Tube Amplifier Preamp - AIYIMA T9

Audio Amplifiers

Max storage of U-disk: 32G
Max storage of TF card: 32G
Tube model: 6K4*2
Frequency Response: ±3dB (20Hz-20KHz)
Treble/Mid/Bass range: ±6dB
Input sensitivity: 0.775V
THD: 0.05%
SNR: ≥98dB
Audio input: Bluetooth/Stereo RCA/U-disk/TF Card
Audio output: Stereo RCA / 3.5mm headphone jack
Supported formats of U-disk and TF Card: MP3 / WMA / APE / FLAC / WAV
Headphone Output Power: 100mW/32Ω
Matched headphone impedance: 16-64Ω
Working voltage: DC 12V
Dimensions(W*D*H): 115*128*33mm / 4.53*5.04*1.30in
Net weight: 420g / 0.93lb
Package weight: 700g / 1.54lb

Multiple audio inputs: with Bluetooth/RCA/U-disk/TF card inputs, can be perfectly compatible with iPod, Phone, MP3, TV, CD players, laptop, desktop computer or other streaming media players etc., satisfy most requirements of common home audio system use.

Multiple functions:

T9 can be used as a tube preamp, connected between audio source and amplifier or active speaker to greatly improve the sound quality. Default 6K4 tubes, and can be directly replaced by 6J1/6J4/GE5654/6AK5/6*1n to enjoy HiFi sound of different styles.

T9 can be used as a headphone amplifier, convenient to listen to lossless music alone or at night. The RCA and 3.5mm headphone jack can output at the same time to meet more needs.

T9 can be used as a digital player with U-disk and TF card inputs, supporting MP3 and other lossless format such as APE, FLAC, WAV, WMA. No need for any driver, plug and play, convenient to enjoy fun even on the road or outdoors.

HiFi clear sound with tone control and reasonable circuit layout:

T9 Adopting vacuum tubes design to filter out the digital sounds of common sound sources, making the sound warm and sweet, full and mellow, much softer and more listenable.

T9 Using NE5532 op amp for tone control, treble/mid/bass can be adjusted separately, easy to adjust more delicate sounds of different styles. Pluggable op amp socket design, easy to change other op amps to enjoy different sounds.

Mini size and exquisite appearance, black aluminum case make it more fashionable and powerful. With power/input mode indicators to clearly show the working status in real time, and full-function remote control makes the operation much easier, very suitable for home and desktop audio system use.

1. T9 is a tube preamp which needs to work with amplifiers or active speakers, cannot drive passive speakers or used with turntables directly. In RCA input mode, the previous / next song function is invalid.
2. The USB interface only supports U-disk and USB 2.0 thumb drive, not support PC-USB. And the RCA and 3.5mm headphone jack can output at the same time.

Package list:
1 x T9 Preamplifier
2 x 6K4 Tube
1 x DC12V Power Adaptor
1 x Bluetooth Antenna
1 x Manual
1 x Remote Control (no batteries)

All items in store may take 2 to 5 business days to process.  Please add processing time to your shipping estimate below.

Here is an estimate of the shipping times.  Due to factors that often affect international shipments, such as holidays, customs, and weather delays, we can only offer an estimate of shipping times. 


Estimated Shipping Time

United States

10-30 business days

Canada, Europe

15-40 business days

Australia, New Zealand

15-45 business days

Mexico, Central America, South America

20-60 business days 

Middle East (UAE, Saudi Arabia)

20-40 business days


IMPORTANT: We are not responsible if a package is undeliverable because of missing, incomplete, or incorrect destination information. Please enter the correct shipping details when checking out. If you realize you have made an error, simply e-mail us at as soon as possible. However there is a 72-hour wait list for email, therefore, if your order has left our warehouse within 72 hours, it is out of our control.
Aiyima is not responsible for destination country tax and/or any duty charge that may incur. Customers will be held accountable for any restrictions, duties, taxes, and any other fees collected from the destination country.
Aiyima will not be responsible for any Duties, Taxes, or Customs fees under any circumstances.
If the order arrives in your country and...
• The customer refuses to accept the package
• The number of attempts is made in the country of destination to deliver the package.
Aiyima reserves the right to abandon the package(s) and will not be responsible for any refund.

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