The idea is that tilting the speaker to the rear moves the tweeter a bit further from your ears, so their output (in theory) arrives at your ears at the same time as the output from the other drivers in the speaker. The tweeter cone has much less mass than the other drivers, so they propogate sound faster than mid-range or woofer drivers.
When sound waves arrive simultaneously at the listener's ear, it is referred to as time alignment (which is a feature of certain speaker designs such as Vandersteen). Time alignment, however, is also somewhat dependent on the distance from the speaker to the listener. Ideally, time aligned speakers should be at least 8-10 feet from the listener.
When sound waves arrive simultaneously at the listener's ear, it is referred to as time alignment (which is a feature of certain speaker designs such as Vandersteen). Time alignment, however, is also somewhat dependent on the distance from the speaker to the listener. Ideally, time aligned speakers should be at least 8-10 feet from the listener.