Did I not buy this product, but stumbled am about the product and was amused about "400W power". Because a 12V 1A power supply is specified in particular. We expect it out ... "Volt Ampere *" = 12Vx1A = 12W input power. HM the 388W must probably come from a power multiplier, which manages more with less carry on ... bullshit. Even without large electrical understanding should surely be clear to everyone that this is either to be a numbers error or simply lied away. That error or equal 2 times (!) Suggests both headline and description can be found on a deliberate lie.
Get then reviews how "the performance is really great and I hear the 400W with rich bass out." or "the 400W range perfect for my sinus 2W speakers from the PC."
What the little versed audio fan might notice are the speaker connectors. Spring terminals for 1.5mm² cable. at 400W glow cable to this section. Of this do you get from power amplifiers with 400W not in such a small housing.