How to Use Subwoofer Correctly? Connection, Setting, Placement

For beginners, the most annoying thing about subwoofers is how to connect, place and set them up to get ideal low-frequency sound effects. The following will share with you some basic settings and practical applications to make the subwoofer work best.

1. Subwoofer connection
Subwoofers are mostly connected to the AV amplifier output via RCA Audio wiring. If the speaker connection terminal has a special LFE (Low Frequency Effect) mark, you can connect this set of RCA Audio terminals first. If not, you can connect to the L or R Line-in input. The two effects are basically the same. The amplifier side is mostly connected to the subwoofer Pre-out. In terms of connection, there are actually RCA Audio cables dedicated to subwoofers. Since low-frequency audio is more susceptible to interference during transmission, the wire shielding will be better done. In addition, the wire core configuration is usually thicker and more suitable for transmitting low-frequency audio.

If you connect a two-channel amplifier, if the machine has a Subwoofer Pre-out, the situation is similar to the above; if not, you need to use two RCA Audio cables to connect the left and right channel Pre-out to the L and R inputs of the subwoofer to fully output the left and right channel low frequencies of the music. In addition, since most two-channel amplifiers do not have low-frequency management, the crossover point of the subwoofer also needs to be set independently on the speaker. The situation is more diverse. The following settings are mainly based on home theater surround sound effects and AV amplifiers.

2. Subwoofer settings
Subwoofers provide a variety of settings depending on the model and positioning. This article mainly introduces some basic settings that are necessary for entry-level to high-end models:

3. Subwoofer placement

Subwoofer placement is another important factor that affects the sound quality. Usually, due to convenience, placement, appearance and other reasons, and the weak low-frequency directionality, many friends will place the subwoofer in the living room or the corner of the room. Placing it in the corner can also help enhance the low-frequency volume, but it is also prone to standing waves, humming, interference with mid- and high-frequency, and affecting the low-frequency level. The following introduces two more commonly used subwoofer placement methods:

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