
Power Supply Voltage Range: 18V-48V
Fosi Audio TB10D Mini Power Amplifier
Install this compact amp and hooked it up to a pair of your bookshelf speakers.

2.0 Channel Stereo Amplifier
For those seeking a 2 CH amplifier that supports solely RCA inputs, the TB10D amplifier stands ready. It adapts the TPA3255 chip to deliver a clean, crisp sound that invigorates your bookshelf speakers with robust performance.
- Input: RCA (Do NOT support Bluetooth); Output: Passive Speakers
- SNR= 90dB; THD= 0.3%;Power Supply: 32V 5A
- Product Dimensions: 4.13 x 5.59 x 1.38 inches
Output Power: 300W x2 (Note: You need a more powerful power supply to get the MAX 300W x2 power output, such as 48V/10A)
Does it support Bluetooth and WiFi?
No, it doesn’t. It only supports RCA inputs.
How does the power output of the TB10D amplifier change?
The power output of the TB10D varies with the power supply specifications and the impedance of the speakers, please refer to the power comparison table for details.
Can it drive subwoofer speakers?
No, it can’t. It’s a 2-channel amplifier, that only can drive a pair of passive speakers.
How can I try when I have some problems?
-Make sure all the cables are fully connected.
-Adjust the treble and bass control of the power amplifier to achieve the right tone.
-Please try to change the sound source and cables.
How can I set the bass and treble to flat and neutral?
Set the knobs to the 12 o'clock position.
Friendly Solutions Guide for TB10D- 2 Channel Amplifier
I. Function & Performance Clarifications
1. Power Output & Supply: The TB10D's maximum power output is determined by the power supply. With the included 32V 5A power supply, it delivers 100W at 4O and 130W at 8O. For higher power, a 48V 10A power supply is recommended, which can provide 280W at 4O and 300W at 8O per channel. The maximum chip power of 600W (300W per channel) requires a 48V 10A power supply. 2. Connections & Compatibility: This amplifier supports RCA input only and is not compatible with Bluetooth. It is designed to connect to a pair of passive speakers or bass shakers, not subwoofers or four speakers. The terminating impedance supports 2 - 8O. 3. Accessories & Dimensions: The package includes only a 32V 5A power adapter. No other cables are included. The product dimensions are 5.59x4.13x1.38 inches.
II. Noise - Related Solutions
1. Cable Quality: Use 100% shielded RCA cables to significantly reduce hissing sounds. Ensure all cables are properly connected and undamaged. 2. Power Adapter: Use the original power adapter provided with the product to avoid white noise. Non - original power adapters may introduce additional noise. 3. Audio Source Quality: Use high - quality audio files (FLAC, WAV) instead of compressed formats (MP3). Place speakers at least 30cm away from walls or corners to improve sound quality. 4. Environment & Setup: Avoid using the device in environments with strong magnetic fields. Ensure the surroundings of the device are clean and tidy. Keep the device away from other electronic devices that may cause interference. 5. Volume & Mute Settings: Ensure that the volume levels of both the amplifier and the television are properly adjusted and not set to mute. Set the volume to 50% or below to reduce noise. 6. Speaker Compatibility: Ensure your speakers have an impedance between 2 - 8O. Avoid using the amplifier with subwoofers or as a car amplifier.
III. Troubleshooting Guide
1. Power Output: To achieve the specified power output, ensure you are using the correct power supply. For higher power, consider purchasing a 48V 10A power supply.
2. Audio Sound: Use high - quality audio files and optimize speaker placement. Use 100% shielded RCA cables and the original power adapter. Check for incorrect wiring, interference, and ensure audio cables are in good condition. Avoid using a power socket for multiple devices simultaneously.
3. Compatibility: Ensure your speakers have an impedance between 2 - 8O. Avoid using the amplifier with subwoofers or as a car amplifier.
4. Function: Ensure all cables are correctly connected, secure, and in good condition. Ensure that the volume levels of both the amplifier and the television are properly adjusted and not set to mute. Avoid using the device in environments with strong magnetic fields and ensure that the surroundings of the device are clean and tidy.
PS: Could not drive subwoofer speakers.
Compare and Contrast: 2.0 Channel Amplifiers for Your Audio Needs


Fosi Audio TB10D Mini Power Amplifier
Install this compact amp and hooked it up to a pair of your bookshelf speakers.

2.0 Channel Stereo Amplifier
For those seeking a 2 CH amplifier that supports solely RCA inputs, the TB10D amplifier stands ready. It adapts the TPA3255 chip to deliver a clean, crisp sound that invigorates your bookshelf speakers with robust performance.
- Input: RCA (Do NOT support Bluetooth); Output: Passive Speakers
- SNR= 90dB; THD= 0.3%;Power Supply: 32V 5A
- Product Dimensions: 4.13 x 5.59 x 1.38 inches
Output Power: 300W x2 (Note: You need a more powerful power supply to get the MAX 300W x2 power output, such as 48V/10A)
Customize Your Sound Profile
Adjust bass and treble to your liking for a tailored listening adventure
High-Efficiency
Delivering high power efficiency and minimal idle losses, ensuring a pristine audio experience
Small Footprint, Clean Sound Quality
Enjoy powerful audio in a compact design
Enhance Your Vinyl Sound
Brings Your Turntable to Life
Pair the TB10D with Fosi Audio's BOX X2 or BOX X5 phono preamps for a vibrant vinyl experience
Harmony for Your Space
Does it support Bluetooth and WiFi?
No, it doesn’t. It only supports RCA inputs.
How does the power output of the TB10D amplifier change?
The power output of the TB10D varies with the power supply specifications and the impedance of the speakers, please refer to the power comparison table for details.
Can it drive subwoofer speakers?
No, it can’t. It’s a 2-channel amplifier, that only can drive a pair of passive speakers.
How can I try when I have some problems?
-Make sure all the cables are fully connected.
-Adjust the treble and bass control of the power amplifier to achieve the right tone.
-Please try to change the sound source and cables.
How can I set the bass and treble to flat and neutral?
Set the knobs to the 12 o'clock position.
Friendly Solutions Guide for TB10D- 2 Channel Amplifier
I. Function & Performance Clarifications
1. Power Output & Supply: The TB10D's maximum power output is determined by the power supply. With the included 32V 5A power supply, it delivers 100W at 4O and 130W at 8O. For higher power, a 48V 10A power supply is recommended, which can provide 280W at 4O and 300W at 8O per channel. The maximum chip power of 600W (300W per channel) requires a 48V 10A power supply. 2. Connections & Compatibility: This amplifier supports RCA input only and is not compatible with Bluetooth. It is designed to connect to a pair of passive speakers or bass shakers, not subwoofers or four speakers. The terminating impedance supports 2 - 8O. 3. Accessories & Dimensions: The package includes only a 32V 5A power adapter. No other cables are included. The product dimensions are 5.59x4.13x1.38 inches.
II. Noise - Related Solutions
1. Cable Quality: Use 100% shielded RCA cables to significantly reduce hissing sounds. Ensure all cables are properly connected and undamaged. 2. Power Adapter: Use the original power adapter provided with the product to avoid white noise. Non - original power adapters may introduce additional noise. 3. Audio Source Quality: Use high - quality audio files (FLAC, WAV) instead of compressed formats (MP3). Place speakers at least 30cm away from walls or corners to improve sound quality. 4. Environment & Setup: Avoid using the device in environments with strong magnetic fields. Ensure the surroundings of the device are clean and tidy. Keep the device away from other electronic devices that may cause interference. 5. Volume & Mute Settings: Ensure that the volume levels of both the amplifier and the television are properly adjusted and not set to mute. Set the volume to 50% or below to reduce noise. 6. Speaker Compatibility: Ensure your speakers have an impedance between 2 - 8O. Avoid using the amplifier with subwoofers or as a car amplifier.
III. Troubleshooting Guide
1. Power Output: To achieve the specified power output, ensure you are using the correct power supply. For higher power, consider purchasing a 48V 10A power supply.
2. Audio Sound: Use high - quality audio files and optimize speaker placement. Use 100% shielded RCA cables and the original power adapter. Check for incorrect wiring, interference, and ensure audio cables are in good condition. Avoid using a power socket for multiple devices simultaneously.
3. Compatibility: Ensure your speakers have an impedance between 2 - 8O. Avoid using the amplifier with subwoofers or as a car amplifier.
4. Function: Ensure all cables are correctly connected, secure, and in good condition. Ensure that the volume levels of both the amplifier and the television are properly adjusted and not set to mute. Avoid using the device in environments with strong magnetic fields and ensure that the surroundings of the device are clean and tidy.
PS: Could not drive subwoofer speakers.
Compare and Contrast: 2.0 Channel Amplifiers for Your Audio Needs
![]() TB10D | ![]() TB10A | ![]() V3 | ![]() ZA3 | ![]() TDA7498E | ![]() V1.0B | ![]() V1.0G |
|---|---|---|---|---|---|---|
| Customer Reviews | ||||||
| — | — | — | — | — | — | — |
| Price | ||||||
| — | — | — | — | — | — | — |
| Type | ||||||
| 2.0 CH Amp | 2.0 CH Amp | 2.0 CH Amp | 2.0 CH Mono Amp | 2.0 CH Amp | 2.0 CH Amp | 2.0 CH Amp |
| MAX Power Output | ||||||
| 300W x 2 | 100W x 2 | 300W x 2 | 190W x2/ 300W x1 | 160W x 2 | 50W x 2 | 50W x 2 |
| Input | ||||||
| RCA | RCA | RCA | RCA+XLR+¼”TRS | RCA | RCA | RCA |
| Output | ||||||
| Passive Speakers | Passive Speakers | Passive Speakers+Pre-Out | Passive SPK +Sub-out | Passive Speakers | Passive Speakers | Passive Speakers |
| Treble & Bass Control | ||||||
| ? | ? | ? | ? | ? | ? | ? |
| THD | ||||||
| = 0.3% | = 0.04% | <0.003% | <0.006% | = 0.04% | = 0.04% | = 0.04% |
| SNR | ||||||
| = 90dB | = 98dB | =110dB | =106dB | = 98dB | = 98dB | = 98dB |
| Terminating Impedance | ||||||
| 2-8 Ohm | 2-8 Ohm | 2-8 Ohm | 2-8 Ohm | 2-8 Ohm | 2-8 Ohm | 2-8 Ohm |
| Power Adapter | ||||||
| 32V/5A | 24V/4.5A | 32V/5A | 48V/5A | 24V/4.5A | 19V/4.74A | 19V/4.74A |
| Work Voltage | ||||||
| AC 110V - 240V | AC 110V - 240V | AC 110V - 240V | AC 110V - 240V | AC 110V - 240V | AC 110V - 240V | AC 110V - 240V |







































































