5FR delivers a good balance of low-mid frequencies. Extended frequency response opens opportunity do design compact audio systems with sizable amounts of low frequencies, yet wit great clarity in mid to high frequency region. The optimized behavior of this driver in the mid-frequency region allows the audio engineers design simplified passive crossovers or DSP without the needs for large equalizations. The magnetic structure was designed around large high-grade ferrite magnet. All steel parts are extensively coated to cope with the most demanding environments. The cone paper pulp and surround were fully developed by REDCATT engineers and address all major break-up modes. The speaker has improved off-axes frequency response. The newly designed steel basket with front and rear gaskets allow this mid-woofer to be mounted from the front and rear.