TOA Electronics TDX2 - Manual (Page 33)

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14. Appendices
14.1. Appendix 1 : Limiter threshold
Limiter threshold in dB to Vrms lookup table.
dB Vrms dB Vrms
+22 9.75 +5 1.38
+21 8.69 +4 1.23
+20 7.75 +3 1.09
+19 6.90 +2 0.98
+18 6.15 +1 0.87
+17 5.48 0 0.77
+16 4.89 -1 0.69
+15 4.36 -2 0.62
+14 3.88 -3 0.55
+13 3.46 -4 0.49
+12 3.08 -5 0.44
+11 2.75 -6 0.39
+10 2.45 -7 0.35
+9 2.18 -8 0.31
+8 1.95 -9 0.27
+7 1.73 -10 0.24
+6 1.55
Calculation:
Vrms = 0.7746 x 10 ^ (dBu / 20)