API Audio The Channel Strip - Manual (Page 24)

5.3.3 Equalizer Bypass
The 550A Equalizer can be removed from the audio path in two (2) ways:
• EQ BYPASS: Hard relay-based bypass
• IN (switch): Internal bypass within the 550A Equalizer
5.3.3.1 EQ Bypass
When the EQ BYPASS switch is engaged, the 550A Equalizer is completely removed from the
audio path via a hard relay-based bypass.
EQ BYPASS (Compressor Bypass): Completely removes the 550A Equalizer from
the audio path
• Relay hard bypass
• Illuminates when engaged
5.3.3.2 EQ IN Switch
In addition to the EQ BYPASS, the 550A Equalizer has its own IN switch, which must be
engaged for the EQ to be heard. If the IN switch is not engaged, the EQ is still in the audio
path, but is bypassed within the 550A Equalizer.
IN: Activates the 550A Equalizer internal bypass
• Silent operation
• Illuminates when engaged
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