Instruct: Classify a review as either positive or negative.
Query: Senheiser CX-300 disappoints

I recently left my earbuds on an airplane. I replaced them with the lower cost Senheiser CX-300. Boy, was I disappointed, and I wish I had saved the price of the SC-300's and applied it to a better pair. However, I have adjusted my equalizer on the iPhone so I can use them, but they are far from Hi-Fi. Previously I had a pair of Etymotic Research ER6i buds, and they were great. Note that they cost considerably more than the Senheisers. The Ety's not only gave great sound (get a good seal in the ear for bass), but they were much more sound isolating. I had to run the sound loud on the Senheisers on a flight, because they give very little sound isolation.Save up your pennies and get the ety's.