marky
07-26-2004, 06:45 PM
i got this from audioholics.com by By: Gene DellaSala,
' The YPAO system uses pink noise sweeps to map the response of the room at the listening position for each speaker. Pink noise delivers constant power per octave and the YPAO attempts to equalize the magnitude response accordingly. However, in attempting to achieve a "Flat" frequency response, this can have deleterious affects on impulse response and also reduce dynamic headroom in the amplifier if certain frequencies are boosted as opposed to being attenuated. If for example, the YPAO equalizes a +6dB gain centered around 3kHz, then the amplifier would be tasked to produce up to four times the power for that frequency band, thus reducing headroom and potentially causing compression, and/or distortion. Additionally, if the YPAO system attempts to compensate for a speaker deficiency by creating a boost because of improper crossover design and/or some other speaker anomaly or strange impedance characteristic, when coupled to an amplifier this can actually create a dangerous effect as it can potentially drive some amplifiers into oscillation when boosting under these circumstances ' what does it mean? using the eq can damage ur speakers? ive been using it but dont know if its actually harming my speakers. please explan this to me in plain english. thanks !
' The YPAO system uses pink noise sweeps to map the response of the room at the listening position for each speaker. Pink noise delivers constant power per octave and the YPAO attempts to equalize the magnitude response accordingly. However, in attempting to achieve a "Flat" frequency response, this can have deleterious affects on impulse response and also reduce dynamic headroom in the amplifier if certain frequencies are boosted as opposed to being attenuated. If for example, the YPAO equalizes a +6dB gain centered around 3kHz, then the amplifier would be tasked to produce up to four times the power for that frequency band, thus reducing headroom and potentially causing compression, and/or distortion. Additionally, if the YPAO system attempts to compensate for a speaker deficiency by creating a boost because of improper crossover design and/or some other speaker anomaly or strange impedance characteristic, when coupled to an amplifier this can actually create a dangerous effect as it can potentially drive some amplifiers into oscillation when boosting under these circumstances ' what does it mean? using the eq can damage ur speakers? ive been using it but dont know if its actually harming my speakers. please explan this to me in plain english. thanks !