HiFiMAN EF100 User manual

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HIFIMAN
Innovating
the
Art
of
Listening
www.hifiman.cn

HIFIMAN EE1()0:
Thank
you
for
purchasing
the
HIFIMAN
EFlOO.
We
believe
it
is
one
of
the
finest
headphone
amplifier
available
on
the
market.
This
Owner's
Guide
is
intended
to
provide
a useful
overview
of
your
new
EFlOO
and
how
to
best
install
and
operate
it
for
many
years
of
enjoyment,
safety
and
satisfaction.
Please
take
the
time
to
familiarize
yourself
with
its features. If
you
have
any
questions
or
need
additional
information,
contact
your
authorized
HIFIMAN.
Product
Overview
The
HIFIMAN
EFlOO
is
a
powerful
hybrid
headphone
amplifier
and
integrated
amplifier.
Housed
in
its
compact
chassis lie
three
independent
amplifier
sections:
a
vacuum
tube
input
stage
works
as a
shared
preamp,
a Class
AB
headphone
amplifier,
and
a Class T
speaker
power
amplifier.
Benefitting
from
vacuum
tube
technology,
both
headphone
amplifier
and
power
amplifi-
er
sound
warm,
smooth,
detailed
and
musical.
Working
as an
hybrid
headphone
amplifier,
EFlOO
can
produce
a
2w
output
under
a 32
ohm
load
so
it
can
easily
drive
many
high
perfor-
mance
headphones.
In
addition,
EFlOO
can
also
serve
as a
hybrid
power
amplifier
to
drive
speakers
of
moderate
to
high
efficiency.
In
power
amplifier
mode,
the
amplifier
output
line
is
fully
independent
from
the
digital
amplifier
line
used
in
the
headphone
amplifier.
Driven
by
front
stage's
EFlOO
combines
the
warmth
vacuum
tubes,..,.,
,..,...
..
,"'"""
the
UJ;~
1
f~
'
e
,
l_lng
.
o<Dth
,,,,
warlds.
Ill

Specifications
Input
impedance:
47k
Output
impedance:
32-300
Ohm
Headphone
Output:
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Output
voltage
and
output
power
under
30
ohm
load:
7.8v,
2000
mw
Frequency
response:
20-20khz
+/-
0.2db
Power
amplifier
output:
Each
channel:
4.5w
(4
ohm
load)
Frequency
response:
20-20khz
+/-
ldb
0/N(A):
95db
Tube:
6N3J
•

HIFIMAN EF100 I
EFlOO Front panel layout
1. 6.35mm headphone jack: connect 4. Pull up to turn off USB mode
with 6.35mm interface headphone
5. Pull down to turn on USB mode
2. Pull up for line input 6. Turn on for headphone mode
3. Pull down for CD input 7. Turn on for speaker mode
EF1 00 Side panel layout
8. LINE-IN:3.5mm line inputjack
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EFlOO Rear panel layout
1. CD input ( left channel) 6. Power amplifier output ( left channel-)
2. CD input ( right channel )
7. Power amplifier output ( left channel+)
3. USB input jack 8. Switch
4. Power amplifier output ( right channel+)
9. AC power connection
5. Power amplifier output ( right channel-)
II

HIFIMAN EF100
Caution
1.
Before
connecting,
make
sure
your
local
power
supply
voltage
matches
the
voltage
of
the
supporting
transformer
. If
not,
or
you
are
not
sure, please
contact
your
authorized
HIFIMAN
dealer.
2.
Connect
the
power
cord
to
the
amplifier.
3.
Use an
audio
cable
to
connect
the
audio
input
jack
of
EF100
and
the
output
jack
of
the
music
source.
Do
not
reverse
the
L/R
channel
orientation.
4.
Turn
the
amplifier
on
and
you
will see
the
indicator
light
shining.
After
select-
ing
the
correct
music
source
input
switch,
you
are
ready
to
enjoy
listening.
5.
After
shutdown,
wait
at
least 5
seconds
before
turning
the
amp
back
on.
6.
Proper
operating
environment:
14
r
to
104r (
-lOOC
to
40°C)
with
natural
cooling.
7.
Always
keep
children
away
from
the
amplifier.
Keep
the
amplifier
away
from
other
dangerous
or
high-temperature
fusible
items, such as a
lighter,
butane
gas
tank,
air
freshener,
insecticide,
solid
alcohol,
gasoline
and
organic
etc
.
•

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Warranty
One-year free repair when installed, set up and used according
to our recommended instructions.
Contact us first to troubleshoot before returning and if needed
an RA will be issued.
Return shipping to HIFIMAN or authorized service facility is
owner's responsibility.
For residential use only.
For any further information or questions, please contact your
authorized HIFIMAN dealer.
Or email us directly at [email protected].
www.hifiman.com
II HIFIM
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