This is a review using the included cable. On that premise. As everyone has said, Macbeth is an all-round IEM with almost no flaws, taking the best parts of the Annihilator for the highs, the CP622B for the mids and sound field, and the Subtonic STORM for the lows. However, I feel that it is not a monitor-like sound, but a musical sound, so I guess that is a matter of personal preference. Even so, as the name Macbeth suggests, it is interesting that the sound is artistic and theatrical like Shakespeare. It really feels like you are listening in a hall. Macbeth is a really good IEM, except for the sound leakage and the price of the upgrade cable. I recommend it!