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15: How can I connect T20 to TV?
• The 3.5mm AUX jack is the audio input. It can through 3.5mm
AUX input to connect your TV.
16: Why there is no voice from my amplifier?
• Please check whether the cable of power supply is connected to
T20 and whether the power indicator is on.
• Make sure the T20's indicator light is on when the power is turned
on.
• Please check that the T20 and your source components are
turned on and not set to minimum volume, if possible replace
your source and test again.
• Check that the wire connections from the audio source to each
speaker in the amplifier are connected correctly.
• Please check that the cable is not loose, damaged. Incomplete
connection is one of the main reasons for no sound.
• Please make sure the Bluetooth is paired or not, if Bluetooth is
connected, AUX input will be disconnected. If you want to
connect this amplifier with a 3.5mm AUX cable, you need to
disconnect the Bluetooth first.
• Please make sure that the headset is connected or not. If the
headset is connected, the speaker will be disconnected.
17: Which Bluetooth chip does T20 have?
• The T20 is equipped with QCC3031 Bluetooth chip, which
supports Apple acc and aptx.
Note: QCC3031 Bluetooth chip does not support apt-X LL.
18: an I use Bluetooth head phones with this unit?
• This tube amplifier is a Bluetooth receiver, not a Bluetooth
transmitter. It works with 3.5mm wired headphones.
• Make sure that the positive and negative terminals of the speaker
outputs do not touch each other. Some of the larger banana plugs
can easily touch each other and cause a short circuit
10: Can I bridge channel 1 and channel 2 to get 100watts?
• No, this amplifier can't be bridged.
11: Why does distortion occur?
• Because the vacuum tubes amplify the sound. If you turn the
sound up too loud, distortion may occur. Please try turning the
volume down a little.
12: Can I replace the vacuum tubes?
• If necessary, there are substitutions: EF95, 6AK5, 6AK5W,
403A/403B, 6J1, 6J1P, 6J2, 6J3, 6J4, 6J5 vacuum tubes, etc. You
can replace the vacuum tubes to DIY your stereo system.
Note: Please must remember switch off the power BEFORE you
pull out the tube, or it might damage the device.
13: Why the T20 came with a broken vacuum tube?
• Due to the long-distance, the vacuum tube may be damaged
during transportation. If you find that the vacuum tube is broken
or there is other problems, please contact our email, and we will
replace the vacuum tube for you.
14: Can headphones and speakers play at the same time?
• No, when the headphones plug in, the speakers' output will be
interrupted.
Output priority:
3.5mm Headphone Output > Speaker Output
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