So right now I’m going through several concepts for my boot expansion and there’s also one with 3 subs out. Now I want to know up to how much Ohm the power amplifier has to tolerate. A) 3Woofer with double swing coil á 4Ohm B) 3Woofer with double swing coil á 2Ohm Of course there’s also the question on parallel or in row! Of course I would prefer parallel because you can tickle with this still proper power from the amplifier. nt which fit into my concept please post. MfG hookie ps. have you seen the expensive (500€) tube amplifier (for the car) at ebay? Is this a joke? pps. hope that is true with the resistance in the topic