Servus, After a long abstinence in the car-hifi range it has now happened again and I pulled a 35mm2 cable into the trunk. There is already a monoblock that was still “round” here. The data of the monoblock would be. ZXi1501 EXTENSION PERFORMANCE RMS 13,8 V Watt at 4 Ohm 1×300 Watt at 2 Ohm 1×500 Watt at 1 Ohm 1×750 EXTENSION PERFORMANCE MAX. 13,8 V Watt at 4 Ohm 1×600 Watt at 2 Ohm 1×1000 Watt at 1 Ohm x1500 Alternatively, there is a Pyle QA4400 III around here with the following values Maximum AUSGA NGSPERFORMANCE Stereo: 4×250 watts Backed: 2x500W (2x250W+ 1 x 500W) Minimal speaker impedance Stereo : 2 ohms Backed 4 ohms Now I’m looking for a suitable subwoofer with housing! (bass reflex would be my favorite) (if I use the monoblock -> Furthermore, it would be optimal if I could operate the whole with 2 ohms for maximum power. Since it is a monoblock I would have to connect the woofer parallel right? Bzw a double swing coil Woofe r select?) Or would you rather choose the stereo amplifier purpose 2x 500 at 4 ohms? Selection criterion for the sub would be proper pressure on bass heavy songs like zb Lil Yachty – Poland https://www.youtube.com/watch?v=s9PzYuVwCSE The car would be a Mercedes C-Class s204 Combi Greetings Fabian Ps: Unfortunately, Habs should be written into the wrong forum in the product category it could move an admin there? Thank you