Our take
Aiyima T8 6N3 Digital Tube Preamplifier Bluetooth 5.0 Hi-Fi Headphone Vacuum Tube Preamp for Home Wireless Receiver Audio Decoder Preamp PC-USB DAC APTX + with Remote Control
- Multiple audio input methods, supports Bluetooth 5.0 / PC-USB / RCA inputs from various devices like iPod, Phone, MP3, TV, DVD players, laptop, desktop computer or other streaming media players etc., it's a nice vacuum headphone tube preamp exclusively designed for the customers who pursue HiFi sound.
- Aiyima T8 Bluetooth Tube Preamplifier can be used as a headphone amplifier, enjoy high-quality lossless music anytime, RCA / 3.5mm headphone output (with priority), RCA output to the powered speaker, amplifier & passive speaker, headphone output is suitable for 16~300Ω headphone/headset.
- QCC3031 Bluetooth 5.0, supports aptX, aptX LL lossless transmission, faster and stable signal transmission, for you to enjoy the HiFi sound.
- Adopts the 6N3 tube vacuum design for easy replacement (such as 6N3, 6H3, GE5657, 396A, 2C51, 12B4A, GE5670, 6H3n-E) with DC 12V power adapter, provides a warm retro tube sound, with independent gain adjustment design for treble and bass.
Product details
Features
- QCC3031 Bluetooth 5.0, supports Qualcomm aptX and aptX HD
- With Bluetooth / RCA / PC-USB / Coaxial / Optical Audio inputs
- Vacuum tube : 6N3, replaceable tubes are GE5657, 396A, 2c51, 12BA4, 5670, 6H3n
- PC-USB support operating system : XP / W7 / W8 / W10 / MAC / Linux
- RCA & 3.5mm headphone Audio outputs
- With DC 12V Power Adapter
- With OLED digital display
Classical Tube 6N3 Design
Aiyima T8 Bluetooth Tube Preamplifier is a tube headphone Preamp, which uses MAX9722 headphone amp chip, and 6N3 tubes for a warm and smoother sound.
Tubes can be replaced with GE5657, 396A, 2c51, 12BA4, 5670, 6H3n, etc,.
You can change the tubes according to your needs to achieve different sound results.
Multi-Function Switch Knob
Rotate the red knob to adjust the volume according to your preferences.
Press the knob to switch ON or OFF; when the headset and RCA output are connected at the same time, you can double click the button to switch to simultaneous output to the headset and RCA (headset output is default).
Exquisite and Unique Design
The visual OLED digital display is more intuitive and clear, and the operation is more simple and convenient.
Aiyima T8 Bluetooth Tube Preamplifier is a custom-made, unique and exquisitely designed for everyone who loves HiFi, audiophiles and beginners.
- Headphone impedance matching is 16-300Ω
- Aiyima T8 Bluetooth Tube Preamplifier is compatible with iPod, Phone, MP3, TV, Echo Dot, laptop, desktop computer or other streaming media players etc.
- Satisfies most requirements for common home audio system use
Headphone Amplifier Chip : MAX9722
◆THD+N is only 0.009% ◆High PSRR (80dB at 217Hz) without LDO ◆No need for large-size DC blocking capacitors ◆The output is ground-referenced, eliminating the DC bias voltage of the earphone ground pin ◆The output capacitor will not make the low frequency response worse ◆Differential input enhances noise suppression ◆Adjustable gain (MAX9722A) or fixed -2V/V gain (MAX9722B) ◆Each channel provides 130mW power for 32Q load ◆Integrated noise suppression circuit ◆Low quiescent current (5.5mA) ◆Short circuit protection and thermal overload protection ◆The amplifier output has ±8kV ESD protection (human body model)
PC-USB Decoder Chip : CM6642
The PC-USB decoder chip is a low-power single-chip USB 2.0 high-speed audio codec with built-in MCU, integrated PWM LED driver and 3-channel ADC / 2-channel DAC and S/PDIF interface.
Decoder Chip : ES9018K2M
It is a high-performance 24-bit 192kHz, 2-channel audio D/a converter for audiophile-grade portable applications, such as mobile phones and digital music players, user applications such as Blu-ray players, audio preamplifiers and a receiver , And professional applications such as recording systems, mixers, game consoles and digital audio.
Operation Step :
1. Connect the audio source to the audio source input interface (when connecting to Bluetooth, the input channel must be switched to Bluetooth input)
2. Connect the external downstream equipment 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. Rotate the knob clockwise to select the desired volume
PC-USB Operation Instruction :
1. Use the factory-configured USB cable to connect the PC-USB interface of this machine to the computer (USB supports hot swap).
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 [Playback Device].
5. In the pop-up dialog box, select the USB device recognized by the PC (the machine automatically recognizes the USB, no manual driver installation is required).
6. Click to confirm the recognized digital output and set it as default.
Tech specs
PC-USB sampling rate: 96K/24Bit
Distortion: RCA: 0.2%
HP: 0.003%
Bluetooth version: 5.0, QCC3031 Qualcomm aptX & aptX HD
Vacuum tube: 6N3, replaceable with GE5657, 396A, 2c51, 12BA4, 5670, 6H3n
PC-USB support operating system: XP/W7/W8/W10/MAC/Linux
SNR: RCA: 108dB
HP: 106dB
Headphone impedance matching: 16-300Ω
Working voltage: DC12V
Maximum output power: RCA: 1.9V
HP: 120mW@32Ω
Input sensitivity: 2V
Frequency response: 20Hz-20kHz (±0.5dB)
OP Amp Chip: OPA1656
• Ultra low noise: – Voltage noise: 2.9nV/√Hz at 10kHz
– Current noise: 6fA/√Hz at 1kHz
• Low distortion: – 0.000029% (–131dB) at 1kHz
– 0.000035% (–129dB) at 20kHz
• Open loop gain: 150dB
• Output current: 100mA
• Input bias current: 10pA
• Slew rate: 24V/μs
• Bandwidth gain: 53MHz
• Output: Rail-to-rail
• Quiescent current: 3.9mA per channel
Headphone Amplifier Chip : MAX9722
THD+N: 0.009%
PSRR: (80dB at 217Hz) without LDO
Adjustable gain (MAX9722A) or fixed -2V/V gain (MAX9722B)
Power (each channel) provides 130mW power for 32Q load
◆Integrated noise suppression circuit
Quiescent current (5.5mA)
◆Short circuit protection and thermal overload protection
◆The amplifier output has ±8kV ESD protection (human body model)
PC-USB Decoder Chip: CM6642
Decoder Chip: ES9018K2M
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