Universal Audio UAD Plug-Ins ver.7.5 - Manual (Page 164)

UAD Powered Plug-Ins Manual - 164 - Chapter 14: Fairchild Tube Limiter Collection
Meter Switch This switch determines what is displayed on the VU meters. In-
put, output, or gain reduction (“GR”) levels can be selected.
The default value is GR. If GR is selected, the meter will show
gain reduction in dB for the corresponding compressor channel.
If the AGC Switch is set to left/right, the GR shown will be for the
left or right channel. If the AGC switch is set to Lat/Vert, the GR
shown will be for the middle (upper meter) or side (lower meter)
channel. In GR mode, the upper labels show gain reduction in dB.
If the meter select switch is set to IN or OUT, then that meter will reflect the rel-
ative level of the right or left input or output signal (the I/O meters are not cal-
ibrated).
Channel Input
Gain
This is a stepped attenuation control which always applies to
left or right input, regardless of the AGC control setting. The
steps are approximately 1 dB apart.
Fairchild 670
The available range is –20 to 0 dB with a default value of –4
dB (unity gain).
Fairchild 660
The available range is –Infinity (off) to 0 dB with a default value of –14 dB
(unity gain).
Note: Like the 660 hardware, there is some signal leakage even when Input
Gain is set to -Inf.
Fairchild 670 Legacy
The available range is –20 to 0 dB with a default value of –18 dB (unity gain).
Threshold This continuously variable control determines the amount of
compression to be applied to the channel. Rotate clockwise
for more compression (increasing the control lowers the
threshold).
In the Fairchild 670, the default value is 1.5. In the Fairchild
660, the default value is 5.