Keeley 1962X Overdrive for sale. I purchased this new at the time. It's a Bluesbreaker-style overdrive, but unlike recent transparent overdrives, it has a thick mid-low range and provides a solid distortion. You can select between KT66 and KT88 with the mini-switch, allowing you to choose the character depending on your guitar and amp. The thickness of the sound and sustain are excellent, and it can handle everything from crunch to lead. *To prevent parts swapping, we do not accept returns under any circumstances. Thank you for your understanding.