I play bass 2-3 weekends a month in my band and have owned this unit for approx 2 years. The sound quality is very impressive and it reproduces bass very well with no noticeable frequency loss. The construction of the beltpack/transmitter lacks quality and ruins what otherwise would be a fantastic wireless system for the money. Heck, Line 6 could probably corner the market if they would just pay some extra attention to a few things. After dealing with a broken belt clip, battery door and now internal jack, I'm afraid I'm done with it. If you guys think people are just going to go spend $250+ on another Line 6 product every time the one they have breaks, think again. My advice to musicians: If you absolutely need to go wireless, save your money a little bit longer and invest in a higher quality Shure or Sennheiser.