Maintain control of your sound in the most demanding audio environments. Get world class sound in the studio and on the road w/the time-tested quality and rugged design of Summit gear. w/24dB of gain there is plenty of gain for boosting low output instruments and to drive different levels in a rig for tonal variety, w/the stepped pot making it easy for you to instantly recall your ideal settings. One of the coolest features of the TD100 is its variable input impedance control, which lets you perfectly match it (or intentionally mismatch it!) to a wide variety of instruments and pickups, giving you the flexibility to actually change the sound of your instruments!