【Voltage Compatibility】
When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.
【Plug Type】
Our products use Japanese plug types (A or B type).
Please use a conversion adapter if necessary.
【Important Note on Transformers and Adapters】
A transformer adjusts voltage to match your device’s requirements.
A conversion adapter only changes the plug shape and does not adjust voltage.
Using only a conversion adapter without a transformer may result in damage to the product.
【Liability】
We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.
Boasting significant improvements in both functionality and size, the Douk Audio & Nobsound VU3PRO Amplifier/Speaker Selector is the ultimate choice for audiophiles. The 2-IN-2-OUT design supports MAX 350W power through, making it compatible with a wide range of digital and tube amplifiers. This switch box provides flexible switching functionality that allows two groups of speaker jacks to output simultaneously, allowing you to compare and switch between them without having to repeatedly insert and remove cables.
VU3PRO features a custom-made large VU meter, 85*45mm size perfectly matches your audio device. With 35 backlight colors and 5 levels of brightness adjustment, you can adjust it to suit different scenarios. In addition, 20 levels of gain and 30 levels of sensitivity adjustment are supported, allowing you to work with different audio signals and enjoy a living audiovisual feast.
VU3PRO added wired/wireless input and dual controls. Place the microphone pickup close to your audio system, and the warm two VU meters' clear indicators clearly display the beats of your music, dynamically enlivening your audio feast. Easily toggle most settings with buttons and remote control, simplify the A/B comparison process, and save all settings even after shutdown.
VU3PRO integrates premium components for amazing sound quality. Featuring a large AC 250V 5A relay, a separate high-precision HL current sensor, built-in high power load resistance, a solid CNC full aluminum alloy frame to protect the class A tube amplifier, and a large pure copper speaker jack, you can enjoy the cleanest high-fidelity sound with little impact on sound quality.
For a comfortable audio experience, VU3PRO offers user-friendly design and features. Not only is it easy to switch using the remote control, but your settings are saved even after shutdown, so you can enjoy them right away the next time you use them. The package also includes VU3PRO, power adapter, remote control (no batteries), and USB cable (Type-C) for easy setup.
Tags: amplifier vacuum tube amplifier vacuum tube amplifier kit phono equalizer amplifier integrated amplifier vacuum tube 5.1ch amplifier amplifier small vacuum tube preamp vacuum tube radio
