New to the jvc range of boomblasters is the rv nb100b portable cd boomblaster featuring twin super woofers for powerful bass sound and lightning dock for ipodriphoner bluetoothr dab tuner mixable usb rec and micguitar input with distortion effect no other boombox comes close to the overpowering dynamic bass of the jvc boomblaster with 8cm full range speakers and 40w total power the twin 13cm active super woofers on either end of the unit are symmetrically driven back to back for minimum ch