Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It really works!

It's not a scam! It really works. Sound is more defined, the stage is more dimensional, it doesn't mess with the frequencies. It's kind of weird really. One word of caution, it makes everything louder, so some music might clip a little. When that happens, just bypass it. It also comes with decent patch cables.This improves all music and movies; it was was recorded well, it will sound better, if it was recorded horrible, it will sound better. If you are using it with Dolby Pro Logic IIX or DTS NEO 6 you will hear everything more defined, the surround and back channels become more active. Dialog becomes very clear. Nuances are restored.Yeah, it's weird. It requires no power so it's passive. It's just weird, but not a scam.You can even use it in your car stereo.I've tried lots of various enhancers over the years, only to remove them from my audio chain and sell them because I don't like the trade-offs associated with them. This piece of equipment is staying.