Fosi Audio T3 - User Manual

BRING THE SOUND TO YOUR HEART
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User Manual

Summary

Foreword

Specifications

Packing List

Product Overview & Control Functions

Top panel

Illustrates and labels the control knobs and tubes on the top surface of the T3 amplifier.

Real Panel

Shows and explains the various input/output ports and the power switch on the rear of the T3.

Bluetooth Mode

AUX Mode

Trouble shooting;QA

About Fosi Audio

Overview

1. Function Description
2. Usage Features
3. Getting Started
4. Powering On
5. Input Selection
6. Bluetooth Mode
7. AUX Mode
8. Volume Control
9. Tone Controls
10. Speaker Output
11. Active Subwoofer Output
12. Headphone Output
13. Tube Operation
14. Maintenance Features
15. General Troubleshooting
16. Power Supply
17. Speaker Compatibility
18. Customer Support

The Fosi Audio T3 is a Hi-Fi Bluetooth stereo 2.1-channel tube amplifier designed to enhance your audio experience by delivering warm and natural sound quality. This user manual provides comprehensive instructions for operating and maintaining the T3, ensuring you get the most out of your purchase.

Function Description

The T3 Tube amplifier serves as a central hub for your audio setup, offering multiple input options and a robust output to drive your speakers and headphones. Its primary function is to amplify audio signals, imparting the characteristic warmth and richness associated with tube amplification, while its solid-state power amplifier section ensures superb audio fidelity and efficiency.

Usage Features

The Fosi Audio T3 is designed for ease of use, offering intuitive controls and versatile connectivity options.

Getting Started:

To begin using your T3, first ensure all necessary connections are made. The amplifier operates on AC110-240V, making it suitable for various power environments.

Powering On:

Locate the power switch on the real panel of the amplifier. Turn it on to power up the device.

Input Selection:

The T3 offers multiple input sources: Bluetooth (BT), AUX1, and AUX2. A source selector knob on the top panel allows you to switch between these inputs.

Bluetooth Mode:

Upon booting, the T3 Tube Amplifier defaults to Bluetooth mode and automatically enters pairing mode.

1. Turn on the power switch.
2. The amplifier will automatically enter Bluetooth pairing mode.
3. On your Bluetooth-enabled device (e.g., smartphone, tablet), search for "Fosi Audio T3" in the Bluetooth settings and select it to pair.
4. Once paired, you can stream audio wirelessly to the amplifier.

AUX Mode:

The T3 supports up to two stereo line output sources via its RCA inputs, labeled "AUX 1/AUX2."

1. Connect your audio device (e.g., CD player, DVD player, streamer) to either the AUX1 or AUX2 RCA input ports on the real panel using appropriate RCA cables.
2. Prior to playing audio, turn the source selector knob on the top panel to the corresponding AUX1 or AUX2 setting.
3. Ensure your source device is playing audio.

Volume Control:

The large knob on the top panel is the master volume control. Rotate it clockwise to increase the volume and counter-clockwise to decrease it.

Tone Controls:

The T3 features dedicated bass and treble knobs on the top panel. These allow you to fine-tune the low and high frequencies of your audio to match your preferences or the acoustics of your listening environment.

• Bass knob: Adjusts the level of low-frequency sounds.
• Treble knob: Adjusts the level of high-frequency sounds.

Speaker Output:

The T3 is designed to work with passive speakers. Connect your speakers to the speaker output terminals on the real panel. Ensure proper polarity (+ to + and - to -) for optimal sound. The amplifier supports 4-8Ω passive speakers.

Active Subwoofer Output:

For enhanced bass, the T3 includes an active subwoofer output. Connect an active subwoofer to this output for a more immersive audio experience. Note that this output does not support passive subwoofers.

Headphone Output:

The T3 also functions as a headphone amplifier. Plug your headphones into the headphone output jack on the real panel. When headphones are plugged in, the speaker output connections are automatically disengaged, allowing for private listening. The T3 is capable of driving most headphones to deliver a colossal sound stage and effortless dynamic range.

Tube Operation:

The T3 incorporates two 6F2 tubes, which are visible on the top panel. These tubes are integral to the amplifier's warm and natural sound signature.

Maintenance Features

Proper maintenance and troubleshooting can help ensure the longevity and optimal performance of your Fosi Audio T3 amplifier.

General Troubleshooting:

• No Sound from Amplifier:

  • Verify that the power supply cable is securely connected to the T3 and that the power switch is in the "ON" position.
  • Ensure the T3 and your audio source components are turned on and not set to minimum volume. Try replacing your audio source and testing again.
  • Check all wire connections from the audio source to the amplifier and from the amplifier to each speaker. Ensure they are correctly connected.
  • Confirm that cables are not loose or damaged. Incomplete connections are a common cause of no sound.
  • If using RCA input, ensure Bluetooth is disconnected. If Bluetooth is paired, RCA input playback will be interrupted. Disconnect Bluetooth first if you intend to use RCA.

• Cracking Sound or Electric Noise:

  • Try using a different Bluetooth device to rule out the source device as the issue.
  • Ensure all cables are fully pushed into their respective devices. Incomplete connections can cause cracking.
  • Remove all inputs and check if the cracking noise disappears. The noise might originate from the audio source or input cables.
  • If you are not using the original factory standard power supply, replace it with the original or a high-quality alternative. Many aftermarket power supply adapters can introduce significant interference, leading to current noise.

• Intermittent Bluetooth Connection:

  • Attempt to pair with another Bluetooth device to see if the issue persists.
  • Ensure there is no interference from other electronic equipment between the T3 and your audio source device.
  • Place your Bluetooth device closer to the T3. Obstacles can affect Bluetooth operation distance.
  • Unplug and replug the power adapter to reset the Bluetooth module.
  • Try reconnecting the power supply to the T3 and moving the amplifier to a different room to test for environmental interference.
  • Restart the T3 and then attempt to connect again, possibly with a different Bluetooth device.

• Bluetooth Device Cannot Pair with T3:

  • Confirm that the T3 is powered on.
  • Bring your device closer to the T3 to improve signal strength.
  • Ensure there are no physical obstacles between your device and the T3, as these can impede Bluetooth range.
  • Test with another Bluetooth audio source to verify if the issue is specific to your device.
  • Reconnect the power supply to the T3 and try pairing again.
  • Move the T3 to another room and attempt to pair, in case of localized interference.
  • Restart the T3 and then try to connect again, using another Bluetooth device if possible.

Power Supply:

Always use the original factory standard power supply provided with the T3. Using third-party power supplies with high interference coefficients can lead to unwanted current noise.

Speaker Compatibility:

The T3 is designed for passive speakers with an impedance of 4-8Ω. Ensure your speakers meet these requirements for optimal performance and to prevent damage to the amplifier.

Customer Support:

If you encounter any problems or have suggestions for the product, Fosi Audio provides dedicated customer support. You can reach them via email at support@fosiaudio.com. Additional resources, including their website (www.fosiaudio.com), Amazon store (www.amazon.com/fosiaudio), Youtube channel (Fosi Audio), and Facebook page (Fosi Audio), are available for further assistance and information.

By following these guidelines, you can ensure a smooth and enjoyable experience with your Fosi Audio T3 Tube amplifier, bringing the sound to your heart with its rich and engaging audio performance.

Fosi Audio T3 Specifications

General

Product Type	Tube Amplifier
Input	RCA, Bluetooth
Output	Speaker Output
Power Supply	DC24V/4.5A
Power Output	50W x2 @4Ω
Bluetooth Chip	QCC3031
Frequency Response	20Hz-20kHz