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Fosi Audio BT30D Bluetooth 5.0 Stereo Audio Receiver Amplifier 2.1 Channel Mini Hi-Fi Class D Integrated Amp 50 Watt x2+100 Watt for Home Outdoor Passive Speakers/Subwoofer Powered Subwoofer
Price: $89.99 - $109.99
(as of Jun 17, 2025 00:43:09 UTC – Details)
Product Description
Our Story
Fosi Audio was founded with a simple goal: Build products that sound great and make people want to listen to music every day. We design, manufacture, and sell many Hi-Fi audio products on the market. We pursue your perfect music journey. Enjoy Hi-Fi music with Fosi Audio audio products!
Product Parameters:
2.1 CH Bluetooth Stereo Amp
Power Adapter: 24V/4.5ADC Input Range: 12-24VTHD: ≤ 0.04%, SNR: ≥ 98dBFrequency Range: 20Hz – 20kHz (±1 dB)Input Sensitivity: ≤ 280mV;Terminating Impedance: 2 – 8 OhmMAX Power Output: 50W x 2+100W Input Mode: Bluetooth and RCABluetooth Transmission Distance: Up to 50 FtPackage Include: BT30D Amp, Power Supply, User Manual
2 Channel Power Amp: BT10A, BT20A, TB10A, TB10D, V1.0B, V1.0G, TDA7498E, ZK-1002, ZK-502T. 2.1 Channel Power Amp: BT30D, BT30D Pro, BL20A, BL20C, ZK-TB21. DAC: Q4, K5 Pro, DS1, DS2. DAC Amplifier: PH04, DA2120A, DA2120C. Subwoofer Amp: TP-02, M01-BT, M02, M03, M04. Phono Preamp: BOX X1, BOX X2, BOX X3, BOX X4. Tube Preamp: P1. Tube Headphone Amplifier: T20, T20X, P2. Class AB Amplifier: T3.
Add powerful home theater-quality sound performance to your desktop with a compact amplifier style.
Deliver clear, accurate sound that’s loaded with Subwoofer volume and frequency control.
The upgraded DC outlet with a built-in power protection circuit, is safe for use.
The Fosi Audio BT30D Bluetooth Stereo Amplifier Receiver is the perfect solution for all of your audio needs!
Bluetooth 5.0 wireless audio streaming along with RCA jack to directly connect & stream audio from external devices.
Fosi Audio BT30D amp comes with an energy-efficient and stable 24V/4.5A power supply that can get efficient output power.
In order to fix the issue you may have more effectively, here are some tips:
–About Bluetooth connectivity issue:
1. Ensure that all wiring is correct.
2. There is no signal interference nearby.
3. Try using a different power source and outlet.
4. If there are multiple input modes, check whether other input modes work properly.
5. Try using different Bluetooth devices, speaker wires, and speakers.
6. Change the environment.
7. If there is a Bluetooth antenna included, ensure that it is connected correctly and try using a different antenna.
–About sound issue or not working properly:
1. Make sure all the cables are fully connected.
2. Adjust the treble and bass control of the power amplifier to achieve the right tone.
3. Please try to change the sound source and cables to test.
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Customer Reviews
4.4 out of 5 stars 681
4.4 out of 5 stars 2,708
4.4 out of 5 stars 1,104
4.5 out of 5 stars 1,851
4.6 out of 5 stars 879
4.0 out of 5 stars 75
Price
$79.99$79.99 $79.99$79.99 $95.99$95.99 $99.99$99.99 $79.99$79.99
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Type
Bluetooth 2.1 CH Amp with Remote Control Bluetooth 2.1 CH Amp Bluetooth 2.1 CH Amp Bluetooth 2.0 CH Amp Bluetooth 2.1 CH Amp Bluetooth Tube 2.1 CH Amp
MAX Power Output
100W x 2 50W x 2+100W 165W×2+350W 300W x 2 160W x 2 50W x 2
Input
Bluetooth + 3.5mm AUX + U-disk Bluetooth + RCA Bluetooth + RCA Bluetooth + RCA Bluetooth + RCA + U-disk Bluetooth + 3.5mm AUX1+3.5mm AUX2
Output
Passive Speakers + Active Speakers/Amplifier/Active Subwoofer Passive Speakers+Active/Passive Subwoofer Passive/Active Speakers+ Passive/Active Subwoofer Passive Speakers+Active Speakers/Sub/Amp Passive Speakers + Active Subwoofer Passive Speakers + Active Subwoofer+ Headphone
Treble & Bass Control
✓
✓
✓
✓
✓
✓
THD
≤ 0.001% ≤ 0.04% ≤ 0.3% ≤ 0.005% ≤ 0.05% ≤ 0.1%
SNR
≥ 92dB ≥ 98dB ≥ 85dB ≥108dB ≥ 98dB ≥ 80dB
Terminating Impedance
2-8 Ohm 2-8 Ohm 2-8 Ohm 2-8 Ohm 2-8 Ohm 4-8 Ohm
Power Adapter
24V/4.5A 24V/4.5A 32V/5A 32V/5A 24V/4.5A – no data
Work Voltage
AC 110V – 240V AC 110V – 240V AC 110V – 240V AC 110V – 240V AC 110V – 240V AC 110V – 240V
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Customer Reviews
4.1 out of 5 stars 242
4.3 out of 5 stars 1,289
4.6 out of 5 stars 2,870
4.2 out of 5 stars 771
4.2 out of 5 stars 348
4.4 out of 5 stars 150
Price
— no data
$89.99$89.99 $69.99$69.99 $79.99$79.99 $79.99$79.99 $59.99$59.99
Type
Bluetooth WiFi 2.1 CH Amp Bluetooth Tube 2.0 CH Amp Phono Preamp with Vacumm Tubes Phono Preamp with Vacumm Tubes DAC+Headphone Amp DAC+Headphone Amp
MAX Power Output
100W x 2 50W x 2 Note: It cannot be directly connected to passive speakers, but can only be connected to active speakers or amplifiers. Note: It cannot be directly connected to passive speakers, but can only be connected to active speakers or amplifiers. 120mW@32 Ohm(SE); 220mW@32 Ohm(BAL) 120mW@32 Ohm(SE); 250mW@32 Ohm(BAL)
Input
Bluetooth 5.0 + WIFI + 3.5mm AUX + U-disk Bluetooth + RCA RCA+3.5mm AUX RCA+3.5mm AUX Type C+ USB A Type C+ USB A
Output
Passive Speakers + PRE-OUT Passive Speakers + Headphone Active Speakers RCA+3.5mm AUX 3.5mm Headphone+ 4.4mm Headphone 3.5mm Headphone+ 4.4mm Headphone
Treble & Bass Control
✓
✓
x
✓
x x
THD
≤0.01% ≤ 0.04% ≤ 0.1% ≤ 0.1% ≤ 0.0006%(SE) ≤ 0.001%(BAL) ≤ 0.0006%(SE) ≤ 0.001%(BAL)
SNR
≥115dB ≥ 98dB ≥ 98dB ≥70dB ≥120dB ≥108dB
Terminating Impedance
2-8 Ohm 2-8 Ohm – no data
– no data
16-300 Ohm 16-300 Ohm
Power Adapter
24V/4.5A 24V/4.5A 12V/1.5A 12V/1.5A – no data
– no data
Work Voltage
AC 110V – 240V AC 110V – 240V AC 110V – 240V AC 110V – 240V – no data
– no data
2.1CH Bluetooth 5.0 Power Amplifier: This amp boasts an exquisite design, enhanced operation, and exceptional sound performance. It delivers a rich and immersive audio experience with its high-quality construction and user-friendly interface.
Versatile Connectivity with BT30D: The amplificador de audio supports both Bluetooth and RCA inputs, making it compatible with a wide range of audio devices. It can effortlessly drive most home passive speakers and both passive and powered subwoofers. With adjustable SUB volume and frequency, as well as bass and treble controls, it ensures a true Hi-Fi music quality tailored to your preferences.
High-Performance Audio Chip: The wireless stereo amplifier is powered by two Texas Instruments TPA3116D2 chips. These advanced stereo digital amplifier chips are designed for high efficiency and performance. They feature an advanced oscillator/PLL circuit with multiple switching frequency options to avoid AM interferences. This ensures high output power and superior audio quality, with a maximum power output of up to 200 watts.
Enhanced Bluetooth Connectivity: This Bluetooth 5.0 stereo audio amplifier receiver offers enhanced stability, improved sound quality, and an extended use distance. It supports a streaming range of up to 50 feet, ensuring seamless connectivity with the latest devices such as smartphones, tablets, laptops, and computers.
What You Get: BT30D audio amplifier x1, 24V/4.5A power supply x1, user manual x1. Everything you need to start enjoying good quality audio is included in the box.
Customers say
Customers praise the amplifier’s sound quality, noting it sounds great at high volumes with no discernable noise, and appreciate its ample power for speakers. The Bluetooth connectivity is seamless with solid phone connections, and customers find it good value for money with incredible sound quality for its price. They like its size, being smaller than expected and perfect for medium-sized home gyms, while the build quality is sturdy and reliable. The control panel receives positive feedback for its adjustable subwoofer frequency and relative volume, and one customer mentions it works well with a small but efficient speaker system.