So here’s the data: Syrinc’s bandpassbox BP 12-300, 300Watt RMS, 1200Watt Peak, 4Ohm, 42-165Hz (-10db) that’s on a badge on the back of the case! Amplifier I have a blue point GTA 4100 4/2-channel power Amplifier, 4×100/2x320Watt that’s on the amplifier! So would be really nice if one of you could help me, am really desperate, since I’m not really sure how much time I’m going to get this box. I had a 20’s or 25’s Rockford Fosgate Punch Woofer with matching stable housing inside, and it went really great. Really cool. I think that cost only 50 Euro. At wooferstore there was the time in set so 2 pieces for 99 Euro. Today at 8 o’clock in the morning the Syrincs bass box came out, immediately unpacked, and into the car with it. Did the first run normal, and slowly a little turned up. Inside it shuffled, everything had so mediocre. So I opened the case, and look, the woofer had been taken out before. The screws were very messy and partly not completely turned in. So I immediately took out the complete chassi (woofer) and had to find out that on the chassi (woofer) there was no designation at all. There was nothing on top. And on the wood where it was mounted, a slightly larger circle was drawn with a pencil. So maybe the chassi was drawn. Because the original holes, rather thick, were not used, but they were drilled in separately small holes, and then screwed in the screws a bit obliquely. I fixed the thing as well as I could with a screwdriver again, and then the lid again on it, and then I ran the thing again. Then it went much better, but still not quite as I wanted it. Inside in the car everything just vibrated. I then looked, and the where ofer makes powerful stroke, so it swings extremely, but it sounds more like you only hear plastic or so funny. Hard to describe. Deep bass is quite isolated available. But if it is present, then right. I would have to get the Syrincs Sub controll next week. does it go with the better. How much watts does the power amplifier have? I mean, something is wrong, because it can hardly be that so cheap Woofer 10 times better. I’m really disappointed, please help me, had yesterday’s birthday 🙁 MfG Richi