Quality Sound with Classic Style Versatile speakers will have you wanting to play every device off of them. The R1700BT has built in Digital Signal Processing (Dsp) and Dynamic Range Control (Drc) to prevent distortion Designed with a 19mm ""Eagle Eye"" dome tweeter, this bookshelf speaker creates uncanny sound. Fashioned with a 10-degree angle to direct the sound exactly at you, it creates a better listening experience as it reduces interference. The R17000BT is enclosed in hand picked walnut vinyl, for an elegant look. 4-inch bass driver in each speaker create rich lows and clear highs. With the front facing bass reflex port, low frequencies are emphasized giving the bass more power. Conveniently located dials on the side of the speaker allow complete control of audio, bass and treble. You can also alter your music from the ease of your couch with the wireless remote. Pair your smartphone to the chic bookshelf speaker through Bluetooth.