Fosi Audio BT30D Pro HiFi Bluetooth 5.0 Power Amplifier User Manual

: July 26, 2024
: Fosi Audio

Table of Contents

Introduction
Package Contents
Introduction
Specifications
Operation Guide
Frequently Asked Questions
Warranty and Maintenanc
About Us
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

BT30D Pro User Manual

Introduction

Thank you for purchasing the Fosi Audio BT30D PRO HiFi Bluetooth 5.0 Power Amplifier.
The Fosi Audio BT30D PRO is a high-performance HiFi Bluetooth 5.0 power amplifier equipped with SUB volume/frequency control and bass/treble adjustment features. It supports both Bluetooth and RCA inputs, making it compatible with most passive speakers as well as passive/active subwoofers. Featuring dual Texas Instruments TPA3255 chips, this amplifier ensures stable power output and delivers ultra-clear, low-distortion sound quality. It provides an ideal audio solution, inviting you to embark on an audiophile’s musical journey and fulfilling your demands for high-quality sound.

Package Contents

Introduction

1 Input Mode Indicator
3 Subwoofer Frequency Control
5 Treble Control
7 Volume Control
9 Pre-Out
11 Passive Subwoofer Binding Posts
13 Bluetooth Antenna Interface| 2 Power Switch
4 Subwoofer Volume Control
6 Bass Control
8 RCA Input
10 Passive Speakers Binding Posts
12 Power In
14 Bluetooth Antenna
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Specifications

Channel	2.1
Amplifier Chip	Texas Instrumets TPA3255*2
Input	Bluetooth, RCA
Output	Passive Speakers /Subwoofer, Pre-Out
SNR	≥108dB
THD	≤ 0.04%
Terminating lmpedance	2-8Ω
MAX Power Output	165W x2+350W(@4Ω)
Frequency Range	20Hz-20kHz(±1dB)
Input Sensitivity	700mV
Bluetooth Transmission Distance	≤15m
Power Input Range	DC 12-36V

Operation Guide

Connect passive speakers to the passive speaker output of this device, and connect a passive subwoofer to the passive subwoofer port (for active subwoofers, please use the Pre-Out port);
Use RCA cables to connect the audio source to this device (if using Bluetooth input, please refer to step 4);
Power up the BT30D PRO and set the volume to the lowest level to avoid damaging your hearing or audio equipment;
Turn on the device (for Bluetooth, activate the Bluetooth function on your audio source and pairing it with this device; a blue light on the front panel will indicate a successful connection);
Play music on your audio source, and gradually adjust the volume, treble, bass, and subwoofer volume and frequency to the desired levels to start enjoying your music.

Note:

Please ensure all cables are connected correctly;
To switch from Bluetooth to RCA mode, simply disconnect the Bluetooth on your audio source device.

Frequently Asked Questions

1. Experiencing noise during music playback?

A. Bluetooth Input Mode: Weak or unstable Bluetooth signals can cause this issue. Move your Bluetooth device closer to the BT30D PRO or try connecting with a different Bluetooth device. B. RCA Input Mode: Ensure that the cables are properly connected. If the issue persists, consider replacing the RCA cables. C. Try replacing the speaker cables. D. Lower the treble gain level. E. Ensure the BT30D PRO is placed away from other electrical devices to avoid interference.

2. No audio output despite all cables being connected?

A. Check if the indicator lights on the amplifier's front panel and power source are illuminated. B. Verify if the volume knob is set to the minimum. C. Ensure that the input mode is correct. D. Check if the audio source is paused. E. Try replacing the audio source, cables, and speakers/subwoofer. F. Restart the BT30D PRO and the audio source and try again.

3. Bluetooth device unable to pair with the BT30D PRO?

A. This product can only connect to one device at a time and has an auto- reconnect feature. Check if the product is already connected to another device. B. Try restarting the device after removing the Bluetooth antenna. Once successfully connected, reinstall the Bluetooth antenna. C. Attempt pairing by bringing the Bluetooth device closer to the BT30D PRO, ensuring there are no obstacles between them. D. Test with a different Bluetooth device.

4. One channel is not producing sound?

A. Test both Bluetooth and RCA inputs to determine if the issue persists across both modes. If the problem occurs only in one mode, try changing the Bluetooth device or the audio cables. B. If the issue is present in both modes, swap the speaker cables between the left and right channels, or try a different speaker to test if the channel still fails to work. If the problem is still not solved, please contact our support team.circuit.

5. Is the sound suddenly cutting out?

A. Try reducing the volume of the audio source. B. Test with a different audio source. C. Lower the gain of the bass and treble. D. Ensure that the positive and negative speaker outputs are not too close; large banana plugs can easily make contact and cause a short circuit.

6. What is the purpose of the SUB FREQ knob? Does it only adjust the frequency output for passive subwoofers?

The SUB FREQ knob is used to adjust the output frequency of passive subwoofers, with an adjustment range from 0 to 300 Hz.

Warranty and Maintenanc

Fosi Audio pledges to give a 24-month limited warranty and support from the date of purchase. If you encounter any problem when using our product, please contact our support team at support@fosiaudio.com.

About Us

Fosi Audio designs and builds innovative audio products with all your music in mind. Great sound, simple but elegant designs, high-quality components, and truly useful features are what Fosi Audio pursues. We sincerely hope you can get as much enjoyment from our products as we’ve had to create them!
Official Website: www.fosiaudio.com
Amazon Store: www.amazon.com/fosiaudio
Facebook Page: www.facebook.com/fosiaudioglobal
Youtube Channel: www.youtube.com/@fosiaudio
Official Forum: community.fosiaudio.com
Whatsapp: +86 13716612254
After-Sales Service and Technical Support Email:support@fosiaudio.com

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