if i have an amp putting out 400w rms bridged at 4 ohms and i hook a svc sub of 8ohm impedance up to it would it cut the output in half so it would be getting about 200w rms is this right?
with a 8ohm load on the amplifier, you may not even get a output, if so it will suck at about 50rms or so... You are significantly doubling the resistance to the amplifier output circuit = half of less of the power output...