API 2500+ - 5 Tone Section; Tone Section Controls; Knee

2500+ Bus Compressor API
11
5.0 Tone Section
The TONE section of the 2500+ controls the shape of the response curve at the onset of compression
(KNEE), inserts the patented THRUST
®
filter before the detector, and set the detector path routing
(TYPE). These controls all influence the tonal characteristics the compression applies to the audio.
5.1 Tone Section Controls
5.1.1 KNEE
The KNEE function determines the shape of the 2500+’s response curve when the
input audio crosses the THRESHOLD.
The 2500+ has three (3) KNEE settings that control how the compressor transitions
into compression:
• HARD: Sharp response curve
o Red LED
• MED (Medium): Slightly rounded response curve
o Yellow LED
• SOFT: Rounded response curve
o Green LED