What’s better than a classic? Taking the base and making it better, of course, and the 1689 does just that (depending on who you ask, of course). The 1689 takes the best of both worlds from the Klon Centaur and Ibanez Tube Screamer and crams them into one package. It features an internal voltage doubler, clean blend, and switchable clipping between symmetrical (down) and asymmetrical (up). Also features soft touch relay bypass.