The HM2EQ is a world-class tube/hybrid 3-band equalizer with a dual-mono design. The A-Design's HAMMER is built to sound musical for larger EQ functions typically found on expensive mastering EQs. It features continuously variable boost and cut controls, but with fixed frequency settings. The HAMMER is engineered with a filtering system that allows the even harmonics to flow through the 12AT7 tubes, filtering out unwanted noise.Some notable users who ve dropped the Hammer on their tracks are Golden Ears Bruce Maddocks, who s mastered mastered Hans Zimmer film scores for Pirates of the Caribbean, The Last Samurai, and Batman Begins, and renowned engineer/producer Ronan Chris Murphy (King Crimson, Terry Bozio) who says, The Hammer is all about gorgeous smooth top and high mids. It totally opens up the top and brings high mids forward in a really pleasing way. . . . I am just not used to being able crank the top on the rock cymbals so much and have them stay so smooth. Another engineer I really respect described the EQ as "the best EQ" he had ever used . . . The unit is housed in a 2U metal chassis with an aluminum faceplate and features a toroidal power transformer. Each channel features identical controls, including switches for bypass, high cut and low cut, as well as six large aluminum rotaries for the EQ section - knobs for the LF (30/50/100/200/300/400), MF (250/500/1.2k/1.6k/2k) and HF (2.5k/3.5k/5k/7.5k/10k/15k) bands, plus accompan...