It’s clear enough that I need a new inductor to fix the mid-woofer. Cable and capacitor size should be checked again. Even my friend (not an audiophile) can hear the different! The mid woofer have not reached my satisfactory level. I can hear more detail, even from music like Siti Nurhaliza (Cinta Tak Berganti), to Kari Bremens (A Lover in Berlin) and Rim Banna (The Mirror of My Soul). Especialy the signal cable inside the crossover. The cable also will be upgraded to a better one. I’ve order a special inductor and hope they can make it in small size so I can fit them inside. Because this is non-elco based capacitor, so you can see the giant size of the new capacitor. And for the mid-woofer application, I chose the lower grade (yellow tube) than the one used for the high pass filter. I used better capacitor for the high pass filter (the black tube).
I’ve seen a lot of electronic consumer product use this brand.Īll of the capacitor were upgraded. A well known brand for Capacitor in China, I guess. I removed all the “tiny-little-cute” capacitor from the board. The components are: 4.7 uF, 6.8 uF, 47 uF, 0.8 mH, and 0.25 mH.īelow is just another view of the stock crossover. Need to fire up my simulator to check the actual graphs, but since I think this is just for fun, I don’t sweat a lot 😉 I think they build a bandpass filter and both woofer works in different region. The two mid woofer is not working on same region. They use 1st order for high pass section, F3 at around 8 kHz I think (if I calculate them correctly). Also you can find small inductor with ferrite. The internal crossover uses “bad” non-polar eletrolytic. I think it’s good enough for most people, but not for me 🙂 Need to be improved a little bit in the low bass region. I think the subwoofer is for movie (THX Certified) than music. This system has a little bit bright sound, metallic, a little bit harsh, not too detail for music, and average mid. Anyway, since this is just for fun, so let’s do it. It’s quite challenging for me, since you know that I don’t (never) expect much from a multimedia based computer (some of them are good, but not good enough for my taste). The target of this mod should fulfill 3 main criterias: I think so far MX5021 is one of good candidate to be modded (though I prefer Altec CS21 or 621/641 series, but they have been discontinued).
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