Instruct: Classify Amazon reviews into positive or negative sentiment
Query: As much Bass as you want

I always dreamed of a "real" subwoofer...and I found it ! I coupled a Yamaha E-250 with the JBL PB10 and listening to the system is a pleasure every day. Whether it's Jazz, Rock, Techno or Drum and Bass, the sub can find the lowest frequencies. There are numerous control at the back to set it at the level you need. I haven't cranked it up to the max yet as books start to fall from my bookshelf when it's set at 2/3. At half volume, the lamps on the first floor shake...you better have neighbor living far from you.I also own a Klipsh subwoofer for my hometheater but it doesn't compare. As for the humming sound, the PB10 as been in my bedroom for a year and i must be deaf bacause i haven't noticed anything.