed carbon fiber/nylon/cellulose composite pulp that reinforces and improves the cone structure's rigidity. This new cone structure and the large triple roll surround/double silicon spider system ensure excellent control and make the cone resistant to deformation caused by very large displacements and pressure created by the transducer’s high excursion behavior. A fully optimized T-pole design generates the minimum amount of flux modulation in the magnetic gap. The LF21N451 excels in applications where light weight and high power handling are required. Specifications: *Power handling: 1,500 watts RMS/3,000 watts continuous program *VCdia: 4.5" *Le: 3.0 mH *Impedance: 8 ohms *Re: 5.6 ohms *Frequency response: 30-1,000 Hz *Fs: 31 Hz *SPL: 98.5 dB 1W/1m *Vas: 13.24 cu. ft. *Qms: 6.0 *Qes: 0.27 *Qts: 0.26 *Xmax: 13.2 mm *Dimensions: A: 21.5" B: 20.1" C: 9.8".
Designed for concert systems
4.5" diameter inside/outside copper voice coil
3,000 watt continuous program power handling
Dual forced-air ventilation for minimum power compression
Double spider incorporates silicon damping