Amp / Speaker switcher & analog VU meter

I bought this to 2-way switch between my digital surround amp and analog tube amplifier connecting my front monitors, and of course, to visualize the VU meters. 

The Douk Audio VU3 Audio switcher box and VU meter has a powerful design and excellent compatibility: all channels have a fully isolated design, and the GND of each channel is independent without mutual interference. Supports all types of amplifiers, such as BTL/Class A/Class B/Class D digital amplifiers/tube amplifiers, etc. High-quality components ensure the best possible performance of the VU3.

Highly accurate VU meter (dual 60*35mm meters) with peak LED display and a perfect match for the custom-made VU driver board. Backlight brightness adjustment: 4-level adjustment (can be disabled).

Built-in large power load resistor with metal wire winding, each channel supports up to 300W of power.
Fully isolated transformer for audio signal acquisition, preventing crosstalk from the VU driver board, ensuring clear and clean sound.

Solid CNC all-aluminum alloy housing, large pure copper banana jacks ensure minimal signal attenuation during transmission.

Includes: 5V power supply and remote control.

AliExpress price: €90 with discount