130W 2 Way Crossover for Bookshelf Speakers and Subwoofer Crossover Speaker Treble a Bass (2PCS)

I don’t possess the technical knowledge or testing equipment to tell if these crossovers perform how the listing claims they do, but I do know that these pretty much fix everything that ails the sound quality of the Dayton Audio B652 speakers. The B652 speakers are very popular, mainly because of their crazy cheap price point, rather than their sound quality that is really only moderately acceptable. But, that crazy cheap price point leaves lots of room for inexpensive upgrades that will vastly improve the sound of these speakers to allow them to punch well above their weight class. Now, I realize that one cannot throw whatever crossovers into whatever speakers willy-nilly and expect good results, but the factory “crossover” in the B652 is so rudimentary that there is nowhere to go but up. As you see in my picture, the factory crossover is nothing more than a single capacitor (resistor?) glued to the terminal cup that performs some kind of frequency roll-off, but it was unclear to me if it was performing high pass or low pass filtering. It didn’t really matter though, because it was doing a poor job with whatever frequency it was rolling off and it needed to go. I really believed any half-way proper crossover would be a vast improvement, and my ears tell me I was absolutely right after I installed these XFFCSEC crossovers.In addition to these crossovers, I also fixed a few other problems that plague the B652 like adding internal bracing, stuffing the cabinets with fiber fill, and installing some rear ports to improve bass response. So, for $27 ($14 for crossovers, $7 for ports, $6 for fiber fill, and nothing for the scrap wood brace) I transformed the sound quality of $40 speakers into what I would expect to hear from $100-$150 speakers. Also, being a semi-DIY project added that wonderfully warm afterglow of satisfaction after I was done. I originally bought the B652 speakers to use as fronts in a garage home theater setup that was more about family fun than high quality audio, so their low price filled the bill perfectly. But, when I needed/wanted new speakers for music in my garage, I realized it was going to be a lot cheaper to do these upgrades rather than build from scratch as I originally planned. Building speakers is a lot more fun, but it wasn’t important enough to me to spend $100 on parts and go through the construction hassles for speakers that will see pretty limited use.I think these crossovers are a great way to breathe new life into some older speakers or, as I did, fix underperforming new ones. The build quality is solid with all components firmly attached to the board and clear markings for wiring. One of my boards did have a small crack, but it was in a spot that didn’t affect functionality and I’m pretty sure that it won’t get any worse. The mounting stand-offs are a really nice addition, although I had a couple that were unusable because the screws would not go in straight for some reason. Not a big deal as three-legged mounting worked just fine. This was a great way to turn some truly mediocre speakers into some pretty decent performers that sound very clean even when cranked up a bit. They are especially good with the addition of a powered subwoofer that is handling all frequencies below 180Hz which allows me to actually hear some good mid bass.

Used to replace a bad crossover in a pair of JBL 2800 speakers. One speaker had no tweeter sound while the other one did work. After replacing crossover in both, I found the tweeter was more pronounced than the was before. Easy hookup, and not complicated. Using in garage, so for my purpose, these were just what I wanted. I recommend .

Opened up this speaker to find woofers running full range and has a 1.5uf capacitor on tweeter. Tried these because testing speakers and designing a crossover looks like a pain. These work OK, I have to turn up the volume more to get them as loud as before but seem to distort less and the S’s people speak sound like less of a whistle now.

Used these crossovers with a KEF T27 tweeter & B110 midrange/woofer in a homemade enclosure. It sounds perfect. Was going to toss the KEF's as they were 50 years old when I heard they are still sought after. Built the enclosure, used the XFFCSEC 130W 2 Way Crossovers, plugged them into my amp and the rest is awesome. The perfect marriage between the T27 & B110.

Be aware, this is for normal tweeter and bass crossover, not sub-woofer.But works exactly as described, also includes very nice mounting hardware.

Use these on some four range speakers for our RVAdded a Twitter to them Got pretty good sound from both speakers now

For $7 per assembly, I like what I'm getting in crossover parts. Each has two inductors: a neat little laminate core and a ferrite/air core (more on that). Add to that a poly capacitor and a resistor -- both with 5% tolerance rating -- and a versatile little PCB. Bonus points for a set of plastic standoffs with threaded inserts and screws. It's a grab bag because the seller doesn't reveal values of half the components.Product description in "About this item" is largely nonsense. There is only an inductor in the woofer circuit, which can only possibly be a 6dB/octave filter, not 12dB/octave as claimed. Having measured both inductors, there are no 4Ω or 8Ω permanent magnet drivers likely to cross near 3500 Hz with the parts on this board. It's a roll of the dice were frequency division occurs, and will differ vastly between speakers of different impedance.But relieved of any expectations, there's fun to be had. I measured all parts from one assembly with DATS3 and also a hand held LCR meter. Both resistor and cap are within 5% of stated value. ESR of the 3.3µF capacitor is 0.33Ω @ 1kHz. Laminate core inductor is 0.82mH with 0.4Ω DCR. Ferrite core inductor is 0.33mH with 0.4Ω DCR. The ferrite core slides out easily and this can alternately be used as a 0.14mH air core inductor.Extra holes with solder pads in useful places on the PCB board add versatility for the hobbyist. For example, holes in the woofer filter circuit allow adding either an axial or radial shunt capacitor to create a 2nd order low pass filter.I've attached a schematic of this circuit with inductor values as measured.

They were easy to install in Optimus XL5 speakers. I see a big drop off in the highs. It may be the 2.2 resister in the tweeter circuit. They do sound better than stock. I will check the phase of the tweeter circuit.