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From time to time you may experience problems in obtaining optimum equipment 
performance. Following is list of frequently encountered problems.   
 

Problem Solution 

Power indicator and filaments do 
not light 

Check the fuse and make sure the amplifier is 
plugged into a working power outlet 

Sound out of one speaker only 

Turn volume control fully counter-clockwise and 
reverse input connectors. If sound changes from 
one speaker to the other, check source or replace 
inter-connect wires. If the sound is still coming out 
of the same speaker only, check speakers on 
another piece of equipment for proper operation. 

Static, noise, or hum 

Turn the potentiometers Individually clockwise or 
counter-clockwise until the hum reduces to the 
lowest level on each channel 

 
Equipment problem could also be caused by fault in any part of the system or its installation. 
As Legal consumer protection varies from country to country, you should always first consult 
the local dealer for any technical problems that you may experience. Please contact your 
local distributor or Opera Audio at the address in the back of this manual for any difficulties 
that cannot be resolved.  
 
Certain Consonance equipment is made in special versions for different territories as a result 
it is impracticable to arrange international guarantees. Please establish appropriate 
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 
authorized Consonance dealer or Opera Audio factory. As many Consonance components 
are custom made and specially matched, the replacement parts must be ordered through 
Opera Audio or its representative. Our dealer will have all relevant information about the 
service in your area and will ensure that you equipment is serviced without delay.  
 
If for some reason, there are no service facilities available in your area, please ship the 
equipment to the address listed at the back of the manual. 
 
Please note that you are responsible for all shipping charges, insurance, and re-importation 
to your country, and duty arrangements.  
 
When shipping a product back to factory for service, always include the following: 

 

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. 

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

Summary of Contents for R880

Page 1: ...technicians 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 function normally or exhibits a marked cha...

Page 2: ...match the R880 s output impedance per channel Refer to the speaker s manufacturer handbook for information on the nominal impedance The R880 is factory set to match the speakers at 8 ohms and 4 ohms...

Page 3: ...Table of Contents SAFETY INSTRUCTION 1 INTRODUCTION 2 2 UNPACKING SET UP 2 3 OPERATING TIPS 3 4 GENERAL WARNINGS 4 5 TROUBLESHOOTING GUIDE 4 6 REMOTE CONTROL 6 7 TECHNICAL SPECIFICATION 7 8 WARRANTY 8...

Page 4: ...0V 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 a...

Page 5: ...upplies 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 capa...

Page 6: ...iece of Consonance equipment is designed to produce the finest sound quality that can be achieved by avoiding compromise wherever possible This can lead to circumstances that may be unfamiliar to the...

Page 7: ...a result it is impracticable to arrange international guarantees Please establish appropriate guarantee arrangements with your own dealer at the time of sale We are always available to offer help and...

Page 8: ...f buttons is kept to a minimum The volume channel select and mute functions of the amplifier can be operated by using the remote control The Consonance system remote control will also control other Co...

Page 9: ...att 1kHz FREQUENCY RESPONSE 3dB points at 50 watt 6Hz 100kHz INPUT SENSITIVITY 280mV INPUT IMPEDANCE 100k ohms OUTPUT IMPEDANCE 4 8 ohms User selectable SIGNAL NOISE 86dB CONSUMPTION 190watt INPUT INT...

Page 10: ...lied and of all other obligations or liabilities on our part This warranty shall not apply to any Opera audio product which shall have been repaired or altered outside of our factory in any way so as...

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