The Punch G500a2 is RMS Power (4 ohms) 125W x 2, RMS Power (2 ohms) 250W x 2, RMS Power (Bridged/Mono) 500W x 1
You can hook one sub to each side @ 2ohms this will give you 250 RMS to each sub. You can hook both sub wires @ 4ohms bridged that will give you 500 RMS watts between the two sub(250 each) As for the price is was good compared to what I saw on the net. But for price I would rather have a MTX 801D (800 RMS watts x 1)