Alto CYCLONE User Manual page 17

[ Cyclone Stereo Input Channels ]
The Cyclone preamp section is fully featured with all the useful controls to manage the sound source. There are two
different preamp input path for mono or stereo signals, the latter features just GAIN while the mono preamp input is
regularly featured like any other mono input. In this way the sound engineer can use, for example, the stereo keyboard
outputs in the same channel of the entertainer voice, if both signals are not required at the same time and each source
will has its own level control.
PHANTOM POWER switch & LED
The switch must be engaged when you're using a condenser microphone or a direct box that can be powered by phantom
power, instead of batteries. The LED gives the user a visual control over channels with phantom power on.
PHASE switch & LED
This switch allows the user to invert by 180 the signal. This switch is very useful in a lot of circumstances, in particular
when several microphones are very close (e.g. drum kit, brass, choirs etc.) and the sound engineer notices interferences
between microphones that can't be solved by moving the microphones. The LED gives an immediate control over
channels with inverted phase electronic circuits.
MONO IN GAIN & LEVEL SET LED
The GAIN control gives you the chance to continuously adjust the preamplifier gain for input signal. This control can be
adjusted in 0/+60dB range for microphone input. The LEVEL SET LED will help the sound engineer to immediately detect
the input level. In this case the research of the fault will become much faster!
HIGH PASS switch & LED
This section allows the sound engineer to reduce the lower frequencies of MONO INPUT
by engaging the switch This control is very useful when you detect hum or rumble or
you want to cut unwanted low frequency sounds picked-up by microphones. The LED
shows if the HIGH PASS section is active or not.
STEREO IN GAIN
The GAIN control gives you the chance to
for LEFT (MONO) & RIGHT inputs. This control
range input.
INPUT SELECT switch
Pressing this switch you'll select the mono input source for this channel, while
releasing this switch you'll use the stereo signal.
INPUT SELECT LED
This LED is lit when you use a mono signal, the INPUT SELECT switch is pressed.
contin uously adjust the amplifier gain
can be adjusted in
16
-20/+20dB
PHANTOM 48V
PHASE
MONO IN
LEVEL
GAIN
SET
0 +60
HIGH PASS
STEREO IN
GAIN
20 20
-
+
INPUT SELECT
STEREO
MONO