I need help making a passive low pass filter, I'm using a app right now it's a equilizer with a lpf option, I want anyone that connects to hear all that low bass there missing, I don't care if it's cutoff at a certain level I just want to reach and boost that low bass sound better, it's a 120 watt Bluetooth amp with 2 channels and the wires are crossed over positive on one channel and negative on the other channel, I got the rest of my subs right and I probably have all the electronics to do it, just don't know the values I need, if someone could help me out, it would greatly appreciated, I have a microwave capacitor for my tweeters , talk about Overkill it is a non polar capacitor though and it has some good highs. Thanks to anyone that responds. https://photos.app.goo.gl/xQ3rVXp1csx9p2cy8