Treatment FAQ

when stereo istening has to sit too close to rear wall treatment

by Mrs. Neoma Huel Sr. Published 2 years ago Updated 2 years ago

How close to the wall should you sit to listen to music?

Apr 14, 2008 · 2) Planar speakers, different room, about 12 feet apart...around 12-15 feet away for listening. 3) Single driver horn speakers, with open baffle, so only about one foot from rear wall, about 10 feet apart...I listen at about 15 feet, or even more, sometimes 20 feet away. 4) Computer system - nearfield listening.

What happens if you sit too far away from your speakers?

Ideally, your listening position should be at least 10 feet (3 meters) from the rear wall behind you, placing the quarter wavelength cancellation frequency below 30 Hz. If you don’t have that kind of space in your room, place low frequency absorption (bass traps) on the rear wall to reduce the energy of rear wall reflections.

What happens to frequency response when you move speakers closer to wall?

If the speaker is too close to the rear wall, two things happen: the bass response will be increased due to reinforcement from the back wall and secondary reflections of mid-bass and mid-range frequencies will cause a secondary sound wavefront that is slightly delayed from the initial wave-front to come directly at the listener.

Should I move my studio monitors to the front wall?

Absolutely, avoid sitting right against your back wall. That’s the worst position for comb filtering (unless you have the wall behind you treated with massively thick absorption). Also, if you plan to use diffusion on your rear wall, you’re going to need some space behind you for the scattered sound waves to disperse!

What happens if speakers are too close to wall?

Speakers should be at least 2-3 feet away from the nearest wall (especially if your speaker is in a corner). Many speakers have rear-facing bass ports. Positioning a rear bass port too close to the wall will reflect sound waves, resulting in time smearing.

What is the 38% rule?

The placement method used here is based on the "38 percent rule" which theorizes that the best listening position is 38 percent into the length of the room, when measured from either the front or rear wall. This offers the best compromise of peaks versus nulls for any given room size.

How do you sound treat a speaker room?

Start by mounting bass absorbers and treating your first reflection points. Apply treatment to the ceiling and all walls of your room, if you can. To prevent slap / flutter echo you usually want to avoid any large areas of bare wall or ceiling. Aim for left-right side wall symmetry whenever possible.

How can I improve my acoustic listening room?

One of the simple and affordable ways to get an immediate improvement in sound quality is to reduce or eliminate primary (or early) reflections. These are the sound waves generated by your speakers that bounce off your sidewalls, floor and ceiling before reaching your ears.

What is the ideal listening position?

The ideal listening position is 38% into the length of the room, centered between the left and right walls. However, this distance will vary from room to room, depending on the layout. For most home studios, it's best to find your listening position before you determine where to place your monitors.Mar 17, 2021

How far should monitors be from ears?

The right distance from you

This means not meters away, and not inches from your ears – one to two meters should be just fine – the manufacturer usually recommends the ideal distance for their product. Generally speaking, the closer they are, the less influence from the room's acoustics you will hear.
Jan 26, 2022

How do I set up an audiophile room?

We recommend starting with an equilateral triangle where the distance between the speakers is equal to the distance between each speaker and the listening position. Usually you want the speakers either right up on the front wall as close as you can get them, or at least 3-4′ away from the front wall.

Does drywall reflect or absorb sound?

How Does Soundproof Drywall Work? Drywall is primarily comprised of gypsum or calcium sulfate. Gypsum is the core component to drywall, as it is affordable, fire-proof, and helps dampen noise.May 15, 2019

How do you treat a room for mixing?

Place your listening position and speakers in an equilateral. Triangle. With your listening positionMorePlace your listening position and speakers in an equilateral. Triangle. With your listening position centered between your long walls. And facing your short wall.

Where do you put acoustic panels?

Place acoustic panels at the first place on the wall where sound waves tend to hit before reaching the listeners ears. 2. Place 3' to 6' up from the floor in areas where much of the sound is produced by people sitting or standing in enclosed spaces.

How do you acoustically treat a small room?

If your room is small, i.e.; less than very large (see above), you must ALWAYS face the short wall. NOT facing the short wall usually will place the listener in the CENTER of the room, which is a very bad place to try to get accuracy in the low frequencies.Aug 12, 2021

What is a 2 channel listening room?

What is a 2 channel listening room? It is your oasis of sound where you can get away from the noise pollution and noisy electric appliances.Nov 26, 2020

Where is the speaker in case 1?

Case 1 has one speaker located in a corner and the other next to an open door. The fireplace is an early reflection problem. The cabinet breaks-up the corner reinforcement and the acoustic treatments take care of the fireplace and corner. The sub is reversed-phase and aimed a little at the fireplace to break up room resonances. The sofa is tight against the back wall to force rear wall reflections to be very early and not noticeable.

How do loudspeakers radiate sound?

Box-speakers should be moved away from the walls. Loudspeakers radiate sound from all directions, not just from the front where the drivers are located . The lower the frequencies are, the more the sound will "wrap" around things in the listening room. Because of this "wrapping" effect, the initial sound wavefront from a loudspeaker can reflect off nearby walls, including the wall directly behind the speaker. If the speaker is too close to the rear wall, two things happen: the bass response will be increased due to reinforcement from the back wall and secondary reflections of mid-bass and mid-range frequencies will cause a secondary sound wavefront that is slightly delayed from the initial wave-front to come directly at the listener. Humans can detect slight differences in arrival times like this. This is how humans are able to use their ears to pinpoint the location and distance of a distant sound with some accuracy. In general, if the secondary reflections are very closely timed from the initial sound wave, the human brain will filter them out. This is why reflections from the speaker box itself are not usually noticeable. A good rule of thumb is to pull box speakers out at least 1.5 feet from the back wall of the listening room. 2-3 feet is better, but you may lose some bass reinforcement depending on your speakers and room size.

Does Case 2 have speakers?

Case 2 has both speakers in corners . The only way to deal with reinforcement is to put lots of acoustic treatment there. The sofa is well away from the wall behind and that wall should have diffusers or absorbing curtains/panels as well.

How to know if your speakers are directional?

Your mid-range and bass drivers are less directional, so they don’t need to be positioned as precisely. To quickly check if your speakers are set up properly, from the reference point you should see only the front baffle of the speaker — not the sides of the speaker cabinets. You can experiment with speaker distance by moving your speakers along the 30 degree lines. Check the manufacturer’s documentation for guidelines on listening distance and speaker-wall distance(which we will cover shortly).

How to get a flatter bass response?

Start by facing the short wall of your room, so your speakers fire down the length of the room. It’s usually better for the listening position to face the short wall vs the long wall. This tends to give a flatter bass response.

How far should a reflective wall be from your ears?

Also, this lets you maximize the distance between the rear wall and your ears. If your rear wall is reflective, it should be at least 10 feet from your ears… otherwise it needs treatment (more on this later).

What can you use this room setup guide as?

You can use this room setup guide as a compass as you embark on your quest for sonic clarity.

Which triangle should listener and speaker be positioned in?

Listener and speakers should be positioned in an equilateral triangle

Can bass dip in a room?

Yes, there will be a dip due to the bass null at the center of the room. You can reduce it by moving forward or back from center, and by installing lots of bass traps.

Sangbro

Hello, I happen to find an good article about the ideal speaker placement. (Easiest version without numbers & formulas that I can’t honestly understand :D) I’d like to share. Personally I find two things interesting. 1) Only use 40% of the room area (38% rule) 2) Put the speaker as close as possible to the back-wall (next to bass trap) Of course, minor adjustment would be required depending on speakers. Still, I think this is helpful to figure out the very first step. http://arqen.com/acoustics-101/room-setup-speaker-placement/ https://realtraps.com/art_room-setup.htm Happy listening. p.s.

sandyk

2) Put the speaker as close as possible to the back-wall (next to bass trap)

Sangbro

That depends entirely on the design of the speaker, and is not normal.

Sangbro

Actually it’s kind of interesting because it seems there are two school of thoughts?

sbank

The OP's original posted method is way off what's generally recommended or intended by most speaker designers. Here's a link to the definitive guide to speaker placement used by many of the best and recommended by companies like Vandersteen.

davide256

Notice carefully that the first article is for studio placement with extensive wall baffles... pretty much making the speakers into a headphone

sbank

Yeah, that 2nd article is from Ethan Winer, who has been a subject of much controversy on these topics on other forums over MANY years. His corner on audioasylum provided lots of tips for those wanting to build bass traps, etc. He later got into some heated stuff debating the merits of other manufs. acoustic treatment products on S'phile forums.

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