I want to connect dual 120watt speakers. is 24v 5A enough? is 24v 10A too much?

This amp is rated at 100W+100W=200W. The datasheet says 90% efficiency. That means you need 9.25A at 24V (200/.09/24V) to generate the power needed for 200W. A 24V 5A supply can supply 120W, times the 0.9 efficiency, that supply will only give you 108W or 54 W per channel.

Can I use a 7.5a fuse or will it fry the amp? (I have a classic car with a 7.5a glass fuse with wiring for a radio that I'd like to use.)

The unit takes 12-24 volts DC. The amperage does not matter, you can use a 200a glass fuse if you like :)

does this come with a power cord / pig tail, so I can wire it into a dc power supply? If not what size plug do I need?

You will need to provide your own power source and it fits a 5.5mm plug. Above 12V is recommended, and 24V will give you full power.

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100W+100W Amplifier Board with Treble and Bass Control, DC 9-24V, BT and AUX Inputs, 2.0 Channel Stereo AMP Board for DIY Wireless Speakers, Password Free

Product ID: 284879523

Details

Item dimensions L x W x H
4.33 x 2.76 x
Manufacturer
DAMGOO
Maximum Supply Voltage
24 Volts (DC)
Minimum Supply Voltage
12 Volts (DC)
Voltage
24 Volts

📶Bluetooth 5.0 with 49ft range

🔊200W stereo power output

🎚️Adjustable treble & bass control

R694

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Elevate your DIY sound game with power, precision, and wireless freedom!

POWER YOUR SOUNDSTAGE - Dual TPA3116D2 chips deliver crisp 100W+100W stereo output with ultra-low distortion (THD ≤0.1%) for immersive audio clarity.
TAILOR YOUR AUDIO VIBE - Integrated treble and bass knobs let you customize your sound profile—feel like you’re front row at a cinema every time.
BUILT TO LAST PROTECT - Advanced safety features guard against overheating, over-voltage, and under-voltage, ensuring reliable performance 24/7.
SEAMLESS WIRELESS FREEDOM - Bluetooth 5.0 ensures stable, password-free streaming up to 49 feet, or plug in via AUX for versatile connectivity.
DIY AUDIO UPGRADE ESSENTIAL - Compact, lightweight design (4.33x2.76x0.83 inches, 111g) perfect for building or upgrading your own wireless speaker system.

The DAMGOO 100W+100W Amplifier Board features dual TPA3116D2 chips delivering 200W stereo output with less than 0.1% distortion. It supports DC 12-24V input, Bluetooth 5.0 wireless streaming up to 49 feet, and AUX input for flexible connectivity. With adjustable treble and bass controls, advanced safety protections, and a compact form factor, it’s an ideal choice for DIY wireless speaker projects seeking high-fidelity sound and reliable performance.

Specifications

ASIN	B08R3Y5WXH
Best Sellers Rank	#9,469 in Electronics ( See Top 100 in Electronics ) #51 in Audio Component Amplifiers
Brand Name	DAMGOO
Customer Reviews	4.6 4.6 out of 5 stars (785)
Global Trade Identification Number	00194852390270
Included Components	amplifier board
Item Dimensions	4.33 x 2.76 x 0.83 inches
Item Weight	111 Grams
Manufacturer	DAMGOO
Maximum Output Power	200 watts
Maximum Supply Voltage	24 Volts (DC)
Minimum Supply Voltage	12 Volts (DC)
Model	2.0 AMP
Mounting Type	Surface Mount
Number of Channels	2
Output Power	200 Watts
Package Type Name	box
Part Number	ZK-1002T
Specification Met	CE, RoHS
UPC	194852390270
Voltage	24 Volts

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