Thermionic Culture THE PHOENIX HG15 High Gain Valve Compressor - Manual (Page 6)

©Thermionic Culture Ltd, October 2013 5
3 Controls
3.1 Input
This controls the signal level going to the HG15.
Switched to MIC the max. gain is over 50dB making it
suitable for most microphones, though not those with
a low output, eg. ribbon mics.
PAD Reduces the level by 14dB for very high mic.
sources, or for extra compression if ‘line source’.
LINE Designed for source levels of 0dBu - +18dBu.
NB.
The +48V switch will apply phantom power to
mics in MIC & PAD mode. Ensure that it is off when
using the PAD setting for extra compression from a
line source.
3.2 Gain
Finely controls the input level to the HG15 using a
high quality conductive plastic potentiometer.
3.3 Bass Cut
This control is supplied basically to reduce the
proximity effect of close mic-ing.
3.4 Threshold
This controls the point at which the compression ‘kicks
in’. Max compression is at 5.
3.5 Time Constant
We have decided to have 6 positions which relate to
most common and usable settings of attack and