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Need help?Do you have a question about the Aiyima T8 and is the answer not in the manual?
Check if the machine is on, input channel is correct, volume is up, and playback device is not silent.
Ensure the device is in Bluetooth mode; it does not work when using other input channels.
Adjust front or rear stage volumes to prevent distortion if amplification is at maximum.
Use the original power supply and shielded signal lines to prevent noise from interference.
Do not open the shell without permission to avoid damage or electric shock.
Use only regular manufacturer switching power supplies to prevent machine damage.
Do not change vacuum tubes arbitrarily to prevent damage to the tube or machine.
Avoid placing the machine in high temperature or humid environments.
Connect audio source, back-end equipment, power supply, and switch input channels.
Connect via USB, select as playback device, and set as default for PC audio output.
Overview of remote buttons for power, input selection, mute, volume, and display.
This document describes the AIYIMA® AUDIO Bluetooth 5.0 TUBE 6N3 Headphone Preamplifier, a versatile audio device designed to enhance your listening experience. It functions as both a DAC (Digital-to-Analog Converter) and an amplifier, offering multiple input and output options, as well as convenient control features.
The core function of this device is to process and amplify audio signals, providing a high-quality output for headphones or other audio equipment. It supports various input sources, including Bluetooth, coaxial (COA), optical (OPT), and PC-USB, making it adaptable to different setups. The preamplifier also features a 3.5mm headphone output with priority, meaning that when headphones are connected, the audio will be routed there. A unique feature allows for switching between simultaneous output to both headphones and RCA, or individual headphone output, by double-clicking the main knob. This flexibility caters to different listening preferences and setups.
The device offers intuitive controls for ease of use. The front panel includes an OLED display for clear status indication. A multi-functional encoder knob serves several purposes: a short press powers the device on or selects the input mode, rotating it adjusts the volume, and a long press powers it off. When both the headset and RCA output are connected, double-clicking the knob allows you to toggle between simultaneous output to both or individual headphone output.
For remote operation, a dedicated remote control is provided. This remote allows you to power the device on/off, select input sources, mute the audio, adjust bass and treble levels, control volume, and toggle the OLED display on/off.
Connecting the device to a PC via the PC-USB interface is straightforward. It supports hot-plugging, and once connected, you can switch the input to PC-USB mode using the encoder knob. The device is designed for automatic identification by your computer, eliminating the need for manual driver installation. You simply need to select the recognized USB device as the default playback device in your computer's sound settings.
When connecting audio sources, you should use the appropriate input interface. For Bluetooth connectivity, ensure the input channel is switched to Bluetooth mode. The device is designed to connect to back-end equipment such as power amplifiers or active speakers via its audio output interface. It requires a DC 12V power supply.
To ensure optimal performance and longevity of the device, several maintenance guidelines are provided. It is crucial not to open the shell without permission, as improper operation can lead to damage or electric shock. The device should be powered by a regular manufacturer's switching power supply to prevent the risk of damage.
Regarding the vacuum tube, it is advised not to change it at will, as this could burn out the tube or the machine itself. The device should also not be placed in high-temperature or humid environments.
Troubleshooting tips are included to address common issues. If there is no sound, check if the machine is powered on, the correct input channel is selected, connections are secure, and the volume is not at its minimum. If you experience difficulty searching for Bluetooth pairing names, ensure the input is switched to Bluetooth mode, as Bluetooth functionality is not active when other channels are in use.
In cases of sound distortion, it's noted that while the product functions as a DAC, it also amplifies. If the volume of both the rear stage device and the preamplifier are turned up to the maximum, distortion can occur. Reducing the volume of either stage should resolve this.
If there is electrical noise from the horn, it is recommended to replace the power supply with the original standard one and retest, as many power supplies can introduce ripple interference. If the speaker produces a loud buzzing sound when an input cord is plugged in without an audio source playing, it suggests that an unshielded signal line might be picking up interference. Replacing it with a shielded signal line or unplugging the signal line should resolve the issue.
General| Input Impedance | 47kΩ |
|---|---|
| Signal-to-Noise Ratio | ≥100dB |
| Power Supply | AC 110V-220V 50/60Hz |
| Bluetooth | Yes |
| Bluetooth Version | 5.0 |
| Bluetooth Range | 10m |
| Frequency Response | 20Hz-20kHz |
| Input mode | Bluetooth |
