My unit has stopped working. Mini input jack may be bad. How do I return for replacement? purchased 9/2/22

Try a new supply for cable to usb ie another high power charger.

Can this amplify a video signal to allow splitting on multiple viewing screens ?

No. It is for audio only (and in my opinion, doesn't even do that well). You need a device that is specifically for video, like this: https://www.amazon.com/MT-VIKI-Splitter-Composite-Distribution-Amplifier/dp/B0882RHYTW/ This will take a composite video input, amplify it, and provide multiple outputs. It also does the same for the associated audio inputs.

What are the exact dimensions of the power connector? The connector has 2 dimensions, the outer diameter and the inner pin diameter (5.5 mm x?)

I don't know. My Mini Stereo Line Level Amp stopped working the second week I owned it. I recommend buying something else.

Will it give a full 2 volt line out RCA signal

So long as the input level is sufficient to create a 2V output signal, the answer is yes. If the input signal is not of sufficient amplitude it will/can not.

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Douk Audio L1 Mini Stereo Line Level Booster Amplifier Audio Preamp with 20dB Gain and Volume Control

Douk Audio L1 Mini Stereo Line Level Booster Amplifier Audio Preamp with 20dB Gain and Volume Control

Product ID: 243819127

Details

Brand
Douk Audio
Manufacturer
Douk Audio
Maximum Supply Voltage
26
Minimum Supply Voltage
26
Mounting Type
Surface Mount

⚡20dB max gain with ±12.5V output amplitude

🔌3 versatile input/output interfaces

🛠️DIY-friendly pluggable NE5532P op amp socket

897 DH

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Sold byAmazon MoroccoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Elevate Every Note — Boost Your Audio Game with Douk Audio L1!

VERSATILE USE CASES - Ideal for home stereos, mixers, karaoke, live events, and office setups craving that extra punch.
POWERFUL AUDIO BOOST - Amplify your sound by up to 20dB, delivering crystal-clear volume without distortion at optimal levels.
UNIVERSAL CONNECTIVITY - Seamlessly integrates with phones, TVs, computers & more via 3.5mm AUX, RCA, and 5-DIN ports.
COMPACT DURABLE DESIGN - All-metal, mini chassis shields against interference while fitting perfectly into any professional or home setup.
CUSTOMIZABLE SOUND EXPERIENCE - Swap out the NE5532P op amp easily to tailor your audio signature and enjoy DIY audiophile fun.

The Douk Audio L1 Mini Stereo Line Level Booster is a compact, all-metal preamp designed to amplify low-volume audio sources by up to 20dB. Featuring multiple input/output options (3.5mm AUX, RCA, 5-DIN), a wide 5-24V power range, and a user-swappable NE5532P op amp, it delivers clear, warm sound with ultra-low distortion. Perfect for professionals and audiophiles seeking a customizable, durable solution to enhance home, office, or live audio setups.

Specifications

ASIN	B08L4WYSZ4
Best Sellers Rank	#29,456 in Electronics ( See Top 100 in Electronics ) #150 in Audio Component Amplifiers
Brand Name	Douk Audio
Customer Reviews	4.1 4.1 out of 5 stars (342)
Manufacturer	Douk Audio
Maximum Supply Voltage	26 volts_of_direct_current
Minimum Supply Voltage	26 volts_of_direct_current
Model	XZ-L1
Mounting Type	Surface Mount
Number of Channels	2
Number of Items	1
Output Power	12.5 volts
Part Number	XZ-L1
Unit Count	1 Count

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897 DH

Duties & taxes included

In stock

Sold byAmazon MoroccoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Morocco.

Secure transaction

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