Genuine RCF Replacement Parts to restore your investment back to factory specifications

• 4,5 - inch fiberglass Inside/Outside copper voice coil

• 4000 Watt continuous program power handling

• 97 dB Sensitivity

• 28 Hz - 1 kHz Frequency range

• Dual-forced air ventilation for minimum power compression

• Dual spider designed with silicon based damping control

• BL of 30.5 Txm to provide a faster and accurate low frequency

The LF21X451 low frequency transducer is the result of many years of R&D developments with the goal of creating new levels of professional audio performance standards. This products features advancements and improvements in all the key areas of transducer technology. Incredibly linear frequency response characteristics, the highest power handling of any comparable transducer, the lowest power compression. The LF21X451 features a fibre loaded cone assembly along with a high excursion triple roll, constant geometry surround: this combination provides remarkable strength and a peak to peak maximum excursion of 54 mm. The new dual forced hyper-venting system guarantee a very efficient voice coil ventilation for minimum power compression and incredible power handling.