Aiyima T8 Installation and operation manual

Telephone: [phone] VK: https://vk.com/aiyima Location: 4F, Building 7 Hekan industrial park. Wuhe south road 41. Long-Gang district. ShenZhen. CHINA. 518000 Website:www.aiyima.com Email: [e-mail] Yima Technology Co.,Ltd4Q & ABluetooth 5.0 TUBE 6N3Headphone PreamplifierUSER MANUALSModel: T8① All my wires are connected. Why is there no sound?1. Check whether the machine is turned on and whether it has switched to the correspondinginput channel.2.Check whether the back-end connection is correct and whether the volume is inthe minimum state.3. If all the above are normal, check whether the input playbackdevice is silent，paused，or the volume is at its minimum.② Why can't I search for bluetooth pairing names?Due to the design of this machine,bluetooth does not work when using other channels for input.You just need to switch the input to Bluetooth mode.④ Why is there a lot of electrical noise from the horn?If you are not using the original standard power supply，please replace the powersupply andtest again.Many power supply ripple interference factor is large will causea lot of current sound.③ Why does the sound break？Although this product is the front stage of DAC, it also has the function of amplification.lf the volume of the rear stage device is turned up to the maximum, the volume of thefront stageis also turned up to the maximum, which is easy to distort. At this time，you just need to turndown the volume of the front stage or the rear stage.⑤ Why does the speaker make a loud buzzing sound when I plug in the input cordand don't playthe audio source?when the signal line without shield is used,the interference signal will enter the poweramplifier for amplification. Replacing the signal line with shield can effectivelysolve theinterference sound,or unplug the signal line.Warning !1. Do not open the shell without permission. Improper operation may damage the machine or cause electric shock.2. please use the regular manufacturer of switching power supply, otherwise there will be the risk of damage to the machine.3. Please do not change the vacuum tube at will, or it will burn out your vacuum tube or machine.4. Do not put the machine in a high temperature or humid environment.

Panel introduction 123PC-USB 0peration instructions1OLED Display2IR43.5mm Headphone Output(Priority)ParameterChipCM6642+ES9018+OPA1656+NJW1194+QCC3031+6N3+MAX9722PC-USB supports sampling rate192K/24BitDistortionRCA: 0.2%/HP: 0.003%PC-USB support operating systemXP/W7/W8/W10/MAC/linuxSignal to noise ratioRCA: 108dB/HP: 106dBHeadphone impedance16~300ΩOperating VoltageDC 12VMaximum output powerRCA:1.9V/HP: 120mW@32Ω① Connect the PC-USB interface to the computer with the USB cable configured by factory (USB supports hot plugging).② Press the encoder knob to switch to PC-USB input.③ As shown in the figure, find the icon with horn symbol in the lower right corner of④ Right click the pop-up dialog box and click 【Playback devices】⑤ Select the USB device recognized by PC from the pop-up dialog box (automatic IDENTIFICATION of NATIVE USB; manual installation of driver is not required ).⑥ Click the recognized digital output and set it as the default.Remote Instruction3(1) Short Press:* Power ON* Input Mode Select(2) Rotary Button: Volume Adjustment(3) Long Press: Power OFF(4) When the Headset and RCA output are connected at the same time: * Double-click the button (Press it twice continuously) to switch to thestate of simultaneous output of the headset and RCA;* Double-click again to switch back to the individual headphone output.5Bluetooth input6Audio output7Audio input8COA input9OPT input10PC-USB input11Power input(DC 12V)Input sensitivity2VFrequency response20Hz~20kHz(±0.5dB)Operation steps① Connect the audio source you need to use to the audio source input interface (switch the input channel to Bluetooth input when connecting bluetooth)② Connect the back-end equipment that needs external connection to the audio source output interface (such as power amplifier，active speaker,etc.)③ Connect power supply (DC voltage shall not be higher than 12V)④ Press the encoder knob to start the machine.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.1ON/OFF2Input Select3Mute4Bass+5Treble-6Treble+8Bass-11VOL-12VOL+13OLED ON/OFF