The R-1650-CSM employs a 6.5-inch polymer-cone woofer and a large motor structure for high sensitivity and strong bass output. Dual voice coils sum the low frequencies from a stereo input to mono. Upper frequencies are handled individually for the two channels by a coaxially mounted dual-tweeter array preserving the stereo effect.

The speaker’s mounting system makes installation a breeze while its paintable aluminum grille provides added rust protection in moisture-prone areas such as bathrooms and kitchens.