Even if you put a 48v 11a power supply on it you would still be short of 600w, does this make any sense? is it really max 300w but miss advertised?

That number is misleading, it will never gets to 50watts

Are each channel mono block? So I can send a differential signal to the rca inputs. Thanks!

https://www.amazon.com/SPRODIO-Converter-Adapter-summing-SC21/dp/B0BRZCGY29/ref=sr_1_1?keywords=stereo+to+mono+converter&qid=1684854327&sr=8-1

Total new to this. i have a pair of sony sscs5 bookshelf speakers. i don't see a way to add a subwoofer. am i correct?

You either need a 3 channel output device (most basic devices without a sub out are just 2 channels) that can run straight to the sub, or a subwoofer that can accept RCA, and split the RCA signal that would feed this amp before it goes to the amp with two RCA splitters or a stereo RCA splitter cable.

Does the V3 come with a power supply? If so, which one?

It comes with a 5A, 32VDC power supply. It can put out 160 Watts of power (5A x 32V), not 32 Watts as another answer incorrectly states.

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Fosi Audio V3 Stereo Power Amplifier Home Audio 300 Watts x2 TPA3255 Class D Mini Speaker Amp 2 Channel Audio Component Amplifier for Passive Bookshelf Tower Speakers for Desktop Home Theater

Product ID: 579777902

⚡600W peak power output

❄️Advanced whole-body heatsink cooling

🎚️Swappable 8-pin op-amps

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Description

🎧 Elevate your sound game with power, precision, and style — don’t just listen, experience it!

COMPACT POWERHOUSE - Delivers a robust 300Wx2 output in a sleek, minimalist chassis perfect for desktop or home theater setups.
PEACE OF MIND WARRANTY - Backed by a 24-month warranty, combining reliability with high-fidelity sound for worry-free listening.
INNOVATIVE COOLING SYSTEM - Groundbreaking top and bottom vents plus a full-body heatsink ensure stable performance without overheating.
AUDIOPHILE GRADE PRECISION - Built with premium Japanese NCC, ELNA, German WIMA capacitors, and Sumida inductors for crystal-clear sound with ultra-low distortion.
CUSTOMIZABLE SOUND SIGNATURE - Swap out the stock NE5532 op-amps with your choice of high-end 8-pin dual op-amps to tailor your audio experience.

The Fosi Audio V3 Stereo Power Amplifier is a compact yet powerful Class D amplifier delivering 300 watts per channel at 4Ω. Engineered with premium audiophile components and a cutting-edge cooling system, it offers exceptional clarity, ultra-low distortion, and customizable sound via swappable op-amps. Ideal for desktop, bookshelf, or home theater setups, it ensures reliable, high-fidelity audio backed by a 24-month warranty.

Specifications

ASIN	B0C36S8DCT
Best Sellers Rank	#21,005 in Electronics ( See Top 100 in Electronics ) #48 in Home Audio Amplifiers
Brand	Fosi Audio
Customer Reviews	4.4 4.4 out of 5 stars (1,179)
Manufacturer	Fosi Audio
Mfr Part Number	V3
Model Number	V3
Unit Count	1.0 Count

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