Instruct: Classify Amazon reviews into positive or negative sentiment
Query: theater pipe organ sound

If you want to put your speaker through it's paces, you got to listen to CD quality theater pipe organ; it will blow your mind or blow your speakers. No other instrument produces bass as strong as the theater organ, and my z-2300 do a pretty good job if I'm careful with the settings on my EQ. You have to be careful with the theater organ bass on any sub except subs like the Carver True Sub which is almost undestructable, but the cost is way, way up there. For the money I have no complaints. I'm thinking about buying another z-2300 and run both off my computer.