Wolf, the factors in a sub not being "intrusive", i.e., not calling attention to itself as a separate entity, but giving the impression that the speakers are putting out more bass, are loudness level and crossover frequency. I have no difficulty in getting this effect with my EP500 by correctly calibrating the level(i.e, not setting it "hot")and using an 80Hz crossover. I've been able to do this with lesser subs as well, but this is because I certainly don't want any unrealistic "punch".


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Enjoy the music, not the equipment.