2pcs 400W Adjustable Multi Speaker Treble/Bass 2 Unit Audio Frequency Divider 2 Way Crossover Filters Updated Version (2pcs)

They work just right for my speakers and a great price.

I replaced the 'crossovers' in ancient 1970's era Realistic Nova 5 speakers with these -clearly a big upgrade! (Was also replacing the hokey woofers with GRS 8PR-8's since originals had surround foam failure) My ACEIRMC crossovers have the same model# YLY-2088, but are different than what's pictured on Amazon. Mine have the input on one end the the outputs on the other end... Input screw-down terminals worked OK, but output terminals both failed and so were removed. (Soldered speaker leads directly to board) Also no instructions available for (WTF!) the 4 (all closed circuit by default) AB(bass) and CD(treble) jumpers on the boards do. So if anyone has figured this out, plz post it here. THX :)

I received the crossovers. But did not get an owners manual with them. I had to ask ACEIRMC for them. And they were very fast to respond. Once I set the cross overs to their best sound I an VERY happy!! They sound great!PROs: Fast delivery, great price, Appear well construction.CONs: Need to mark the settings in ENGLISH not just China lingoInstructions should be included in every shipment

Built sturdy enough, are compact they they do work to clean up a 2-way speaker. Tested it, and it is a first order / 6 db roll off design. However, you'll get no specifics provided (no package insert / spec sheet) so you don't know what the crossover frequencies selected actually are. You play with the little caps, and Just have to judge by listening / by ear. Which is kind of a pain because it's mounted inside a box, of course. The inductor coil is in the signal path for the "bass" output, and gives a 6db roll off around 4000 Hz. On the high side. The tall blue capacitor in the path of the "bass" output seems to serve as a high-pass filter to eliminate deep bass rumbles (6DB roll off at 200Hz) and only kicks in when cap "A" is removed, otherwise it's out of the loop. It would be good use for smaller speakers or surround speakers. I don't know what the heck the idea was with with jumper B - if left on, it appears that full range goes to your woofer, though, resulting possible midrange mud, defeating the purpose of the crossover. The high-pass side for "treble" outputs have 2 capacitors (1.5 and 3.3 uF in black) that work either alone or in parallel, depending on the how the 2 jumpers are used, thus allowing adjustment of treble cutoff, which was noticeable by ear easily enough. Neat ideas for some flexibility and put into a neat, inexpensive little package, but complicated-ish and without proper documentation.

Made it sound better than the original crossovers!

The product is very compact. I had to find my smallest screwdriver. One screw on one block would not tighten properly. I found a work-around and now everything is working as designed. My ear says these crossovers are a big improvement. I did no analytical testing, just listening.

turned my very good set of speakers into a killer set of speakers. signal separation is excellent. deep crisp bass. mid range smooth, tweeter response perfect. if you want to make an affordable upgrade to your speakers don't hesitate, buy these crossovers. easy to install. and seem to handle any amount of power you can throw at them. just lovely.

One worked one didn’t. No explanation of pin jumper placement. No translation for board markings. Bought another one that was non-adjustable and it worked perfectly. Would not buy again.