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Note: Once 3.5mm AUX plug in, the MM input will
automatically interrupted, so the input mode
will turn to 3.5mm AUX input.
Input priority: 3.5MM AUX input > MM turntable
input.
Step 4 : Connect the power adapter to BOX X4 and the
socket. Turn the Multi-function Knob (Volume
Control/Power Switch) clockwise to power on the
BOX X4.
Note 1: The power adapter does not have a power indicator
light, so connecting to the socket means power is
on.
Note 2: Before connecting the power supply, please make
sure that the BOX X4 is in “OFF” position when
connecting to the power adapter. Otherwise there is
a “POP” click sound from your speakers.
Note 3: Before connecting the power supply, please turn
down the volume control, the bass and treble control
to 0 (always to the left) to avoid your hearing from
damage.
When the connection is completed, please turn on the BOX X4
first, then turn on the amplifier (or powered speakers), at last
turn on your turntable or other audio source, then enjoy.
Note: If you turn on the amplifier (or powered
speakers) first, then turn on the BOX X4, there
is a “POP” click sound from your speakers, it is
normal that all the phono preamp have the
same issues, please don’t worry about it, the
“POP” click sound will not damage your
amplifiers or speakers.
Step 1: Install the 5654W vacuum tubes to the BOX X4.
Step 2 (OUTPUT) : Connect speakers or headphone (RCA
output, 3.5mm headphone output) to the
BOX X4.
• RCA Output : Use RCA cable to connect the RCA line
output of BOX X4 to your active (powered)
speakers. Or use RCA cable to connect the
RCA line output of BOX X4 to your amplifier,
then use speaker’s wire to connect the
amplifier with your passive speakers.
• 3.5mm Headphone Output : Use 3.5mm headphone line
to connect the 3.5mm
headphone output of BOX X4
to your headphone.
Step 3 (INPUT) : Connect the audio source (MM turntable
input, 3.5MM AUX input) to the BOX X4.
• MM Turntable Input : Use RCA Cable to connect your MM
turntable to the RCA inputs of
BOX X4, then connect the
ground wire of your MM turntable to
the grounding post of BOX X4.
Note 1: If your MM turntable is no need to connect a ground
wire, the ground wire can be omitted.
Note 2: MM Turntable Input can only be connected to the
turntable, and cannot be used as a normal preampli
fier connected to other audio sources, such as
mobile phones, MP3, etc.
• 3.5mm AUX Input : Use a 3.5mm Audio cable to connect
the BOX X4 and your device.
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