HTJ-WORKS Traditional Crystal This is a preamp. I'm selling it because I'm considering other pedals. Due to the nature of the paint, it's prone to scratches, but in my opinion, it's not noticeable. The manual and box are also included. Although not shown in the photos, the box has a serial number. The Traditional Crystal is an emulator circuit inspired by TWO ROCK, a high-end boutique amplifier manufacturer. It has a discrete structure that replaces the vacuum tubes of the actual pre-main circuit with transistors. It uses Orange Drop capacitors and high-quality parts, and the board design also gives it an amplifier-like appearance. It emulates the clean channel, so the distortion is a maximum of crunch. It has two outputs: a POWER output suitable for connecting to a power amplifier, and an AMP output that goes through a buffer circuit. You can use them as you like in combination with other peripherals. The POWER output is mainly intended for connection to a power amplifier, so the bypass footswitch will not work. It is effective as a countermeasure for the return insert of a vacuum tube amplifier in a studio or for a Jazz Chorus. john mayer effector preamp overdrive