Will this work with Fosi Audio BL20A ? Will it improve sound quality?

Max voltage for the BL20A is 24V. This is the limit for the two TPA3116D2 chips, so I would not recommend a 32V power supply. Fosi Audio sells a 24V supply that might "improve" sound with respect to the amount headroom (large swings in volume) you can get without distortion but I doubt you could tell the difference at reasonable volumes.

Bt30dpro is only rated to 36v5a does this supply really work for it? is there a 36/48v 10a version?

I bought this power supply for the for the Fosi BT10D it will take up to a 48 volt power supply. My two other Fosi amps will only use a 32 volt power supply. So you must be careful to use the correct unit. Sadly I am not familiar with the BT30Dpro. If you go to the Fosi website they might have additional information. I am sorry I could not be more help.

did it improve bt20a pro quality? if yes which speaker type and watt do you use that make a difference?

48 V power supply improved sound with more clarity and wider soundstage. Speaker type is best at 8ohms.

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Fosi Audio 48V 5A Power Adapter Supply for Home Audio Bluetooth Stereo Receiver Amplifier Mini Hi-Fi Class D Integrated Amp

Fosi Audio 48V 5A Power Adapter Supply for Home Audio Bluetooth Stereo Receiver Amplifier Mini Hi-Fi Class D Integrated Amp

Product ID: 530911742

Details

Brand
Fosi Audio
Color
Black
Connector Type
Barrel
Item Weight
0.79 Kilograms
Material
Plastic

⚡48V stable output

🔋5A high current delivery

🛡️Built-in safety protections

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$U6445

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Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔌 Power your passion, amplify your lifestyle.

COMPACT POWERHOUSE - Sleek, lightweight design fits seamlessly into any home or office audio environment without clutter.
SAFETY FIRST ALWAYS - Integrated overcurrent and overvoltage protection safeguards your valuable audio gear.
AMP UP WITHOUT LIMITS - Delivers a robust 5A current, perfect for high-power home audio setups and professional-grade amps.
UNIVERSAL COMPATIBILITY - Works flawlessly with popular Fosi Audio amps like BT20A Pro, TB10D, V3, and ZA3 for effortless integration.
POWER YOUR SOUND WITH PRECISION - Stable 48V output ensures your amplifier performs at its peak without interruption.

The Fosi Audio 48V 5A Power Adapter is a compact, high-quality power supply designed specifically for Fosi Audio amplifiers. It delivers a stable 48V output with up to 5A current, ensuring reliable performance for high-power audio applications. Built with durable materials and equipped with essential safety features like overcurrent and overvoltage protection, this adapter guarantees safe and consistent operation. Its universal compatibility and sleek design make it an essential upgrade for audiophiles seeking flawless sound amplification in home or office settings.

Specifications

ASIN	B0C2BQ4P8J
Amperage	5 Amps
Best Sellers Rank	#17,064 in Electronics ( See Top 100 in Electronics ) #88 in Audio Component Amplifiers
Brand	Fosi Audio
Built-In Media	1 x AC Adapter
Color	Black
Connector Type Used on Cable	Barrel Connector
Customer Reviews	4.5 4.5 out of 5 stars (440)
Enclosure Material	Plastic
Form Factor	Compact
Input Voltage	48 Volts
Item Dimensions	7.6 x 3.54 x 1.5 inches
Item Weight	0.79 Kilograms
Manufacturer	Fosi Audio
Maximum Power	240 Watts
Mfr Part Number	48V電源
Model Number	48V
Output Current	5 Amps
Output Voltage	48 Volts
Output Wattage	240 Watts
Specification Met	CE
Unit Count	1.0 Ounce
Warranty Description	24 Month Manufacturer

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