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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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Bluetooth 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: 345452864

Details

Item dimensions L x W x H
11 x 7 x 2.1
Manufacturer
DAMGOO
Maximum supply voltage
24 Volts
Minimum supply voltage
9 Volts
Voltage
24 Volts

📶Bluetooth 5.0 with 49ft range

🔊100W+100W stereo power

🎚️Treble & bass control knobs

Description

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

POWERFUL STEREO OUTPUT - Dual TPA3116D2 chips deliver crisp 100W+100W sound with ultra-low distortion (THD ≤0.1%) for immersive audio.
ROBUST VOLTAGE FLEXIBILITY - Operates smoothly on a wide DC range (9-24V), ideal for diverse DIY wireless speaker projects.
BUILT IN SAFETY PROTECTIONS - Overheat, over-voltage, and under-voltage safeguards keep your amplifier and speakers safe during extended use.
CUSTOMIZABLE SOUND EXPERIENCE - Adjust treble and bass effortlessly to create your perfect movie-theater-like sound ambiance.
SEAMLESS WIRELESS WIRED CONNECTIVITY - Bluetooth 5.0 ensures stable, password-free streaming up to 49 feet, plus AUX input for versatile device compatibility.

This compact Bluetooth amplifier board packs a punch with dual 100W stereo output powered by TPA3116D2 chips, offering ultra-low distortion and customizable treble/bass controls. Featuring Bluetooth 5.0 for stable wireless streaming up to 49 feet and AUX input for wired options, it supports a wide DC voltage range (9-24V) and includes comprehensive safety protections, making it the perfect upgrade for DIY wireless speaker enthusiasts seeking professional-grade sound.

Specifications

ASIN	B08R3Y5WXH
Brand Name	DAMGOO
Customer Reviews	4.5 4.5 out of 5 stars (661)
Global Trade Identification Number	00194852390270
Item Dimensions	11 x 7 x 2.1 centimeters
Item Weight	111 Grams
Manufacturer	DAMGOO
Maximum Output Power	200 watts
Maximum Supply Voltage	24 Volts
Minimum Supply Voltage	9 Volts
Model	2.0 AMP
Mounting Type	Surface Mount
Number of Channels	2
Output Power	200 Watts
Part Number	ZK-1002T
UPC	194852390270
Unit Count	1 Count
Voltage	24 Volts

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