Aiyima T8 Tube Amplifier Bt5.0 Pre-amplifier Decoder Hifi Preto

Descrição

PRODUTO NOVO A PRONTA ENTREGA.

ACOMPANHA FONTE 12V
CONTROLE REMOTO
CABO USB
PENDRIVE
ANTENA BLUETOOTH

Product name: Tube Preamplifier
PC-USB supports sampling rate: 192KHZ/24Bit
Distortion: RCA: 0.2%/HP: 0.003%
PC-USB support operating system: XP/W7/W8/W10/MAC/linux
Signal to noise ratio: RCA: 108dB
HP: 106dB
Headphone impedance matching: 16-300ohms
Working voltage: DC12V
Tube: 6H3N-EB (support replacement of 6N3 GE5657, 396A, 2c51, 12BA4, 5670, 6H3n)
Maximum output power: RCA: 1.9V
HP: 120mW@32ohms
Headphone amplifier chip: MAX9722
Bluetooth chip: QCC3031 Bluetooth 5.0 version, supports Qualcomm aptX and aptX HD audio
Operational amplifier chip: OPA1656
Decoding chip: ES9018K2M+CM6642
Input sensitivity: 2V
Frequency response: 20Hz-20kHz (±0.5dB)
Audio input: Bluetooth/ USB/ Optical/ Coaxial/ RCA
Audio output: 3.5mm Headphone output/ RCA(Active speaker / Amplifiers)
Size: 138x123x51MM
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Steps:
1. Connect the audio source to be used to the audio source input interface (when connecting to Bluetooth, the input channel must be switched to Bluetooth input)
2. Connect the downstream equipment that needs to be connected to the audio output interface (such as power amplifier, active speakers, etc.)
3. Connect the power supply (DC voltage must not be higher than 12V)
4. Press the encoder knob to turn on
5. Short press the knob to switch to the corresponding input channel to be used
6. Turn the knob clockwise to select the desired volume
PC-USB operating instructions:
1. Use the factory-configured USB cable to connect the PC-USB interface of this machine to the computer (USB supports hot swapping).
2. Press the encoder knob to switch to PC-USB input.
3. As shown in the figure, find the icon with the horn symbol in the lower right corner of the PC.
4. Right-click the pop-up dialog box, and click [Play Device].
5. In the pop-up dialog box, select the USB device recognized by the PC (this machine automatically recognizes the USB, no manual driver installation is required).
6. Click to confirm the recognized digital output and set it as default.
Common Problem:
Question: All my cables are connected, why is there no sound?
Answer: 1. Check whether the machine is turned on and whether it is switched to the corresponding input channel.
2. Check whether the downstream connection is correct and whether the volume is at the minimum.
3. If all the above are normal, check whether the input playback device is muted, paused, or the volume is at the minimum state.
Q: Why can't I search for the Bluetooth pairing name?
Answer: Due to the design of this unit, Bluetooth does not work when other channels are used for input. You only need to switch the input to Bluetooth mode.
Q: Why is the sound broken
Answer: Although this product is a DAC preamplifier, it also has an amplifying effect. If the volume of the secondary device is adjusted to the maximum and the preamplifier is also adjusted to the maximum, it will be easily distorted. At this time, you only need to adjust the volume of the preamplifier or the secondary amplifier. Just adjust it down.
Q: Why is there a loud electric current from the speaker?
Answer: If you are using a power supply that is not the original factory standard configuration, please replace the power supply before testing. Many power supplies on the market have large ripple interference coefficients, which can cause large current noise.
Q: Why does the speaker have a loud buzzing sound after I plug in the input cable and do not connect the playback source?
Answer: When the unshielded signal line is used, interference signals will enter the amplifier for amplification. Replace the shielded signal line to effectively solve the interference sound, or unplug the signal line.
Note:
1. Do not open the shell privately. Improper operation may damage the machine or cause the risk of electric shock.
2. Please use a switching power supply produced by a regular manufacturer, otherwise there is a risk of damage to the machine.
3. Do not change the tube at will, otherwise it will burn out your tube or machine.
4. Do not put the machine in high temperature or humid environment to work.
Package included:
1Pcs T8 Tube Preamplifier
1Pcs DC12V Power Supply

Garantia do vendedor: 3 meses