How do you run two subs series to monoblock amp?

To run two subwoofers from a monoblock amplifier, you need to ensure they are wired correctly for optimal performance. First, check the impedance of your subwoofers; if they are dual voice coil (DVC), you can wire them in series or parallel depending on your amp's specifications. For series wiring, connect the positive terminal of the first sub to the positive of the amp, and the negative terminal of that sub to the positive terminal of the second sub, then connect the negative terminal of the second sub to the amp's negative terminal. For parallel wiring, connect both positives to the amp's positive and both negatives to the amp's negative, making sure the total impedance doesn’t drop below what the amp can handle.