excerpt from an equaliser sold by carvin: 1/3 Octave Center Freq: 25,31.5, 40, 50, 63, 80, 100, 125, 160, 200, 315, 400, 500, 630, 800, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k, 16k, and 20k Let's see now... I know 1 frequency, that's the A note, which is 440 hertz(an octave higher than the A note on a bass) so let's start from that. that's between 400 and 500, so let's go an octave lower. the first A note on a 4-string is thus around 175 hertz. let's hop to the E note. i'll take 1/3 octave lower, and some. let's say.... 135 hertz. B note: i'll start from the A note, cause, that's more precise than the E. that's a little less than 1 octave lower. i'd say 70 hertz. low f# : like E, i'll take 1/3 octave lower, and go a little lower... 54 hertz Is this about right? I thought it would be a little lower... more like F#= 32 hertz or so... does anyone have a list with the freqs?