Instruct: Classify Amazon reviews into positive or negative sentiment
Query: POLK AUDIO DOES IT AGAIN

POLK AUDIO DOES IT AGAIN! THEY ARE A GREAT ADD ON TO MY 7.1 SURROUND SOUND. THEY ARE FOR THE REAR LEFT AND RIGHT IN THE CEILING. NICE HIGHS AND MIDRANGE WITH OK BASS. THE SUB-WOOFER FROM POLK TAKES UP THE SLACK FOR BASS. EASY TO INSTALL WITH CUT RUN WIRES..INSERT AND DONE