Instruction manual

2
2. WHEN YOU OPEN THE BOX
Before any Opera audio product leaves the factory it is carefully inspected for physical imperfections as a routine part
of Opera audio's systematic quality control. After you have unpacked the equipment, inspect it for any physical damage.
Save the shipping carton and all packing materials, because they are essential to reduce the possibility of
transportation damage. Because some heat is generated by the equipment, adequate air circulation is provided to
maintain cool operation. Leave enough space around the unit (at least 3 cm on the top and 3 cm on the sides and
leave enough space on the back for the power card and interconnect cables). If the equipment is going to be mounted
in an enclosed cabinet, it is recommended that the rear of the cabinet has vents to allow air to circulate around the unit.
With these considerations implemented, the equipment should provide exceptional performance in any reasonable
environment. Of course, such normal considerations as protection from excessive dust and moisture should always be
observed. All the equipment made by Opera audio has been carefully designed with high quality components so that
Long-term undiminished performance is operated in accordance with the instructions provided.
3. EQUIOMENT INSTALLATION AND GETTING STARTED
Power-Cord, plugs and sockets
The power cord should be routed so that it is not likely to be stepped on or pinched by items placed upon or against it.
All the plugs and sockets supplied with your Consonance equipment have been chosen because they mark the best
possible connection for their purpose. A poor contact will degrade the signal substantially and plugs and sockets
should look clean and free from corrosion. The easiest way to clean them is to switch off the equipment, pull the plugs
out of their sockets, and push them back in again. Special contact cleaners and contact enhancers should not be used
as they tend to deposit a film which is very difficult to remove and may degrade the sound.
Switching on and off
Source components and power supplies for cd players, tuners, preamplifiers and crossovers should be switched on
before switching on the amplifier(s).
Always switch the amplifier(s) off and wait about 5 minute for its power supply capacitors to discharge before
connecting or disconnecting any leads.
Always use the power switch on the produce rather than a mains outlet switch.
Running in
Your Consonance equipment will take a considerable time to run-in before it performs at its best. The duration varies,
but under some conditions you will find that the sound continues to improve for as much as five weeks. Better and
more consistent performance will be achieved if the system is left switched on for long periods. It is worth remembering
however that all electronic equipment can be damaged by lightning. Please read the warnings sectio
Power supply
Where fused plugs are used various amp fuses should be fitted . Fuses of a lower rating will fail after a period of use. A
hi-fi system usually shares a main circuit with other household equipment some of which can cause distortion of the
mains waveform. In some Consonance equipment such distortion can lead to a mechanical hum from the transformers.
The hum is not transmitted through the speakers and has no effect on the performance of the system but is purely local
to the transformer itself. A separate fused mains circuit (like that reserved for electric cookers) will also have a lower
impedance, supply cleaner power, and consequently improve system performance.
Do not wire voltage dependent resistors or noise suppressors into mains plugs. They degrade the mains supply and
the sound.
Locating the equipment
Power supplies and amplifiers should be located a reasonable distance away from other equipment. This separation
will stop transformer reasonable causing hum audible from the loudspeakers. The minimum recommended distance is
300mm (12 inches), and that allowed by the standard interconnect lead is the maximum.
Some Consonance equipment is extremely heavy. Ensure than your equipment rack or table can easily support the
weight and is stable.
Cables, connections and speaker Impedance
Loudspeaker leads are also very important leads to suit your equipment installation. The leads should each be at least
3.5 meters long and of equal length. The recommended maximum is 20 meters. The loudspeaker connectors supplied
with all Consonance amplifiers and loudspeakers have been specifically designed to make a tight mechanical
connection. It is essential that these are used in order to comply with local safety regulations.