AVR 370 (serv.man4) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 90

 

Page 4 of 15 

Report No.: 215445 

 
 

ATTACHMENT 4 

Clause 

Requirement + Test 

Result - Remark 

Verdict 

       

TRF No. IEC60065K 

Cont. 

Zx Protection against excessive sound pressure from personal music 
players

 

 

Zx.1 General 
This sub-clause specifies requirements for 
protection against excessive sound pressure from 
personal music players that are closely coupled to 
the ear. It also specifies requirements for 
earphones and headphones intended for use with 
personal music players. 

 

A personal music player is a portable equipment  



for personal use, that: 

is designed to allow the user to listen to 


recorded  

or broadcast sound or video; and 

primarily uses headphones or earphones that 


can  

be worn in or on or around the ears; and 

allows the user to walk around while in use.



 

NOTE 1 Examples are hand-held or body-worn portable CD 
players, MP3 audio players, mobile phones with MP3 type 
features, PDA’s or similar equipment. 

 

A personal music player and earphones or 
headphones intended to be used with personal 
music players shall comply with the requirements of 
this sub-clause. 

 

The requirements in this sub-clause are valid for 
music or video mode only. 

 

The requirements do not apply: 

while the personal music player is connected 


to  

an external amplifier; or 

while the headphones or earphones are not 


used. 

NOTE 2 An external amplifier is an amplifier which is not part of 
the personal music player or the listening device, but which is 
intended to play the music as a standalone music player.

 

 

The requirements do not apply to: 

hearing aid equipment and professional 


 equipment; 

NOTE 3 Professional equipment is equipment sold through 
special sales channels. All products sold through normal 
electronics stores are considered not to be professional 
equipment. 

analogue personal music players (personal 


music   players without any kind of digital 
  processing of the sound signal) that are brought 
  to the market before the end of 2015. 

NOTE 4 This exemption has been allowed because this 
technology is falling out of use and it is expected that within a 
few years it will no longer exist. This exemption will not be 
extended to other technologies. 

 

For equipment which is clearly designed or 
intended for use by young children, the limits of 
EN 71-1 apply. 

No portable sound system.