... an inexpensive solution for background music and announcements AP-W228K DUAL CASSETTE DECKFeaturing two cassette decks, one playback and one play ... for background music and announcements. Other features are:Auto-reverse dual deck systemA: play, B: play and recordContinuous play with ... AP-W228K Input 80mV , 50k ohms Output 80mV , 5k ohms Frequency Response (-20dB rec) 40Hz - 16kHz (+/- 3dB) S/N Ratio ...