Home Theater Tips

                                                            Home Theater Tips

For home theater, the decisive factor in home theater must be the subwoofer. It can be said that the subwoofer is the soul of the entire home theater.

Why do you need a subwoofer?

1. In audio, the low-frequency part consumes the most power when reproducing it, especially the low-frequency part below 100HZ. Separating this part of the low frequency and letting the subwoofer take care of it alone can minimize the burden on the power amplifier and reduce the burden on other speakers. This can achieve smaller sound distortion and better low-frequency sound. pressure and dynamics.

2. The low-frequency sound part is most susceptible to the influence of standing waves (for example, if there is a booming sound, the texture and details of the low-frequency are affected), and when the low-frequency of the theater system is provided by a subwoofer, the subwoofer can be placed Use the position with the smallest standing wave in the listening room, or perform standing wave sound processing through a low-frequency manager or a theater amplifier with EQ adjustment.

3. Regardless of whether it is Dolby or DTS sound format, their audio tracks have a separate channel for the subwoofer, named LFE. The corresponding playback speaker is the subwoofer. If the theater system does not have a subwoofer, there will be a lot less sound when watching movies.

Space needed for subwoofer

The space required for a subwoofer is generally less than 20 square meters in a room. Two 12-inch high-quality subwoofers are enough. Of course, one can also be used. The advantage of dual speakers is that they can reduce standing wave interference. The smaller the room, the more serious the standing waves. , the more guns mean more.

For rooms below 40 square meters, it is recommended to use two 15-inch cannons to achieve better penetration and sound energy density.

Above 60 square meters, you need to use large and powerful equipment, such as XTZ SUB 3X12, a large cannon. It can give you the shock of a house collapsing, and the impact of a sudden punch on the chest, spreading the low frequency throughout the entire area. Room.

Subwoofer placement

For example, usually the subwoofer is placed at the midpoint or one-third position of the side wall (if it is a dual speaker, it is recommended to place it in a symmetrical position), which usually achieves good results.

The environment and size of each audio-visual room are different, and you need to find the best placement position through exploration. When there is no acoustic testing instrument and the subwoofer is heavy, the simplest method is the "crawling method": first, put Place the subwoofer in the listening position, with the muzzle facing the curtain, play the most familiar low-frequency test clip or test sound, and then crawl around the floor to listen to all the locations where the subwoofer can be placed. Finally, choose a location with good sound and put the bass Gun Anzhi is here.