Search the FAQ Search Calibration How does subwoofer integration work? Should I use mono or stereo subwoofers? Can I measure a bi-amp passive speaker with DEQX? Can DEQX correct planar, electrostatic, omnidirectional and ribbon speakers? PurchasingArticles coming soon Measurement Can I use a different microphone? Technical What is impulse response and what does DEQX do with it? How does DEQX correct the room? Is frequency-response calibration related to phase/timing calibration? Why not use speaker designs and drivers that don’t need calibration?