14
Auditor
Control Elements
Usually already a short contemplative moment should be sufficient to
get a general idea of the Auditor’s user interface and it’s control ele-
ments. Once more the advantages of a consequently purist design ap-
proach are becoming obvious – writing and reading the actual opera-
tional instructions just takes two beats.
Mono
The MONO switch creates a sum of the left and right channel, so you
can listen to stereo sources also in mono. You can also listen to a mono
source on both monitoring channels. The MONO switch is of course
also important and useful to examine the mono compatibility of a mix.
Phase alterations or reversions that may not be too obvious in the ste-
reo panorama can be detected more clearly in a mono sum – in extreme
cases they lead to cancellations.
Volume
The VOLUME level control allows you to increase or decrease the sig-
nal level at the headphone output from b10dB down to
-80dB.
To this end we employ a high-grade ALPS RK27 poten-
tiometer. It distinguishes itself through a high head-
room, very low tolerance and excellent handling
that on the one hand offers sufficient resistance
while, on the other, avoids stickiness.
The VOLUME control is calibrated in a relative dB
scale that references the input level. The 0dB set-
ting is around the two o’clock position, where the
input signal is led to the output with an unaltered
level (unity gain).
If a 600 Ohms headphone is connected, a 0 dB VOLUME
control setting results in ca. 80 dB sound pressure level,
measured at a distance of 3 cm from a headphone trans-
ducer. With a stereo signal the sound pressure level is then at ca.
83 dB – a common reference monitoring level.
VOLUME
