2
Introduction
Thank you for the purchase of the Cyber-20 high-end tube amplifiers. Opera Audio welcomes
you to the growing number of discerning audiophiles who own Opera Audio products. This
manual has been prepared to help you to maximize your enjoyment of the performance and
features of your new Consonance equipment. Please study this manual carefully and become
acquainted with all the features, operation and capabilities of your new Consonance
equipment. Should you have any questions, or desire information on other Opera Audio
products, please contact your local Opera dealer.
Unpacking & Set-up
Unpacking
Before any Opera Audio product leaves the factory it is carefully inspected for physical
imperfections as a routine part of Opera Audio's stringent systematic quality control. After you
have unpacked the equipment, carefully inspect for any physical damage. Save the shipping
carton and packing materials as they are essential for future use to reduce the possibility of
transportation damage.
Set-up
1. Check Equipment Voltage
Ensure that the operating voltage of the amplifier, check the shipping carton label and/or
owners manual, conforms to the delivery voltage of your local power supply (i.e. 240V /
230V / 220V / 115V / 100V AC dependent on country).
2. Positioning the Equipment
The amplifier may generate considerable heat during normal operation. Please ensure that
the unit is far away from effect of any domestic heat source and adequate air circulation
around the unit is provided to maintain cool operation. For air circulation, 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 cord 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 then
provide exceptional performance as intended. However, the usual protection of equipment
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. Install Vacuum Tubes
Locate the EL84 and ECC82 vacuum tubes and insert them into their sockets according to
the print on top lid. Pay attention on the proper tube orientation please and be sure to hold the
tube by its base when inserting and removing. This will minimize the chance of breaking the
glue between the socket and the glass.
4. Connect Signal Cables
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