DOUK AUDIO VU102 - User Manual

Amplifier & Speaker Selector / VU Meter
User Manual
Model: VU102
Douk Audio & One Little Bear
1. USB power only supports DC 5V single voltage and a current of at least 1A; when the current is not enough,
the backlight of VU meter will blink if you switch the channel, and it’s not recommended to use a fast charger or dual voltage power.
2. If the A/B ports are not selected, it will automatically switch to build-in load and connect to the L/R channel of amplifier.
3. When VU102 is powered off, A/B will disconnect from the I/O at the same time and enter the mute mode. A/B ports will switch to build-in load.
4. There will be relatively loud sound when switching A / B channel, this is normal.
5. For faster and safer delivery, the remote control without battery（2*AAA）, also without DC5V power adatper, please prepare them by yourself.
Warm tips
Back Panel
VU102 is a VU meter and amplifier/speaker selector, convenient to compare the sound quality of 2 pairs of different speakers or 2PCS power amplifiers
and enjoy the visual experience with the VU meter. Each channel can pass through power up to 200W, fully isolated design for all channels, and a build-in
protection load. Equipped with remote control, all setting support power loss memory, convenient to quickly set the best working state. Suitable for all
types of amplifiers such as digital amplifiers (BTL, Class A, Class B, Class D ) and tube amplifiers. Proper size with simple appearance, fashionable and
durable, convenient for use in most situations.
Introduction
Front Panel

Summary

Warm Tips

USB Power Requirements

USB power needs DC 5V, at least 1A; avoid fast/dual voltage chargers for stable backlight.

Automatic Build-in Load

If A/B ports are unselected, it auto-switches to build-in load and connects to L/R channels.

Power Off State

When powered off, A/B disconnect from I/O, enter mute mode, and switch to build-in load.

Channel Switching Sound

A relatively loud sound during A/B channel switching is normal operation.

Included Accessories

Remote control battery (AAA) and DC5V power adapter are not included; prepare them separately.

Introduction

Front Panel

Back Panel

Step for Use

Initial Watt Knob Adjustment

Turn the WATT knob on the front panel to maximum (200W) before connecting.

Connect Amplifiers and Speakers

Connect power amplifier and speaker to the VU102's A/B or I/O interfaces for operation modes.

Power On Procedure

Connect the power cord; the VU102 turns on automatically. It can be turned off via the panel or remote.

Select Working Modes

Select A/B working modes via panel or remote. 1-IN-2-OUT allows simultaneous A and B work.

Adjust VU Pointer Swing

Use the WATT knob to adjust the VU pointer to an appropriate swing range.

Power Off Behavior

When off, A/B and I/O ports disconnect, backlight off, and speakers mute. Pointer may swing if audio signal persists.

Parameters

Usage of Remote Control

FAQ

Random VU Meter Pointer Swing

If pointer swings randomly without music, adjust WATT knob to set pointer in suitable range.

Contact Information

DOUK AUDIO VU102 Specifications

General

Frequency Response	20Hz-20kHz (±1dB)
Input Sensitivity	200mV
Dimensions	330mm x 220mm x 180mm
Input Impedance	100kΩ
Power Supply	AC 220V/110V, 50/60Hz
Weight	8kg
Power Output	10W x 2 (8Ω)
Impedance	8Ω
Output Power	10W x 2 (8Ω)