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

⚡Max 20dB gain with ±12.5V output amplitude

🔌3.5mm AUX, RCA & 5-DIN inputs/outputs

🎛️Adjustable gain & volume control

698 kr

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Description

🎧 Elevate Every Note — Compact Powerhouse for Audiophiles on the Go!

VERSATILE USAGE - Ideal for home stereos, mixers, karaoke, live events, and recording studios—boost your sound anywhere.
COMPACT DURABLE - All-metal mini design shields against interference while fitting perfectly into any setup.
CUSTOMIZABLE SOUND - Swap NE5532P op amps easily to tailor your audio experience and unleash your inner audiophile.
POWERFUL AMPLIFICATION - Delivers up to 20dB gain with a robust ±12.5V output, ensuring crystal-clear sound elevation.
UNIVERSAL COMPATIBILITY - Seamlessly connects with iPods, phones, TVs, and more for effortless audio boosting.

The Douk Audio L1 Mini Stereo Line Level Booster Amplifier is a compact, all-metal preamp delivering up to 20dB gain with ±12.5V output amplitude. Featuring multiple input/output options (3.5mm AUX, RCA, 5-DIN), adjustable gain and volume controls, and a DIY-friendly pluggable NE5532P op amp design, it’s engineered for versatile, high-fidelity sound enhancement across a wide range of audio devices.

Specifications

ASIN	B08L4WYSZ4
Best Sellers Rank	#22,962 in Electronics ( See Top 100 in Electronics ) #115 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
Output Power	12.5 volts
Part Number	XZ-L1
Unit Count	1 Count

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698 kr

Duties & taxes included

In stock

Sold byAmazon DenmarkDelivered 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 Denmark.

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