Try high school bass. Generally, a notebook with a bad sound is easy to hear the problem (so a notebook with a bad sound may be very low). Just write a pop song and try it. High notes don't have too many flaws in ordinary notebooks. Just try a song that loves you. The most important thing is the performance of bass. Many speakers in this book have shortcomings in bass. A slight noise or bass indicates that many details are missing, and serious sound will be broken. The recommended song is 50CENT-wanksta, which is the best choice for the first bass audition. If possible, you can try the details of the original song with a good combination of MP3-weighted bass earplugs, and then try to compare them in your notebook. (Of course, it is normal to expect the notebook and subwoofer earplugs to be completely different, depending on the landlord's own needs. ) I hope it helps you.