For PA688 Turntable for Mini Audio Systems Amplifier features – Adjustable Low-Pass Crossover, Phase Switch and Subwoofer Volume Control to more easily control bass output and the sub’s blending characteristics with front stage speakers Subwoofer Driver Complement – 10 Diameter (25.40cm) Dynamic Balance Composite Cone Overall Frequency Response – 32Hz-250Hz /Crossover (subwoofer) – 60Hz-160Hz Speaker Inputs – level spring terminals, Line level L&R, LFE line level (unfiltered) Speaker Outputs – level spring terminals Enclosure Type – (subwoofer) Vented, Downward Firing Port Continuous Average Power Output – 100 watts / Dynamic Power Output – 200 watts Unit Dimensions (HxWxD) – 14-1/2 x 14-1/4 x 17 inches (36.83 x 36.20 x 43.18cm) Product Weight 33.5 lbs. (15.20kgs) Polk Audio Speaker Warranty – 5 years parts and labor (original purchaser) Polk Audio Subwoofer Amplifier Warranty – 3 year parts and labor (original purchaser)Compression Circuitry limits distortion at earth-shaking volume levels.
Built-in High Current Amplifier supplies all the good, clean power you need for big bass.
LINE and SPEAKER level inputs ensure easy hook-up compatibility with virtually any system
Signal-sensing smart amp Auto ON/OFF Circuitry knows when to turn itself on and off
Non-resonant MDF construction with internal bracing for deep bass impact with superior detail, accuracy and musicality