All things relatively equal, take a GK Neo 410 and a pair of GK Neo 210 cabinets. The 410 is rated at 800 watts, the 210's a 400 each. Playing through a 500 watt GK head. Now I believe the 410 is 8 ohm, but even if it was 4ohm, wouldn't the pair of 210's be louder than the single 410? If so...why? If not, then why not? Thanks!