Gob-smacked by DEQX

When I entered the DEQX room and experienced a neutral, almost full-range sound, I assumed I was listening to the Gallo Reference speakers. But no—it was the $80 pair of RadioShack PA horns in the room corners that were playing, corrected in the digital domain with the latest DEQX DSP processor, the DEQX Mate. This is an analog in-and-out (XLR and RCA), two-channel processor that goes between the preamp and power amplifier. Bypassing the DEQX Mate resulted in the squawky balance I would have expected from the horns, with no lows or highs. Switching the DEQX Mate back in-circuit gave a sound that was evenly balanced, with good HF extension and enough upper bass to sound convincing. Color me gob-smacked!
Source : stereophile[dot]com