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Troubleshooting Guide 
 

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 Cyber880A

Page 1: ...chnicians 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 chang...

Page 2: ...h the Cyber 880 s output impedance per channel Refer to the speaker s manufacturer handbook for information on the nominal impedance The Cyber 880 is factory set to match the speakers at 8 ohms and 4...

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 5 6 TECHNICAL SPECIFICATION 7 7 WARRANTY 8...

Page 4: ...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...

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: ...ngs Every piece 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 unfamil...

Page 7: ...ritories 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 off...

Page 8: ...nal input right left Speaker output left AC Power connection 230V 115V 100V AC dependent on country There is a bias indicator of power tubes V1 V8 set on the front side of transformers cover Note Norm...

Page 9: ...watt x 2 RMS 1kHz TOTAL HARMONIC DISTORTION less than 1 20watt 1kHz FREQUENCY RESPONSE 3dB points at 50 watt 5Hz 85kHz INPUT SENSITIVITY 850mV INPUT IMPEDANCE 100k ohms OUTPUT IMPEDANCE 4 8 ohms User...

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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