dB magnitude of Complex logarithmic Spectrum 1 unit <==> 0.0 dB step= 1.000terc 15.85 -93.58 19.95 -77.56 25.12 -54.10 31.6 -51.54 39.8 -55.51 50.1 -55.78 63.1 -54.64 79.4 -48.11 100.0 -42.67 125.9 -48.64 158.5 -45.56 199.5 -48.81 251.2 -50.54 316 -50.42 398 -52.58 501 -51.41 631 -56.01 794 -61.32 1000 -59.19 1259 -59.35 1585 -66.53 1995 -73.10 2512 -77.53 3160 -80.16 3980 -79.98 5010 -80.17 6310 -90.50 7940 -97.02 10000 -99.10 12590 -103.01 15850 -110.42 19950 -111.35 25120 -111.62