Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Did Not Work

This device just did not work for me. I needed a selector switch, saw that this SKU has had mixed reviews and took a chance. The Toslink cable from my cable converter box provided a signal (could see the red fiberoptic light) however this box seems to reduce the signal strength such that my Yamaha receiver did not get a strong enough signal. As a test, I bypassed the Nyrius box by holding the two Toslink cables end-to-end and the fiberoptic signal passes thru just fine...so it looks like this box is the root cause.I would not recommend this box. Amazon took the box back and promptly refunded my money. It was good to see that Amazon's return policy was easy, however what I really want is a box that works.