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8

8.Warranty 
 
Opera audio guarantees each product manufactured by us to be free from defects in 
materials and workmanship under normal use. Our obligation under this warranty is limited to 
making good at our factory any part or parts thereof which shall, within 1 year after delivery 
to the original purchaser, be returned to us with transportation charges prepaid, and which 
an examination shall disclose to have been thus defective; this warranty being expressly in 
lieu of all other warranties expressed or implied 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 to affect its stability, nor which has 
been subject to misuse, negligence or accident. Warranties of the vacuum tubes are by the 
respective manufacturers, usually 90 days. 
 
Please mail or e-mail the Registration Card to the address as follows: 
 

 

 
 

Registration Card 

 

Name  
Address  
 

 

 

 

 

 

City  
State  
Zip  
Email  
Telephone  
Model  
Serial Number 

 

Purchase Date 

 

Dealer  
 

 

 

 

 

 

 
 

The Opera Audio Co., Ltd.

 

 
No.2 JianXianQiaoLu 
ChaoYang District 
Beijing, China 
Tel: 86 10 64377091 
Fax: 86 10 64377465 

[email protected]

 

www.opera-consonance.com 

 

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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