Instruct: Classify the given review as either positive or negative.
Query: Quality control issues!

I bought this stylus to go on my brand-new Audio-Technica AT-LP120. Installation was easy, and for a day, it sounded very nice. But then, after about 5 total hours of use, the right channel went out, replaced by a faint, low hum. I double checked all my connections, un-installed it, re-installed it, and re-installed the original cartridge that the turnable shipped with, which worked fine. I can assure you that the stylus did not meet with any accidents, and nothing was hooked up wrong. This thing simply died on it's second day of use.