Hello. i just unpacked my unit, and when i plug it in, the led display does not come on, how do i get it to activate? is my unit broken?

I believe your unit may be broken.

Speakers a and c work but b and d do not. not even the same channel, any ideas ??

Kenneth's answer isn't correct. The subwoofer connects through the RCA port on the lower right. I'm not sure why only half of your speakers are working.

Is this unit a blue-tooth receiver or a blue-tooth transmitter?

think of it as an audio receiver through a Bluetooth or aux connection - your phone would connect to it over Bluetooth (or a stereo 3.5mm cable if your phone has a headphone jack) and send Spotify or other music to this device, which would send the audio out through speaker wires.

What is the max of watts

I'm not sure of the max watts, but it gets really loud even at 15. I have to constantly yell down to my son to "Turn It Down!"

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Facmogu

Product ID: 334102681

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Details

Voltage
12 Volts
Manufacturer
Facmogu
Maximum Supply Voltage
12 Volts (DC)
Minimum Supply Voltage
12 Volts (DC)
Mounting Type
Surface Mount

📶Bluetooth 5.0

🔊800W RMS Power

🎚️Dual Volume Control

Description

🎶 Elevate Your Audio Game!

POWER UP YOUR SOUND - Unleash a staggering 800W RMS for an audio experience that will make your neighbors jealous!
USER FRIENDLY DESIGN - Navigate settings easily with a bright LED display and remote control—music management made simple!
CRYSTAL CLEAR CLARITY - Enjoy distortion-free sound with harmonic distortion less than 0.04%—your playlist has never sounded this good.
SEAMLESS CONNECTIVITY - Connect effortlessly via Bluetooth 5.0, AUX, USB, or SD/TF card—music is just a click away.
TAILORED AUDIO EXPERIENCE - Customize your sound with independent volume controls for two speaker zones—perfect for any gathering.

The Facmogu299 4.1CH Bluetooth Power Amplifier delivers a powerful 800W RMS output, designed specifically for active subwoofers and high-capacity speakers. With Bluetooth 5.0 connectivity and multiple input options, it ensures seamless music streaming. The dual volume controls allow for personalized sound zones, while the user-friendly design features a bright LED display and remote control for effortless operation.

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