The matched and calibrated analog channels of the APB hardware make the MC-3 one of the most precise analog multi-band compressors available. Analog saturation control is also available per band. All MC-3 parameters are automatable and can be saved as a preset for instant session recall.
The MC-3 Multi-band Compressor is a three band compressor. Each analog compressor has threshold, make-up gain, ratio, attack and release controls. There is also a separate analog saturation control. Each compressor can be triggered from the original input signal, or a side chain signal. The digital crossover filters use double precision arithmetic for exacting control to divide the input into 3 bands of frequencies.
Other MC-3 Multi-band Compressor include main input and output control (with phase correction), and a 3-way VU meters for input, total gain reduction, and output monitoring.
An important aspect of any APB plug-in is that the plug-in is primarily a controller. The APB plug-in takes the input audio signal, combines it with a control signal, and sends both along a Thunderbolt connection to an APB unit for processing. The control signal sets up the analog components to do the selected algorithm with all the parameter values, and the audio signal is converted to the analog domain. The analog version of the audio signal is processed in the analog domain, and then converted back to the digital domain.
By operating the APB hardware from an APB plug-in in this way, all user controllable parameters are recallable and can be saved as presets. Furthermore, because the control signal is married to the input audio signal, parameters can be updating during playback with sample accurate automation.