Vertex Effects Vertex BoostThe Vertex Boost is expertly crafted to be a clean boost, buffer and volume pedal in one. The Boost is designed to leave your tone unchanged, while boosting the level of your signal. The Boost also features an ultra linear buffer to condition your line with ZERO tonal coloration, even with dozens of pedals in your chain. Additionally, you have total volume control by connecting the Boost with any EXP or Volume Pedal and adjusting your volume as you