What makes the bass sound fast, is there really a thing called fast bass?
This is one of the most commonly debated subjects in any discussion group. At the end of the discussion, we sometimes read comments like “the best bass is no bass”, which we completely disagree with. If indeed the best bass is no bass, wouldn’t performers use particular brands of bass instruments that produce less bass energy, or even do away with bass instruments altogether? The problem is that most subwoofers can’t accurately reproduce the live experience of a performance. This so called “fast” bass is really a bass sound with very good resolution, so that the bass sound precisely follows the rest of the signals. The sound should start immediately when the signal appears and stop without any remnant energy when the signal stops. Both of these requirements are equally important. In practice, however, it is the second requirement that most subwoofers don’t meet. To make the bass sound stop quickly, the Q value of the bass roll-off should be low, so that the woofer cone can return to it
