14. INSTALLATION
Applying power .
Before switching on the power supply of the ClubMix, check the main voltage of the supply by looking at the
sticker on the back of the console, and see whether the power cord matches the ones you are used to work
with. This also indicates that your ClubMix has been wired for correct voltage.
This should be 110 Volt for area's with voltage from 100 Volt to 120 Volt and 220 Volt for area's with voltages
between 220 and 240 volts.
Main voltages:
The main fuse should be 3.15 Amp. slow blow for 220 Volt, and 6.3 Amp 20 mm. slow blow for 110 Volts.
NOTE Do n o t replace the fuse with any other type, as this should become a safety hazard and will void the
warranty.
14.1 INTERFACE LEVELS
The ClubMix is prepared for interfacing with almost all available equipment.
One point of attention has to be made concerning the output. The outputs deliver a n4dBu level,
which is sometimes too high for power amps rated at 300mV sensitivity for full output. In those cases you
should install an input attenuator at the power amps input to reduce this + 4dBu level by approximately 12dB.
Use a 2K2 series resistor and a 680 ohm shunt resistor across the amplifier inputs.
14.2 GENERAL WIRING PROCEDURES
To take full advantage of the excellent signal to noise ratio of the ClubMix it is necessary to carefully read this
part of the manual.
Hum, radio frequency interference buzzes and instability are often caused by improper wiring and inferior
grounding systems! Sometimes the incoming mains ground is not adequate for studio and a separate
technical ground has to be made for all the audio equipment.
Your electricity supply company will give you all the details to avoid insufficient safety regulations. There are
some ground rules to be followed.
All signals in a studio are referenced to ground. This ground has to be clean and free of noise. A central point
should be decided for the main ground point system and all grounds should be started f from this point .
The way your electricity company has daisy chained the ground in your situation is unsuitable for your studio.
The best way is to run a separate ground wire from each outlet to the system starpoint ground. This the safety
ground earth and screen reference for all your equipment.
A separate wire from all the equipment racks to the starpoint is nice to have in cases where the ground via
main plugs is not satisfying.
The starpoint should be located at the rear of the console or equipment rack .
All equipment has to be located as far as possible from the incoming mains distribution boxes.
Unbalanced equipment may need to be isolated from the rack to avoid
ground loops.
Clubmix manual page 14