Thus, in the correct installation at the rear subwoofer bass is still the front. (As opposed to Chris Shumway). The trick is that the human ear perceives the direction of the sounds only in a certain frequency band, and this band is for outside the range of the subwoofer. The figures are as follows: in theory, affect the localization of components of the sound with frequencies from 300 Hz to 3000 Hz, while the subwoofers are rarely cut-off frequency low pass filter (LPF) above 100 Hz. In other words, the source of the bass will seem to us to front speakers. It would seem that such an alignment is completely solves the problem, and everything should be fine, but the practice is different.
In fact, a tempting picture 'Rear subwoofer – bass front' will arise only if the installation was engaged in a skilled master, and the systems in which the bass is still behind – not so rare. Even in competitions avtozvukovomu sport where preparation machines do not dilettantes, rear bass is a perennial headache for the participants. There are several reasons: firstly, if the LPF not efficient enough, the subwoofer can reproduce such components of sound, which can affect the localization and, secondly, if the bass power the front speakers are small, then between the subwoofer and the front will be 'a failure', and thirdly, when there is insufficient sound insulation, together with sound of the subwoofer, we will hear from behind a lot of extraneous overtones produced by rattling panels and obshivki.Est and a few other nuances, which we do not sharpen vnimanie.Chto do? Here are some tips can follow to avoid the localization of the bass back and 'make friends' theory and practice: When choosing an amplifier for the subwoofer takes precedence model, in which the built-in crossover (namely – LPF) has a higher slope decay – 24 or even 18 dB / oct.