3 Speaker Crossovers, 350W 3 Way 3 Speaker Unit HiFi Home Speakers Audio Frequency Divider Crossover Filters

Sound quality was good and I like the 3db adjustment on the mods and highs.

-Low/High 900Hz (Low High)/850Hz (High) Adjustable Switch-High/High Pitch: 5600/5800Hz Adjustable Switch

Running Crown amps and Yamaha amps, and they can handle the power very satisfied with them

Great crossover for the money

The board works as advertised. It splits an audio signal and it is capable of handling higher voltages used in hi fi audio. This is not a guided DIY kit, even the datasheet is pretty rough compared to most. You will need to be, at the VERY least, familiar with audio circuits. The capacitors are large and can hold a bit of power for a while depending on the type, so this thing could be dangerous on or off if you do not know what you're doing.There are no digital or silicon parts included, or it at least looks that way. The circuit tracelines are wide "valley" trails between different modules, and only a small number of these were used for production. This should work great for rerouting the circuit or for interfacing other circuits for a DIY project.I would imagine a person that was capable of using this for DIY may have an easier time having a board printed and soldering their own crossover, but it is still a fun experiment piece. Make sure you have plenty of solder to fill the "river of solder" tracks that connect modules. (Or design your own solution)

Career electrical engineer here. Had to reverse engineer circuit because no schematic nor crossover frequency/slope details available. Ended up having to circumvent midrange output because it was such a poor filter design.

Works as promised. Packaging was rough and so is board construction. I can't say how durable it will be but is working great so far.