What will be louder 4x10 or 1x15? I am running the carvin cyclops and can't get enough juice out of it. I am looking for extention cabs to increase my volume. The head is 275 watts at 4 ohms. The cabinet has a 2x8 with 1x15 and a horn tweeter. I can't get this rig to cut through and still sound good. I am playing it all out with the gain on 3+ and it still isn't enough. Other guys with the same head, carvin R600, exult about having the volume knob at less than five and having all the sound they need. What are they playing in, a closet backing a ukulele? Am I doing something wrong. Maybe they have the gain knob and the volume knob confused. So I am considering the 4x10 from the speakerhole. Does anyone own one of these? It is all I can afford for a quick fix before the band throws me out in the street.