Perfect for my needs!
I play upright bass in a big band and find it difficult to hear my own intonation. Even with raising a cab off the floor or tilting it more upwards, the sound would get lost. The Phil Jones Earbox is the PERFECT answer for the issues I've experienced and I would highly suggest it to anyone with the same issues! It's simple, it works, and it improves my playing and intonation because I can actually hear that highs and mid-range frequencies that otherwise get muddled at my knees!
Rick
Boise, ID