Radio Design Labs
Gated Speech Preamplifier-Mic to Line
Gated Line Amplifier-Noise Gate
Gain Control Amplifier-Line Level
Ferrite Suppressor/RF Filter
3 Band Equalizer-Line Level
Line Level Distribution Amplifier-1x3
Passive Audio Divider/Combiner-600 Ohm
Passive Audio Divider/Combiner-150 Ohm
Passive Audio Divider/Combiner-10 k Ohm
Subwoofer Crossover Filter
Two Band Active Line-level Crossover
Compressor/Limiter-Line Level