User Manual & Driver of Douk Audio VU3PRO

Warm tips

• Two groups of Speaker 1 and Speaker 2 can output at the same time.
• The VU meters won't work normally if the speakers output of VU3Pro isn't connected to the speakers. If you only want the VU meters function, please choose MIC input.
• Don't connect VU3PRO to amplifiers whose actual output power is greater than 350W, otherwise the VU meters may be damaged.
• For safer and faster delivery, the remote control may not include batteries (AAA*2), please prepare it yourself.

• VU3 Pro Amplifier/Speaker Selector: The fully upgraded version of VU3, with great improvements in size, functions and performance. 2-IN-2-OUT (Two groups of speaker jacks support output at the same time), flexible to switch and make a comparison between 2 amplifiers and 2 pairs of speakers, no need to plug in and out cables repeatedly to avoid wearing the contact point of the sockets.
• Max. 350W Power Transmission and Super Compatibility: With the growing popularity of high-power amplifiers, the power requirements for switchers have also increased. With a maximum pass-through of 350W, the VU3Pro supports various types of high-power digital and tube amplifiers (BTL, Class A, Class B, Class AB, Class D, etc.), including 300W TPA3255 amps and floorstanding speakers.
• Custom-made Large and High-playability VU Meters: The VU3Pro features dual large VU meters and a bigger chassis, perfectly compatible with more audio devices in size. It offers 35 backlight colors and 5 brightness levels to suit various scenarios. Additionally, it supports 20 levels of gain and 30 levels of sensitivity adjustments, ensuring perfect alignment with different audio signals and allowing you to enjoy the vibrant audio-visual feast.
• Wired/Wireless Inputs and Easy to Use: VU3Pro adds mic pickup, just put it near your audio system, clear indicators in two warm and vintage VU meters will strikingly show every beat of music and dynamically activate your audio feast. With a button and remote control, effortlessly switch most settings at your fingertips and simplify the process of A/B comparison, and all settings will be saved after shutdown.
• Premium Components for the Purest Sound Quality: VU3Pro integrates AC 250V 5A large current relay, isolated and high precision HL current sensor, built-in high-power load resistors to protect class A tube amplifier from damage when no load, solid CNC aluminium alloy panel and metal chassis, large pure copper speaker jacks etc., ensures virtually no impact or loss in sound quality and allows you to enjoy the purest high-fidelity sound.

• Brand: Douk Audio
• Model: VU3Pro
• Diameter of VU meter: 85*45mm
• Audio input/output: 2 groups of banana female
• Working mode: 2-IN-2-OUT
• Max. through power of each channel supported (in acutal):
  350W@4Ω
  200W@2Ω
• Amplifier type supported: all kinds of types (BTL/Class A/Class B/Class D digital amp/tube amp)
• Amplifier no-load protection: support
• Frequency response: 30Hz-20kHz
• Backlight color: 35 kinds of color selection or automatic change
• Backlight brightness: 5 levels (Off-30%-50%-80%-100%)
• GAIN: 20 levels
• Sensitivity: 30 levels
• MIC pick-up: support
• Remote control: support
• Settings saved after shutdown: support
• Working voltage: DC 5V ≥2A
• Power interface: Type-C
• Dimensions (W*D*H): 268*155*75mm / 10.55*6.10*2.95in
• Package dimensions (W*D*H): 380*220*95mm / 14.96*8.66*3.74in
• Net weight: 1.61kg / 3.55lb
• Package weight: 2.00kg / 4.41lb