Do you care about the nuances of your audio experience when watching TV or a movie, listening to music, or gaming? If so, you probably already appreciate how speaker placement can make a significant difference in sound quality. However, you may not consider the extent to which where you sit in the room can also impact how impressive your setup sounds. According to some, following the “38% rule” is the key to maximizing your listening pleasure. The rule states that a person should generally aim to sit 38% of the room’s length from the front wall (where the main speakers and TV are typically located) to minimize the negative effects of low-frequency valleys. However, in practice it’s less of a rule and more of a good starting point to start getting an idea of where you should sit to get the most out of your audio system.
First, it’s worth noting that on communities like Reddit’s r/audioengineering subreddit, several users who claim to have decades of experience recording music say they’ve never even heard of this rule. Those who have heard of it point out that it is not a rule, but simply a guideline. More importantly, they claim that this only applies in cases where the speakers are mounted directly to the front walls. The effectiveness of the “rule” may therefore vary depending on your configuration. This is just one reason not to consider this suggestion as law.
Why you shouldn’t worry about following the 38% rule perfectly
The 38% rule offers a decent way to start testing different listening positions while you search for the sweet spot. That doesn’t mean it’s always practical. In some cases, following the 38% rule would require someone to sit way too close to their television screen for comfort. In a smaller room, an alternative to the traditional 38% rule would be to reverse it, aiming to place 38% of the length of the room from the back wall instead of the front wall.
It’s also worth noting that the creator of the rule made it clear that he never intended to treat it as such. According to the Acoustics Insider YouTube channel, the 38% rule is generally attributed to studio designer and acoustic treatment professional Wes Lachot. Lachot himself apparently made comments on forums where users discussed this topic, clarifying that he did not want this suggestion to become a rule that others would have to strictly adhere to. He simply stated that in a typical mid-sized room with front wall mounted speakers, the goal is to get out of the 50% listening position (or the middle of the room). Applying the 38% guideline achieves this goal in many cases.
Please note that Lachot’s audience is also made up of engineers and musicians. For the average person, it may not be necessary to determine the absolute perfect sweet spot.
How the 38% Rule Can Help
Just because you don’t need to follow the 38% guideline (which, again, was never meant to be a rule) as gospel doesn’t mean it can’t be helpful. Granted, sitting exactly 38% of the room’s distance from the front wall is probably not a requirement for a pleasant audio experience. Still, the 38% rule is a good starting point to help you determine whether you’re sitting too close (or too far) from the front wall to fully appreciate the capabilities of your audio system. Start at 38%, then move around to find the sweet spot for you.
It’s also wise to remember that the 38% rule is just one of many tips you can use to get the most out of your equipment. For example, you can also examine how the surface you place your speakers on affects sound quality. Or, not to be confused with the 38% rule, which applies to the listener’s position in the room, there is the 83% rule, which can theoretically help you identify the ideal speaker position.
Trying to apply all of these tips as if they are laws you must follow can prevent you from truly enjoying your audio system. You don’t want to spend so much time trying to arrange your bedroom according to feng shui that you forget to prioritize your own comfort and satisfaction. These types of guidelines can be helpful when applied as general suggestions, but you don’t have to worry about following them exactly.
