Douk Audio VU3 PRO Dual Analogue VU Meter, 2-Way Amplifier Switch, Speaker Selection, Amp Audio Switcher Box 2-in-2-Out with DB Panel Display

It does what I needed. I can A - B two sets of speakers (or two amps). And I can run both sets of speakers combined. That last feature is hard to find. The remote is handy for A - B comparing of speakers while sitting in the listening position. I like the banana plug / spade connectors. Solid and versatile. I have not noticed any degradation of sound quality when using this box. For $135 is was a good price. The meters are nice eye candy, but not all that acurate. You can change colors and brightness. Or turn them off completely if you wish. The unit does have to be powered on to pass the sound through you your speakers. I have a Furman power coditioner on my setup that I turn on before applying power to each hifi component. The VU3 pro is plugged into the Furman and it powers on when the Furman is switched on. So, that works fine for me. And the VU 3 pro remembers it's settings from the last power down. So, that's a good feature.

Excelente manufactura y muy fácil de usar

Es bueno pero esperaba algo mejor por el precio

This was just what I needed. Using a tube amp and solid state amp in the same system, I'm able to switch between the two amps and use the same pre-amp, speakers and everything else is worth the price of admission. Added bonus I could always add another pair of speakers in the future if I decide I need them (doubtful). Well made, looks nice, VU meters (their accuracy which is highly debatable, but it looks cool) an added bonus and ability to change the backlighting is nice, but hardly a requirement. There is no discernable degradation of sound quality.

Great switching box. I can AB systems compare amps and speakers with ease. VU meters are cool. Love the remote. Doesn’t seem to color the sound.