he GP Lightstone Emperor is an all-tube preamplifier built in Germany. It is designed as a standalone tube preamp intended for use with bass or guitar signal chains. The unit employs vacuum tube circuitry to deliver harmonically rich tone, natural compression, and dynamic response associated with traditional valve designs. It is intended to be used as a front-end tone shaping device before a power amplifier, recording interface, or mixing console. The Emperor is produced as a boutique device with a focus on tube signal path and analog sound character. It is not a stompbox pedal and is designed for studio or stage rack or desktop use.