... EQ,Gain, Delay, Polarity, Crossover, Limiter ,Signal select. Key word:Professional Speaker: 96k Hz sampling frequency, 24-bit A/D and ... ; Password Function. 6-band EQ: frequency , gain & Q fact are adjustable; gain can be adjusted from -20 dB to +20 dB ... ;48dB/oct.LimiterLimiter with each output channel. The parameters are adjustable: Threshold value: -20dBu~+20dBu; step:0.5dBu. Attack time: 0 ...