Issues with Blind-Testing Headphones and Speakers 2014-08-17 12:30:09 Quote from: mzil on 2014-08-15 19:40:28New topic. Things become a bit more complex and controversial if you are attempting to level match things that fundamentally have markedly different frequency responses, such as speakers and headphones. Say for example one speaker has a stronger level of bass than the other one being tested. Do you level match them using pink noise? Do you level match them at 1 kHz? Do you instead level match them at 500Hz? Do you use a narrow band of noise centered where the ear is most sensitive, around 3.5 to 4 kHz? Do you use A-weighting when you conduct any of these level matches? You will get very different results depending one which exact method you use when the products have certain frequency response deviations between them.I always use a 1 kHz sine. Now I have doubts if that is the best method. Should mention that I don't ABX speakers or amplifiers, just cd players, md players and other sources. Should I use, I don't know, ReplayGain?