I’ve owned quite a few treble boosters and have used them on and off for years. I love the dynamics and the way they push your sound forward, but they’re typically noisy and a bit too “honky” for me. Germanium transistors can be problematic too. The Naga Viper solves/mitigates these issues. It’s been out for years and there are lots of glowing reviews. I don’t know why it took me so long to try it, but I’m loving it. If you’ve tried treble boosters before but were turned off by the issues listed above I would highly recommend giving the Naga Viper a try.