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Designed with Audiophiles in Mind Fosi Audio V3 Mini Stereo Power Amplifier
Integrated quality components and groundbreaking heat dissipation design enable high and stable performance catering to audiophiles’ demand.
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 V3 Mini Stereo Power Amplifier
Born for HiFi Enthusiasts
Using a minimalist design language, focusing more on enhancing the sound quality and performance of the product, making it the best-sounding power amplifier of Fosi Audio to date.
Max Power Output: 300Wx2@4ΩSINAD: 88dB | SNR: ≥110dBTHD: ≤0.003% | Noise Floor: 140uVFrequency Response: 20Hz-20kHz
TI TPA3255 Integrated
Enabling superior audio quality & ultra-low distortion across the audio band with Class-D efficiency
Swappable Op-Amps
Compatible with 8-pin dual op-amps. Roll them to get your preferred sound signature
Audiophile-Grade Capacitors
Built-in quality Japanese NCC, ELNA, and German WIMA capacitors for outstanding performance
Japanese SUMIDA Inductors
Professional audio inductors which have lower impedance and enables support for larger currents
Logarithmic Potentiometer
Manage the volume of sound in a much finer way suitable for the human ear
1 Amp Chip
2 Op-Amps
3 Capacitors
4 Inductors
5 Taper A Pot
Groundbreaking Heat Dissipation
Vents on the top and bottom, and whole-body heatsink design enhance air circulation and cooling

1 Heat Dissipation
2 Vents On Top
3 Vents On Bottom
4 Nano-Coated Heatsink

1 Bookshelf Scene
2 Home Theater
3 Desktop Scene
Without bass and treble control
the V3 amplifier delivers a cleaner sound, preserving the original audio characteristics.
The “Pre-out” level is NOT controlled by the volume control.

1 Front Panel
2 About the “Pre-out”
3 Power Rating
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Customer Reviews
4.5 out of 5 stars 1,268
4.1 out of 5 stars 333
4.5 out of 5 stars 1,338
4.5 out of 5 stars 1,605
4.4 out of 5 stars 2,982
4.4 out of 5 stars 1,925
4.4 out of 5 stars 1,170
Price
$89.99$89.99
$139.99$139.99
$149.99$149.99
$79.99$79.99
$99.99$99.99
$109.99$109.99
$69.99$69.99
Type
2.0 CH Amp
Monoblock Amp
2.0 CH Balanced Amp
2.0 CH Amp
Bluetooth 2.0 CH Amp
Bluetooth 2.1 CH Amp
Mono Amp
MAX Power Output
300W x 2
240W x 1
180W x 2/235W x 1
300W x 2
300W x 2
165W×2+350W
220W
Input
RCA
RCA+XLR (¼”TRS)
RCA+XLR (¼”TRS)
RCA
Bluetooth + RCA
Bluetooth + RCA
RCA
Output
Passive SPK +Pre-out
Passive Speaker
Passive SPK +Sub-out
Passive Speakers
Passive Speakers+Pre-Out
Passive/Active SPK/Subwoofer
Active/Passive Subwoofer
Treble+Bass Control
✘
✘
✘
✔
✔
✔
✘
THD
<0.003%
<0.006%
<0.006%
≤ 0.3%
≤ 0.005%
≤ 0.3%
≤0.04%
SNR
≥110dB
≥123dB
≥106dB
≥ 90dB
≥108dB
≥ 108dB
≥ 98dB
Compact Yet Powerful: The V3 mini power amplifier combines a minimalist design with exceptional performance. With a power output of up to 600W, it can effortlessly drive 2-8Ω speakers, delivering impressive sound quality. Its compact size makes it suitable for various applications, from bookshelves and desktop setups to home theaters
Audiophile-Grade Components: It features the TPA3255 high-end digital class D amp chip and utilizes premium Japanese NCC, ELNA, and German WIMA capacitors, and Japanese Sumida inductors for exceptional audio quality. With a SINAD rating of up to 88dB, an SNR of up to 110dB, and a low noise floor of only 140uV, it delivers exceptional clarity and low distortion
Innovative Cooling: The V3 stands out with its groundbreaking heat dissipation design. Equipped with vents on the casing’s top and bottom, and a whole-body heatsink design, it efficiently dissipates heat, preventing damage to components and ensuring optimal performance
Scalable and Fun: Tailor your sound experience by swapping the stock NE5532 op-amps. V3 is compatible with a variety of 8-pin dual op-amps like Sparkos SS3602, MUSES02, OPA2604, OPA2134PA, OP249, AD827, RM4559, LM4562, LME49720HA, etc
Enhanced Pre-out Functionality: The V3 features an optimized “Pre-out” design. The level is now controlled by the volume control, allowing for adjustable sound levels when connected to the “Pre-out.” This enhancement offers greater flexibility and convenience for users who prefer to fine-tune their audio experience
$109.99