AIYIMA T9PRO JAN5725 Vacuum Tube Amplifier User Manual

Introduction

This manual provides detailed instructions for the safe and efficient operation of your AIYIMA T9PRO JAN5725 Vacuum Tube Amplifier. Please read this manual thoroughly before use and retain it for future reference.

This image displays the AIYIMA T9PRO amplifier from the front, showcasing its compact design, two illuminated vacuum tubes, digital display, and VU meter.

Safety Instructions

• Do not expose this device to rain or moisture.
• Do not disassemble the unit. Refer all servicing to qualified personnel.
• Ensure proper ventilation around the amplifier.
• Use only the specified power adapter (DC18-32V).
• Handle vacuum tubes with care as they can become hot during operation.
• Keep the device away from heat sources, direct sunlight, and strong magnetic fields.

Package Contents

Verify that all items are present in the package:

This image displays the contents of the AIYIMA T9PRO package, including the T9PRO tube amplifier unit, two JAN5725 vacuum tubes, a Bluetooth antenna, a remote control, a warranty card, a user manual, a PC-USB cable, and a DC24V power adapter.

• AIYIMA T9PRO Tube Amplifier x1
• JAN5725 Tube x2
• Bluetooth Antenna x1
• Remote Control x1
• Warranty Card x1
• User Manual x1
• PC-USB Cable x1
• DC24V Power Adapter x1

Product Overview

Front Panel

This image illustrates the front panel of the AIYIMA T9PRO amplifier, highlighting key components: two JAN5725 vacuum tubes, a Bluetooth antenna, a segment code display screen on the left, a VU level meter on the right, an ON/OFF/Switch channel button, and a multi-function button for volume, mute, and treble/bass adjustment.

• JAN5725 Tube: Two vacuum tubes for audio pre-amplification.
• Bluetooth Antenna: For wireless Bluetooth connectivity.
• Segment Code Display Screen: Displays current input source and volume level.
• VU Level Meter: Visual indicator of audio output level.
• ON/OFF/SELECT Button: Short press to power on/off or switch input channels. Long press to power off.
• Multi-function Button (MODE): Turn left/right to adjust volume. Short press to mute. Double click to adjust treble and bass.

Rear Panel

This image shows the rear panel of the AIYIMA T9PRO amplifier, detailing the various input and output ports: Bluetooth antenna connector, RCA (L/R) audio input, Coaxial (COA) input, Optical (OPT) input, PC-USB input, AUX output, Passive Speaker Output (SPK OUT), and DC 18-32V power input.

• BT Antenna Connector: Connect the provided Bluetooth antenna.
• AUDIO IN (RCA): Stereo RCA input for analog audio sources.
• COA (Coaxial): Digital coaxial input.
• OPT (Optical): Digital optical input.
• PC-USB: USB input for connecting to a computer as a DAC.
• AUX OUT: Analog audio output for connecting to another amplifier or active subwoofer.
• SPK OUT: Speaker terminals for passive speakers.
• DC 18-32V: Power input (5.5*2.5MM interface).

Setup

1. Tube Installation

Carefully insert the two JAN5725 vacuum tubes into their respective sockets on the top of the amplifier. Ensure they are seated firmly.

This image shows the two JAN5725 tubes installed on the amplifier, along with the overall dimensions of the unit (116mm length, 100mm width, 54mm height) and its net weight of 659g.

2. Antenna Connection

Screw the Bluetooth antenna onto the BT antenna connector on the rear panel.

3. Audio Connections

Connect your audio sources to the appropriate input ports (RCA, Coaxial, Optical, or PC-USB) on the rear panel.

Connect your passive speakers to the "SPK OUT" terminals. Ensure correct polarity (+ to + and - to -).

If using an active subwoofer or another amplifier, connect it to the "AUX OUT" port.

This diagram illustrates various connection possibilities for the T9PRO, including Bluetooth, RCA/PC-USB, and OPT/COA inputs, connecting to passive speakers, an active subwoofer, or another amplifier.

4. Power Connection

Connect the provided DC24V power adapter to the "DC 18-32V" input on the rear panel, then plug the adapter into a power outlet.

Operating Instructions

Power On/Off

Short press the U/SELECT button on the front panel to power on the amplifier. Long press the U/SELECT button to power off.

Input Selection

After powering on, short press the U/SELECT button repeatedly to cycle through the available input sources: Bluetooth (BT), RCA (AUX), Coaxial (COA), Optical (OPT), and PC-USB. The selected input will be displayed on the segment code screen.

This image shows the front panel display screen indicating "USB" input and a sample audio frequency, demonstrating the segment code display and its functionality.

Volume Control

Rotate the MODE multi-function button left or right to adjust the master volume.

Alternatively, use the volume buttons on the remote control.

Mute Function

Short press the MODE multi-function button to mute or unmute the audio.

Treble and Bass Adjustment

Double click the MODE multi-function button to enter treble/bass adjustment mode. Rotate the button to adjust the levels. Double click again to exit.

Treble and bass can also be adjusted using the remote control.

Bluetooth Pairing

Select "BT" input mode. The display will show "BT" and flash, indicating it's ready for pairing.

On your device (smartphone, tablet, etc.), search for Bluetooth devices and select "AIYIMA T9PRO" to connect.

Once connected, the "BT" indicator will stop flashing.

This image highlights the Bluetooth 5.1 and TPA3250 amplifier chip, emphasizing the advanced wireless connectivity and powerful audio processing capabilities of the T9PRO.

PC-USB DAC Operation

Connect the amplifier to your computer using the provided PC-USB cable.

Select "USB" input mode on the amplifier.

For Windows 10 and earlier, you may need to install drivers from the provided U-disk. For Mac OS, drivers are typically not required.

Select the AIYIMA T9PRO as the audio output device in your computer's sound settings.

Specifications

This image provides a detailed comparison of specifications between the AIYIMA T9PRO and the previous T9 model, outlining upgrades in tubes, display, Bluetooth chip, decoding chip, and PC-USB capabilities.

Troubleshooting

No Sound Output

• Check if the power adapter is securely connected and the amplifier is powered on.
• Verify that the correct input source is selected on the amplifier.
• Ensure speakers are correctly connected to the "SPK OUT" terminals with proper polarity.
• Check volume levels on both the amplifier and the audio source.
• If using PC-USB, ensure the T9PRO is selected as the default audio output device on your computer.

Bluetooth Connection Issues

• Ensure the amplifier is in "BT" input mode and the "BT" indicator is flashing.
• Make sure the Bluetooth antenna is securely attached.
• Try unpairing and re-pairing the device.
• Reduce the distance between the amplifier and the Bluetooth device.

Distorted Sound

• Check if the input signal level is too high, causing clipping. Reduce the volume on the source device.
• Ensure speaker impedance matches the amplifier's specifications.
• Verify that the vacuum tubes are properly seated.

Maintenance

• Keep the amplifier clean by wiping it with a soft, dry cloth.
• Avoid using harsh chemicals or abrasive cleaners.
• Ensure adequate ventilation to prevent overheating.
• When replacing vacuum tubes, ensure the amplifier is powered off and unplugged. Allow tubes to cool before handling.

Warranty and Support

The AIYIMA T9PRO amplifier comes with a standard manufacturer's warranty. Please refer to the included warranty card for specific terms and conditions.

For technical support or service inquiries, please contact AIYIMA customer service through their official website or the retailer where the product was purchased.

You can find more information and support at: www.aiyima.com

Product ASIN: B0BM3NP54B

Internal Product ID: X001O2ODXL