up to 61% Off Tone Empire Sale – up to 61% Off Save up to 60% off the entire Tone Empire range of “Hardware Quality” processors. Including the brand new Model 5000 and OptoRED. Expired December 6, 2020 Buy Now All Sales Tone Empire Sale – up to 61% Off Save up to 60% off the entire Tone Empire range of “Hardware Quality” processors. Including the brand new Model 5000 and OptoRED.