Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What a disaster

Having read the glowing recommendation, I bought this thing. Yechhhh. I have no doubt that that reviewer was right, but if so he must have had incredibly sophisticated tone controls, perhaps a superb equalizer, in his stereo system -- This thing is almost unbelievably SHRILL. I turned my lowly treble control [on a B & K preamp] all the back, and it was STILL painfully shrill. This almost always results from the unfortunate practice, in the "classical"-music industry, of hiring "engineers" who have worked as well in the "rock 'n' roll" "industry" and who, as a result, have blown out their high-end hearing, with the result that they have to crank the treble sliders all the way up to hear the highs...which in turn causes the recordings to be 'way too "hot" for those of us who still have normal hearing. Avoid this like the plague -- unless, of course, you too have either lost your treble hearing, OR have an extremely sophisticated set of tone controls.