Opera Audio R880 Instruction

Reference 880

READ ENTIRE INSTRUCTION MANUAL BEFORE USING

1. SAFETY INSTRUCTION
Read Instructions-All safety and operating instructions should be read before the amplifier is operated

Retain Instructions -Safety and operating instructions should be retained for future reference.
Heed warnings-All warnings on the amplifier and in the operating should be adhered to.
Follow instructions-All operating and use instructions should be followed.
Water and moisture-The equipment should not be used near water, e.g., near a bathtub, washbowl, kitchen sink,

laundry tub, in a wet basement, or near a swimming pool etc.
Ventilation-The equipment should be situated so that its location or position does not interfere with its proper ventilation.
So the equipment should not be situated on a bed, sofa, or similar surface, e.g., that may block the ventilation
openings, or placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air. The
equipment should be situated away from heat sources such as radiators, heat register, stoves, or other electronic
appliances that produce heat, so it may not suitable for commercial use.
Power sources-The equipment should be connected to a power supply only of the type described in this manual or as
marked on the equipment.
Grounding or polarization-Power-supply cords should be routed so that they are not likely to be walked on or pinched
by items placed upon or against them, paying particular attention to cords and plugs, convenience receptacles, and the
point where they exit from the amplifier.
Power lines-In case of connecting a tuner, an outdoor antenna should be located away from power lines. If an outside
antenna is connected to the system, be sure the antenna is grounded so as to provide some protection against voltage
surges and built up static charges.
Any Servicing-The user should not attempt to service the equipment r beyond that described in this manual. All other
servicing should be referred to qualified service technicians

CAUTION:
TO PREVENT THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-

SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of
uninsulated
risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the to the presence of important operating and
maintenance (servicing) instructions in the literature accompanying the appliance.

Congratulations!

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.

1

“

dangerous voltage”within the product's enclosure that may be of sufficient magnitude to constitute a

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.

2

For best performance, the load presented by the speaker has to match the amplifier's output impedance. Refer to the
manufacture's information for your speaker nominal impedance. All the vacuum tube amplifier made by Opera audio
are factory set to match the speakers at 8 ohms and 4 ohms.

If you have a problem

Legal consumer protection varies from country to country. A problem may be due to a fault in any part of the system or
its installation so it is essential to make full use of your local deale r’s diagnostic skills on site. Please contact your loca l
distributor, or Opera Audio at the address in the back of this manual, if any difficulties cannot be resolved. Some
Consonance equipment is made in special versions for different territories and this makes it impracticable to arrange
international guarantees. Please establish the guarantee arrangements with your own dealer at the time of sale. We
are always available to offer help and advice.
It is essential that repairs and updates are only carried out by an authorized Consonance dealer, or at the factory by
Opera Audio itself. Many components are made, tested or matched specially for Consonance and appropriate
replacements are often unobtainable from non-specialist sources.

The equipment should be serviced by opera audio company or any qualified service personnel when:

–The Power-supply cord or plug has been damaged.
–Objects have fallen or liquid has been spilled into the equipment.
–The equipment does not appear to act normally or exhibits a marked change in performance.
–The equipment has been dropped or the enclosure damaged.

Our dealer will have all relevant information about the service in your area and will ensure that you unit is serviced
without delay. If for some reason, there are no service facilities available in your area, please ship t he equipment to the
following address:

The Opera Audio Co., Ltd.
No.2,JiuXianQiaoLu , ChaoYang District, Beijing, China
Post Code: 100015, Tel: [phone], Fax: [phone]
Email: [e-mail]

,Website: www.operaudio.com

You are responsible for all shipping charges, insurance, re-importation to your country, and duty arrangements. When
shipping a product to factory for service, always include the following:

–A sales slip or other proof of purchase if repair is claimed under warranty.
–A proforma invoice with value of the goods, stating that the amplifier is returned to china for repair.
–An accompanying letter describing faults, symptoms or problems with the amplifier.
–Always ship the amplifier in its original carton and packaging material to prevent damage in transit.

The Opera Audio will not accept responsibility for any damage caused in transit, no matter whatever caused.
Warnings

Consonance equipment is designed to offer the finest sound quality that can be achieved, avoiding compromise
wherever possible. This can lead to circumstances that may be unfamiliar. The material that follows contains advice
specifically related to Consonance equipment as well as more general warning about the use of domestic audio
products. Please read it carefully.

The transformers in Consonance power amplifiers and power supplies may sometimes make a mechanical noise
caused by distortion of the mains waveform. Consonance transformers are large in size and have heavy gauge
secondary windings making them relatively sensitive to such distortion. A separate mains circuit for your hi-fi system
may reduce the effect while also giving an overall improvement in sound quality. It may be necessary however to take
account of mechanical transformer noise when placing your equipment.
In some circumstances, depending on where you live and the grounding arrangements in your home, you may
experience radio frequency interference. Controls on broadcasting in some territories allow very high levers of radio
frequency radiation and both the choice and exact place of equipment may be critical. If there is a known problem in
your locality it is advisable to arrange for a home demonstration before purchase to find out if Consonance equipment
is likely to be affected. Susceptibility to radio frequency interference is related to the wide internal bandwidth necessary

3