8
1. Introduction
Congratulations for having chosen the SWING 32 mixer!
To make the best use of the mixer, please read this
manual thoroughly before operating the equipment.
2. Contents
3. Instructions for use and installation. . . . . . 3
4. MONO input channel . . . . . . . . . . . . . . . . . 3
5. STEREO input channel . . . . . . . . . . . . . . . 4
5. MASTER section . . . . . . . . . . . . . . . . . . . . 4
6. REAR panel . . . . . . . . . . . . . . . . . . . . . . . . 6
5. Technical Specifications . . . . . . . . . . . . . . 7
3. Instructions for use and installation
1. Protection and maintenance.
To avoid jeopardizing correct operation, it is best not
to position the mixer for long periods in exposed places
(damp, high temperature, etc.), in dusty environments
or those subject to strong vibrations. Do not force
knobs, switches or faders: they have been designed to
respond to a light touch and could be damaged if
treated with excessive force. In the event of breakdown,
do not open the mixer, but contact the nearest
GENERALMUSIC Service Centre.
2. Prevention of possible interference.
First of all, check that the mixer is installed in a place
free from industrial or RF (radio frequency) interference.
Avoid installing your equipment very near radio or TV
sets, mobile phones, etc., as these can cause noisy
interference.
3. Connections.
Before connecting the amplifier to the mains socket,
always make certain that the electric system and mains
socket have an adequate grounding, compatible with
the safety norms. Be sure also that the mains voltage
corresponds to that shown on the rear of the unit (an
allowance of up to ±10% is accepted) and that the
power cord is not damaged and has no bare wires. It
is best to lower (or better still close) the output levels
and switch off any amplifiers connected to the line
output of the mixer before switching the mixer on or off:
this avoids annoying and sometimes dangerous
(particularly for the speaker cabinets) signal peaks.
4. Connector cables.
When connecting the mixer to teh amplifiers or the
amplified speakers, make certain to always use only
screened signal cables made up of two wires plus a
braid/screen: the use of unscreened cables could in fact
probably cause annoying hum and noise. Check
periodically that your cables are in good condition,
correctly wired and with perfectly efficient contacts: in
fact many problems and drawbacks (false contacts,
ground hum, crackles, etc.) are caused by the use of
unsuitable or damaged cables.
4. MONO input channel (fig. 1)
1. MIC/LINE INPUT
Balanced COMBO connector. The XLR input receives
the MICROPHONE signal on the channel and can
accept a wide range of balanced or unbalanced low
impedance signals, including the signal coming from
condenser microphones with +48V power supply (see
Rear panel). The JACK input can receive balanced or
unbalanced high-impedance signals from equipment
with a LINE output.
2. CHANNEL INSERT
STEREO JACK connectors that allows to use an
external device (equalizer, compressor, etc.) to process
the signal of the channels from 1 to 24. The INSERT
connectors have the signal SEND on the JACK TIP and
the signal RETURN on the JACK RING (see
CONNECTOR CABLES).
3. LO-CUT
HI-PASS filter that allows to reduce the frequencies
below 75 Hz with a 18 dB / Oct. slope. Thanks to this
filter it’s possible to eliminate unwanted subsonic
frequencies, like, for examples the microphones rumble
due to the stage resonance.
4. GAIN
Gain control for the regulation of the amplification of
external signals fed into the channel. The range for the
MIC input is -15/-55 dB, while the range for the LINE
input is +5/-35 dB.
5. HIGH
HIGH frequency control: gives a 15dB boost or cut at
12 kHz with a “SHELVING”curve.
6. MID
HI-MID frequency control: gives 12dB boost or cut from
100 Hz to 8 kHz with a “PEAKING”curve.
7. LOW
LOW frequency control: gives 15dB boost or cut at
80Hz with a “SHELVING”curve.
8. AUX 1&2
The AUX 1&2 sends are PRE-FADER: this means than
the signal sent to the MONITORS is taken before the
control of the channel FADER, allowing a completely
independent mix for the monitoring respect to the main
mix.