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Fosi Audio M01-BT Bluetooth Subwoofer Mono Amp
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
We offer free worldwide shipping, except for certain regions such as Ukraine and Russia, where our services are currently unavailable.
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Customer Support
WhatsApp: +8613716612254
support@fosiaudio.com
Mon-Fri: 3:00 AM - 3:00 PM PST -
FAQ’s
If you have any questions, please refer here: FAQs
Product details
- Upgraded Design: Add Bluetooth to a subwoofer amplifier. M01-BT support Bluetooth and RCA input can drive most home passive speakers, passive subwoofers, and powered subwoofers. (Note: M01-BT is not suitable for active speakers). Easy to build a simple sound system with M01-BT.
- Mini compact Class D Audio Amplifier. M01-BT SUB amp adopts ST Microelectronics TDA7498E high-performance chip, MAX power output up to 300Watts.
- Switch to PBTL(As a full frequency mono amp): You can use the banana plugs or bare wires to connect the passive subwoofer to the M01-BT, use the RCA cable to connect the powered subwoofer to the M01-BT.
- Switch to SUB(As a subwoofer amp): You can use the banana plugs or bare wires to connect the passive subwoofer to the M01-BT, use the RCA cable to connect the powered subwoofer to the M01-BT.
- What you Get: M01-BT amplifier x1, Bluetooth antenna x1, User Manual x1, 24V/4.5A Power Adapter x1, AC Cord x1, 18-month worry-free warranty, and friendly customer service.
Specifications
| Specifications | Details |
|---|---|
| Model | M01-BT |
| MAX Power Output | 300W |
| RMS Power Output | RMS220W@4Ω, RMS 110W@8Ω |
| Terminating Impedance | 2-8Ω |
| Input Mode | Bluetooth + RCA |
| Output Mode | Passive Speaker + Powered Subwoofer |
| Frequency Range | 20Hz - 20kHz (±3 dB) |
| Bass Frequency Range | 20-200Hz |
| THD | ≤0.05% |
| SNR | ≥ 102dB |
| Input Sensitivity | ≤ 0.2mV |
| Chip Set | TDA7498E |
| DC Input Range | 24-32V |
| Power Supply | 24V 4.5A |
What‘s in the box?
| Item | Quantity |
|---|---|
| M01-BT Amplifier | x 1 |
| Bluetooth Antenna | x 1 |
| 32V 5A Power Adapter | x 1 |
| User’s Manual | x 1 |
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FAQs
Please read our FAQs page to find out more.
How to: Choose the right banana plug?
- Closed Screw Type. All Fosi amplifiers use standard-sized speaker terminals (4mm pins).
- Easy to wire up and solidly connect to amplifier and passive speaker.
- If they do not fit, use a little force to tighten the plugs.
- Fosi Audio Banana Plugs (Copper, Silver/Gold Plated): http://bit.ly/40Djq0U, https://bit.ly/3MkPL8t
- Please watch tutorial videos: https://youtu.be/6pYhoqDlvNw / https://youtu.be/RGvBgGAwS9k
How to Diagnose Power Supply Failure?
- The following situations may cause this issue
- Case 1: The LED on the power supply does not light up; Case 2: Amp/Preamp does not turn on; Case 3: When plugged into the Amp, both light on the amp & power supply start blinking; Case 4: Amp/Preamp make noise; Case 5: Sound shuts off by itself
- Possible solution
- Check if the power supply is illuminated when plugged into AC by itself.
Plug power supply into a different socket.
Test the adapter with a meter.
Try a different power supply (within a range of DC input).
Test the included power supply on other electrical equipment.
Please watch the tutorial video by clicking on the link provided. https://youtu.be/yCjygS03zTE
What is a GaN?
- The GaN supply has a power output of 240W.
- Offers overload and over-temperature protection.
- The 48V 5A GaN power supply is also available on Amazon.



