One Little Bear VU3 VU Meter 2-Way Amplifier Speaker Switcher Remote Control Adjustable Backlight

One Little Bear VU3 VU Meter 2-Way Amplifier Speaker Switcher Remote Control Adjustable Backlight

Function Introduction:
VU3 is a multifunctional device integrating VU meter and power amplifier/speaker switcher. While switching audio signals, you can enjoy the visual experience brought by VU meter. It supports up to 100W power input and output. It also supports remote control. You can quickly set VU3 to work in the best working state. All settings can be saved when power failure. In addition, VU3 also has a built-in protection load. When a power amplifier is not selected, it will automatically switch the built-in load to connect to this group of power amplifiers to ensure that the power amplifier will not be unloaded. It can protect some digital power amplifiers or tube power amplifiers. All channels of VU3 adopt a fully isolated design, and each group of grounds is independent, which can be suitable for all power amplifiers, such as BTL-type digital power amplifiers.

Features:
VU3 VU meter & audio switcher box:
- As a VU meter, with dual 60*35mm large meter, can dynamically decorate audio environment and provide incomparably visual effects when switching audio signals.
- As an audio switcher, easily to switch between two amplifiers and 2 pair of speakers, no need to plug in and out cables repeatedly to avoid wearing the contact point of the sockets.

Powerful design and strong compatibility:
- All channels adopt fully isolation design, each channel's GND is independent without mutual interference. Supports all kinds of amplifier such as BTL / class A / class B / class D digital amplifier / tube amplifier etc.

High-quality components to ensure VU3's best working performance:
- 1. AC 250V 5A large current relay, easily to connect amplifiers and speakers with high power.
- 2. Built-in large power load resistor with metal wire winding, each channel supports up to 100W power input and output.
- 3. High-precision VU meter with peak LED display, and match perfectly with customized VU driver board.
- 4. Fully isolation transformer to acquisite audio signal to avoid crosstalk from VU driver board, ensure clear and pure sound.
- 5. Solid CNC full aluminium alloy case, large pure copper banana speaker jacks ensures minimum signal attenuation during transmission.

Easy Use & Perfect Details:
- Powered by micro-USB 5V, with built-in protection load for speakers. With remote control, can quickly set the working status from distance. All settings can be saved after shutdown, more convenient to use.

Proper size with exquisite appearance:
- Cool black case, warm VU meter and clear indicators looks vintage and dynamic, can perfectly match with a variety of usage scenarios, very suitable for audiophiles who have more than one amplifiers or speakers.

Product Parameters:
- Amplifier/speaker connection quantity: stereo quality, 2 groups for amplifier and speaker separately
- Maximum input power: 100W/each channel
- Support power amplifiers: All types of power amplifiers. Including BTL, Class A, Class B, Class D digital power amplifiers, tube amplifiers
- Adjustable backlight brightness: support, a total of 4 levels, including directly turning off the backlight
- Remote control function: support
- Power amplifier no-load protection: support, built-in high-power load
- Saving power settings data: support
- Working mode: 2 in 2 out, 2 in 1 out, 1 in 2 out
- Power interface specification: TYPE C
- Working voltage: DC 5V 1A and above
- VU meter size: 60*35mm
- Machine size: 180*150*70mm (L*W*H)
- Net weight: 1000g

Package Included:
- 1 x Speaker Amplifier Switcher VU Meter
- 1 x Remote Control
- 1 x User Manual
- 1 x Type C Power Cord

Note:
- Batteries for the remote control are not included.
- It is assembled and ready to use.

Using Steps:
- VU3 will automatically turn on when connected to the USB power cord (to turn it off, press and hold the AMPLIFIER button for 3 seconds, or you can turn it off via the remote control).
- Connect your amplifier to the corresponding AMPLIFIER input A or B of VU3, and connect your speaker to SPEAKER 1 or 2.
- Use the AMPLIFIER and SPEAKER buttons on the front panel to select the corresponding power amplifier and speakers to work.
- Adjust the proper swing range through the SWING-RANGE knob.

Precautions:
- It is better not to connect VU3 to a power amplifier with actual power greater than 100W, as this may cause damage to the VU meter. Here, 100W refers to the actual power output from the RMS to the speaker. It is not the nominal maximum power of power amplifier parameter. For example, your power amplifier can output up to 200W. But you actually only use it in the room, and the volume is only about 20W. Then the actual power used is 20W, so it is no problem to use it at this moment.
- The USB power supply can only be 5V single voltage, and the current is at least 1A. It is not recommended to use fast charging sources with dual voltages, such as 5V and 9V integrated fast charging sources.
- VU3 can only have one set of power amplifiers or speakers working at the same time. Not support simultaneous parallel operation. When the power is off, power amplifier B and speaker 2 will be selected by default. Only when the machine is restarted, it will work according to the actual state of the previous settings. This is because the relay in the machine is in the reset state when the power is off. Please note that. Thank you!

FAQ:
Q1: The pointer of the VU meter is moving, even when there is no music.
Solution 1: Due to poor USB power supply, it has large ripples and causes great interference. It is recommended to change to a better USB power supply.
Solution 2: The output power of the power amplifier is too large. The noise is loud. There is no solution for this at present, it can only be adjusted via the SWING-RANGE knob.

Q2: When selecting a function with the remote control, the backlight of the VU meter will flash.
Answer: It is normal. It is designed to function like this.