User manual PRESONUS ACP-22 DATASHEET

[. . . ] Also, an "Auto" mode on every channel takes the guesswork out of setting the compressor. The noise gates are excellent for cleaning up drums, vocals, and instruments. [. . . ] The Gate boasts a Gate Key/Sidechain for precise frequency gating applications. In addition, each channel has a seven-segment LED meter that displays gain reduction, and an LED indicator for gate position (open/close) and compression threshold (above/below). A unique linking function makes it possible for any channel to be linked to the previous. This comprehensive bus can link two to eight channels together in any order as well as create various link groups. De-essing, ducking and other forms of spectral processing can be accomplished using the compressor Sidechain provided on every channel. This VCA has unsurpassed dynamic range, extremely low distortion charateristics and virtually no noise. The noise gate shall have a threshold of - infinity to no less than +20dBu. The gate attack time shall be variable from 10 microseconds to no more than 100 milliseconds. The gate release time shall be variable from . 02 to no more than 2 seconds. The stereo link shall be of the true RMS summing type with the previous unlinked channel as the master when linked. The unit shall have the following front panel switches for each channel: Soft/Hard knee, auto, link, range and bypass. Each channel shall have the following identical controls: Compressor threshold, compressor ratio, compressor attack, compressor release, gate threshold, gate attack, gate release, and channel gain make up; and the following identical metering and indicator LEDs for each channel: Below/Above compressor threshold, compression gain reduction, gate open/close, and link engaged/disengaged. [. . . ] There shall be a rear panel switch for each channel to select nominal input and output operation levels at 10dBV or +4dBu. The power requirements shall be 100-120VAC 50/60Hz or 200-240VAC, 50/60/Hz, 20W via a detachable IEC type AC cable. [. . . ]