User`s manual

Compliance Certification Services Inc.
Report No：T11112830801-LV
National Differences
Clause Requirement − Test Result – Remark Verdict
Page 37 of 72
produced by the programme simulation noise,
the warning does not need to be given as
long as the average sound pressure of the
song is below the basic limit of 85 dBA. In this
case T becomes the duration of the song.
NOTE 4 Classical music typically has an average sound
pressure (long term L
Aeq,T
) which is much lower than the
average programme simulation noise. Therefore, if the
player is capable to analyse the song and compare it
with the programme simulation noise, the warning does
not need to be given as long as the average sound
pressure of the song is below the basic limit of 85 dBA.
For example, if the player is set with the programme
simulation noise to 85 dBA, but the average music level
of the song is only 65 dBA, there is no need to give a
warning or ask an acknowledgement as long as the
average sound level of the song is not above the basic
limit of 85 dBA.
Zx.3 Warning
The warning shall be placed on the
equipment, or on the packaging, or in the
instruction manual and shall consist of the
following:
− the symbol of Figure 1 with a minimum
height of 5 mm; and
− the following wording, or similar:
“To prevent possible hearing damage, do not
listen at high volume levels for long periods.”
Alternatively, the entire warning may be given
through the equipment display during use,
when the user is asked to acknowledge
activation of the higher level.
N
Zx.4 Requirements for listening devices
(headphones and earphones)
N
Zx.4.1 Wired listening devices with
analogue input
With 94 dBA sound pressure output L
Aeq,T
, the
input voltage of the fixed “programme
simulation noise” described in EN 50332-2
shall be ≥ 75 mV.
This requirement is applicable in any mode
where the headphones can operate (active or
passive), including any available setting (for
N