Price: $109.99 - $87.99
(as of Oct 07, 2025 13:01:41 UTC – Details)
Product description
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Fosi Audio BT30D PRO Merchant Video
Redefining HiFi with Unmatched Value
THD: ≤ 0.03%; SNR: ≥ 108dB; Frequency Range: 20Hz – 20kHz (±1 dB) BT30D PRO supports impedance of 2-8Ω, Rated Power Output: 32V/5A 100W x 2 per channel@4Ω; Maximum Power Output: 32V/5A 130W x 2 per channel@4Ω; 48V/5A 165W x 2 per channel@4Ω. (24-48V support 48V5A power supply, but this link with 32V5A power supply, not include 48V5A power supply.)Input: Bluetooth + RCA; Input Sensitivity: ≤ 600mV Output: Passive/Active Speakers+ Passive/Active Subwoofer 
One Device for All Needs
Reliable power amplifier suited for high impedance speakers and subwoofer
Stable Connectivity
You will have crystal clear audio even over Bluetooth and the range is easily more than 15m.
Ideal for Your Subwoofer
Incredibly powerful bass that stirs up thousands of waves.
Max Output Power 165W×2+350W
Two advanced chips ensure pure and powerful sound with great clarify and separation.
1 2.1 Channel
2 Bluetooth 5.0
3 Bass Beast
4 TPA3255 Chips
1 Computer Desktop
2 Home Theater
3 Outdoor Courtyard
All-Aluminum Alloy Chassis
This little Amp comes nicely packaged with a solid feel to the case and the controls and connectors.
1 Front Panel
2 Rear Panel
3 Physically Well Made
4 Power Rating
Knobs designed for subwoofer
The SUB FREQ knob allows frequency adjustment of passive subwoofers from 0 to 300 Hz, and the SUB VOL knob sets their volume.
Pre-Out Connector
Build a home stereo system on your desktop by connecting a powered speaker, subwoofer, or amplifier to the BT30D Pro through the 3.5mm PRE output for a compact audio receiver setup.
Friendly Solutions Guide
Friendly Solutions Guide
1. Function Troubleshooting
– Ensure all wiring is correct (connect the positive speaker wire to the amplifier’s positive terminal, the negative to the negative terminal, and make sure the speaker wires do not touch each other, as this could cause a short circuit and potentially damage the amplifier).
2. Bluetooth Connectivity
– Make sure all connections are correct. – Ensure that there are no other interference signals or electrical devices located nearby. – Move the amplifier closer to the Bluetooth device to improve signal strength. – Remove and reattach the BT antenna, making sure it is hand-tightened, or replace it with another antenna to test. – Remove all Bluetooth pairings from all devices and move around the room to test for connectivity. – Try using another Bluetooth device to play music. – The device does not have a Bluetooth reconnection function. To reconnect, can click on the Bluetooth device name in the paired device list.
3. Audio Sound Quality:
– Audio Quality: Different audio source qualities affect the sound quality. It is recommended to use high-quality, lossless audio files, such as FLAC, WAV and other formats, to obtain a better sound quality experience. – BT30D PRO supports impedance of 2-8Ω. Speaker impedance that is too low or too high will cause unstable amplifier output and affect the sound quality performance. – Please replace with a high-quality RCA cable with good shielding to prevent noise.
4. Compatibility:
– Note: The active subwoofer must be connected to the “Pre-Out” port, and only the master volume control knob can adjust its volume; passive subwoofer must be connected to the“Sub Output”port and can be adjusted via the bass and volume knobs.
– Suggest Compatible Device: Speakers: KOSS M85, Energy RC-10, PSB Alpha P3, Monitor XT70 (pair), Taga Harmony TAV-807S (bookshelf speakers), Polk Atrium5, Polk Atrium4, Klipsch 600M, Mission M52. Subwoofers: Monoprice 10″ in-wall subwoofer, Polk HTS 10″.
2.1 Channel Amplifier:The BT30D PRO integrated amplifier features two sets of passive speaker outputs and one set of passive subwoofer outputs, making it easy to set up a 2.1 home theater or other stereo HiFi audio systems.
High Power with Exceptional Sound Quality:Equipped with two high-end Texas Instruments TPA3255 Class-D amplifier chips, the amplifier home audio delivers clear and pure sound without distortion or clipping, stably outputting up to 165W x 2 + 350W of power.
Bass Beast:Whether you’re a gamer, movie buff, or music lover, the subwoofer amplifier provides tight, smooth, and natural – sounding bass. It features two dedicated knobs for subwoofer control: the SUB FREQ knob allows precise frequency adjustment of passive subwoofers from 0 to 300 Hz, while the SUB VOL knob lets you set the desired volume level. This gives you full control over the bass output to suit your personal preferences and listening environment.
Bluetooth 5.0 Connectivity:This Bluetooth amplifier maintains a stable connection and delivers clear audio over a range of up to 15 meters. This makes it perfect for enjoying your favorite tunes or audio content in outdoor areas such as your yard, terrace, or poolside, without worrying about signal drop – outs or interruptions.
Exquisite Craftsmanship:This mini amplifier is meticulously crafted with a solid, all – metal body that ensures durability and longevity. The well – designed case, along with the high – quality controls and connectors, exudes a sense of premium build and attention to detail. The exquisite packaging further adds to the overall appeal and value of the bass amp.
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