Superlux HMC631 User Manual
Page 4
4
Replacing the ear pads
The ear pads have to be replaced from
time to time for hygienic reasons. Each
of EPK631 ear pad kits includes one pair
of ear pads. Replacing the ear pads by
simply remove the old one. Restore the
new set of pads slowly along the edge of
the enclosures.
Cleaning the headphones
To clean the headphones, use a soft
damp cloth. If necessary, the head-
phones can be cleaned with soapy water
(use a mild cleanser such as washing-up
liquid).
Note: Do Not use solvent-containing cleansers!
Attention
Hearing Damage
Avoid using headphones with the volume
turned up for an extended period of time.
Following are guide line by Occupational
Safety and Health Administration and
CDC, NIOSH:
dB
SPL
Occupational noise
exposure 1991
NIOSH and
CDC 2002
85
8 hours
88
8 hours (90 dB SPL)
4 hours
91
6 hours (92 dB SPL)
2 hours
94
4 hours (95 dB SPL)
1 hours
97
3 hours
30 min
100
2 hours
15 min
103 1.5 hours (102 dB SPL)
7.5 min
106
1 hours (105 dB SPL)
< 4 min
109
30 min (110 dB SPL)
< 2 min
112
~ 1 min
115
15
min
~ 30 sec
Contact
Marketing and sales
Superlux Taiwan
+886-2-26931323
Manufacturing & logistics
Superlux Enterprise
Development(Shanghai)Co., Ltd.
www.superlux.com.tw