In fact, since the subwoofer has such a refined range of low-frequency audio emissions, it is often said to be even more important to properly position this loudspeaker than it is to properly position almost any other speaker in your sound system. You can imagine the subwoofer as the booming voice that is heard above the rest of the voices in a choir. It is simply not a piece of equipment that can be easily hidden or covered up-and for good reason.
After all, you are using a subwoofer to help the bass stand out, not remain hidden among the rest of the audio track. Maybe it has to do with the setup of the other equipment in your home theater room, or maybe it has to do more about protecting your equipment from other types of damage. Whatever your reasoning might be, you might be in a situation where the seemingly best option is to face your subwoofer backward.
If the subwoofer is placed backward, the audio signals will essentially have to travel up the wall and around the room in this manner rather than being cast out into the free air and pointed directly towards your ears.
In this case, the low-frequency bass emissions will likely sound muffled, and the subwoofer will not be as effective.
If you have no choice but to face your subwoofer backward, you can likely expect that the overall sound quality to be diminished in comparison with a more effective placement.
But, there are still options for you. First, you can choose to remove the subwoofer from the wall and any furniture to avoid this obstruction of the sound waves emitted by your equipment.
The short answer is, it may not be a major problem, but we do not recommend it, especially if it is a front-firing subwoofer or a CRT TV. This is because doing so might cause unnecessary sound reflection and poor bass quality.
However, if you are working with a down-firing subwoofer or if you have enough space behind the TV, placing the sub behind the TV may be ok. Nevertheless, if you have no better place to put the sub, you can follow some basic principles that we will discuss here to avoid the drawbacks and meet your entertainment needs.
If you place your subwoofer behind your TV, you will likely get poor quality bass output. This is particularly true if the distance between the TV and the subwoofer is too small. If you have to place the sub behind the TV, you need to get the exact distance that best suits your needs by making trial and error your friend. To properly understand why putting a subwoofer behind a TV is often not the best solution, consider the following cons of placing your subwoofer behind your TV:. By this they mean bass waves radiate in all directions.
It is true, bass waves are omnidirectional, but the quality of bass you will get from a sub depends on what happens when the sound leaves the sub. In other words, room acoustics plays a big part in the overall quality of bass in the room. Because of this, the placement of your sub has should be different depending on the acoustic of your home theater room. Remember, some TV screens are quite large. When the reflected sound wave bouncing off your TV combines with the source sound waves coming from your TV, the result is acoustic interference.
In other words, the position of the TV interferes with the interaction of sound waves from the sub and soundwaves reflected from the TV surface. One of the main reasons we often recommend that people place their subwoofer behind their couch is for people who like to feel the vibrations from sound effects.
When there is a huge explosion or thunder in a movie, some people want to feel the vibrational effect. This is why we have bass shakers. Placing the sub behind a TV will cause the TV to vibrate much as the coach would. This is especially true if you place the sub too close to the TV. This occurs when a specific frequency is reinforced by room factors or by similar wavelengths occurring at roughly the same time and place.
On the opposite end of the spectrum are bass nulls, which happen when reflecting waves cancel one another out, leaving you with a dead spot. In order to deal with room acoustics and the effects they have, you can choose to work either with the room or against it.
Working with the room involves acoustical treatments along with smart subwoofer placement and adjustment. Working against the room can involve anything from fancy EQs to room correction software.
We prefer the former tactic to the latter when possible. As a general rule, placing your subwoofer in a corner or close to the wall is going to result in more bass, but not necessarily the best bass. Small, low-powered subwoofers like the ones that usually come with home-theater-in-a-box systems and soundbars tend to use small drivers paired with low-powered amps and, thus, tend to benefit from some boundary reinforcement. In fact, high-quality subs tend to sound their best when pulled at least 8 to 12 inches from any wall.
Subwoofers also work better in the front half of your listening space, placed closer to your front-channel loudspeakers to lessen timing delays and phase cancellation. Here are some handy suggestions for where to place your sub based on what sort of flexibility you have, and what to expect from it living there.
For the purposes of this discussion, the term crossover refers to the point at which a speaker stops producing bass and the subwoofer takes over.
As you can imagine, this setting is critical for getting the best possible bass response in your room. Measure up carefully and do some research, a forum member has been doing cardboard mockups.
I resorted to taping table placemats together to mimic the footprint of different subwoofers. Crude but effective. DaddyR Active Member. Mine is in the same spot with the same tidy cable management!
As far as I understand it, LFE isn't directional so you don't tend to loose the sounds. Trojan Distinguished Member. DaveWillo said:. I have the driver aiming out of the corner and it sounds fine to me View attachment Trojan said:.
Glad I came across to your post. Thinking of doing something similar myself and putting my sub behind my equipment rack which is open. Jase Distinguished Member. Jase said:. I wouldn't worry. I have one of my Subs firing straight into other AV kit.
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