I've been messing with my MP3 cassette lately.Though I can't say if I've done something differently,it seems to work now without the dropout I was previously experiencing.Also,I have noticed that the "EQ" button on the face of the cassettes works even when not using headphones.If I put the cassette in a boombox,I will get a different sound depending on the number of times this button has been pressed.Unfortunately,I lost my instruction to it.Can someone who has one of these tell me the names of the different EQ presets and the order they are cycled through when the EQ button is pushed?Thanks...