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Limited warranty

WHAT YOUR WARRANTY COVERS

This warranty extends only to the original user of the equipment (“you”, ”your”) and is limited to the 
purchase price of each part. Amphony and it’s affiliated companies (”we”, ”our”, ”us”) warrant this 
Wireless Headphone Set against defects in materials or workmanship as follows.

LABOR:

 For a period of ninety (90) days from the original date of purchase, if we determine that the 

equipment is defective subject to the limitations of this warranty, we will replace it at no charge for labor. 
We warrant any such work done against defects in materials or workmanship for the remaining portion of 
the original warranty period.

PARTS:

 For a period of one (1) year from the original date of purchase, we will supply, at no charge, new 

or rebuilt replacement parts in exchange for parts we determine are defective subject to the limitations of 
this warranty. We warrant any such replacement parts against defects in materials or workmanship for 
the remaining portion of the original warranty period.

Note:

 ”Parts” means items included in this package. It does 

not

 include other parts purchased seperately.

WHAT YOUR WARRANTY DOES NOT COVER

This warranty 

does not cover

 consumer instruction, physical setup or adjustment of any consumer 

electronic equipment, headphone batteries, or signal transmission problems.

This warranty 

does not cover

 cosmetic damage, damage due to the affixing of any attachment not 

provided with the product, loss of parts, connecting the product to any but the specified receptacles, 
lightning, electrical surges, fire, flood, or other acts of God, accident, misuse, abuse, repair or alteration 
by other than authorized service personnel, negligence, commercial or institutional use, or improper or 
neglected maintenance.

This warranty 

does not cover

 equipment sold AS IS or WITH ALL FAULTS, equipment removal or 

reinstallation, shipping damage if the equipment was not packed and shipped in the manner we 
prescribe, nor equipment purchased, serviced, or operated outside the contiguous United States of 
America.

LEGAL LIMITATIONS

REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS YOUR EXCLUSIVE REMEDY. WE 
SHALL NOT BE HELD LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR 
BREACH OF ANY EXPRESSED OR IMPLIED WARRANTY ON THIS EQUIPMENT, NOR FOR ANY 
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF, OR INABILITY TO 
USE, THIS EQUIPMENT. UNDER NO CIRCUMSTANCES SHALL OUR LIABILITY, IF ANY, EXCEED 
THE PURCHASE PRICE PAID FOR THIS EQUIPMENT, EXCEPT TO THE EXTENT PROHIBITED BY 
APPLICABLE LAW. EXCEPT AS PROVIDED HEREIN, WE MAKE NO WARRANTIES, EXPRESS OR 
IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
PURPOSE. WE RESERVE THE RIGHT TO REFUSE TO HONOR THIS WARRANTY IF WE 
DETERMINE ANY OF THE ABOVE EXCEPTIONS TO HAVE CAUSED THIS EQUIPMENT NOT TO 
HAVE PERFORMED PROPERLY. THIS WARRANTY SHALL BE VOID IF ANY FACTORY-APPLIED 
IDENTIFICATION MARK, INCLUDING BUT NOT LIMITED TO SERIAL NUMBERS AND WARRANTY 
LABELS, HAS BEEN ALTERED OR REMOVED. THIS WARRANTY SHALL ALSO BE VOID IF THE 
TRANSMITTER OR HEADPHONES HAVE BEEN OPENED BY AN UNAUTHORIZED PERSON (with 
the exception of opening the battery lid on the outside of the headphones).

This warranty gives you specific legal rights which may vary from state to state. Some states do not allow 
the exclusion or limitation of incidental or consequential damages, or allow limitations on the duration of 
an implied warranty, so those limitations may not apply to you.

Note:

 No responsibility is assumed for the presence of interference outside of Amphony’s control, such 

as other transmitters or microwave ovens, which may hamper proper signal reception.

Summary of Contents for 2500

Page 1: ...R R User and Installation Guide 5 8 GHz DIGITAL Wireless Headphones Model 2500 ...

Page 2: ...f the transmitter by using an RCA cable if the electrical interface is used If the optical interface is used connect the transmitter by using an optical audio cable not included Analog Audio Interface Analog audio can be fed into the transmitter via the analog audio interface Analog audio is converted to digital audio inside the transmitter by an analog to digital converter The analog audio interf...

Page 3: ...o Source Power outlet AC adapter DC 9V 400 mA DC 9V DC 9V DATA OUT DATA OUT L R ANALOG IN L R ANALOG IN DIGITAL IN DIGITAL IN DIGITAL OUT Digital Audio Source Power outlet AC adapter DC 9V 400 mA User and Installation Guide Page 2 R R Using the electrical digital audio interface Using the analog audio interface ...

Page 4: ...e the range It is suggested to experiment in order to find the best location for the transmitter If sufficient coverage cannot be achieved by changing the location of the transmitter then the use of RangeBooster transmitters is suggested These RangeBooster transmitters are available as an accessory for your 2 4 GHz Digital Wireless Headphones from Amphony and can be located in areas where signal r...

Page 5: ...urs In order to fully charge the batteries leave them inside the charging bays for 48 hours After removing the batteries from the transmitter for use with the headphones insert the second pair of the batteries into the charging bays The second pair will be charged while the first pair is being used inside the headphones After the headphones stop working because of low batteries switch the first pa...

Page 6: ...de into the battery compartment The battery should snap into place Ensure that the plus pole of the battery properly contacts the battery contact inside the battery compartment to allow proper operation of the headphones If necessary rotate the battery inside the battery compartment until proper contact is established Finally close the battery lid by pushing the middle section It should snap into ...

Page 7: ...at either one of the digital interfaces the transmitter will activate the appropriate interface and light the corresponding interface indicator Set the volume control of the headphones to minimum Then switch on the headphones and slowly increase volume After each use be sure to switch off the headphones to extend battery life and to prevent damage to the headphones from leaking batteries When no a...

Page 8: ...s and maximum dynamics of the digital transmission and to avoid clipping of the audio it is necessary to set the analog audio interface level of the transmitter to correspond with the maximum audio level of the audio source This is done by turning the analog audio interface level control knob which will change the audio level inside the transmitter before it is converted to digital audio by the tr...

Page 9: ...contact rotate battery Headphone volume control at minimum Slowly increase volume at the headphones Transmitter audio level control at minimum Slowly rotate the transmitter audio level control if the analog audio interface is used No audio at headphones Receiver hung up Switch headphone power off and on Transmitter audio level control set too high Regulate the transmitter audio level control until...

Page 10: ...surges or voltage fluctuations may cause audio dropouts Try using a surge protector Strong interference See under Strong Interference above Too many obstacles Audio will drop out if there are too many obstacles between the transmitter and the headphones see page 3 try relocating the transmitter to improve reception or use RangeBooster transmitters Transmitter range is extremely short Batteries emp...

Page 11: ...fications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Made in China Technical Specifications Transmitter Audio transmission method Digital Transmitter frequency 5 8 GHz 1 Signal to Noise ratio A weighted typ 100 dB Dynamic range typ 100 dB Channel separation typ 100 dB Harmonic distortion typ 90 dB Error correction 1 2 rat...

Page 12: ...or neglected maintenance This warranty does not cover equipment sold AS IS or WITH ALL FAULTS equipment removal or reinstallation shipping damage if the equipment was not packed and shipped in the manner we prescribe nor equipment purchased serviced or operated outside the contiguous United States of America LEGAL LIMITATIONS REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS YOUR EXCLUSIVE REMEDY WE ...

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