SB Acoustics SB12NRXF25-4, 4" midrange - 4 ohm

This is a long awaited 4" midrange from SB. This unit features a treated Kapok cone with foam surround.  The foam surround increases sensitivity and eliminates the resonance at the cone attachment.

While listed as a midrange, this unit has a respectable 5mm linear excursion and could be used as a woofer in low powered mini monitors, line arrays or LCD sound bars.