speakers too close to the floor? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 20 Old 05-23-2012, 10:24 PM - Thread Starter
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as the title suggest can towers be too low? i want to rearranged my entertainment center and was toying with the idea of putting towers on the floor. now i now the tweeters wont be ear level but is that the only consideration, or how low is too low? thanks for any advice in advance.

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post #2 of 20 Old 05-23-2012, 10:27 PM
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Quote:
Originally Posted by manuetdeo View Post

as the title suggest can towers be too low?

Yes.

Quote:


i want to rearranged my entertainment center and was toying with the idea of putting towers on the floor. now i now the tweeters wont be ear level but is that the only consideration,

You'll get an unnatural boost in the lower midrange that makes actors and singers sound like they have chest colds and assuming the speakers are horizontal will have other problems in the cross-over regions.

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or how low is too low? thanks for any advice in advance.

Lower than when they're standing normally.
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post #3 of 20 Old 05-23-2012, 10:37 PM
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Quote:
Originally Posted by manuetdeo View Post

as the title suggest can towers be too low? i want to rearranged my entertainment center and was toying with the idea of putting towers on the floor. now i now the tweeters wont be ear level but is that the only consideration, or how low is too low? thanks for any advice in advance.

In another thread you owned Polk Monitor 40 speakers - are you
talking about them?

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post #4 of 20 Old 05-24-2012, 07:59 AM
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Quote:
Originally Posted by manuetdeo View Post

as the title suggest can towers be too low? i want to rearranged my entertainment center and was toying with the idea of putting towers on the floor. now i now the tweeters wont be ear level but is that the only consideration, or how low is too low? thanks for any advice in advance.

Towers are designed for floor placement. what are you using. If the tweeters are not at seated ear level, adjust the spikes or rig up something that tilts the speaker back a little.

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post #5 of 20 Old 05-24-2012, 08:16 AM
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The fact that they are floostanding towers means they should be placed on the floor or a short base or spikes.

What speakers are you talking about?

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post #6 of 20 Old 05-24-2012, 09:23 AM - Thread Starter
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currently i have some monitor 40s but was looking at some def tech towers as fronts and in my new designed layout the tweeter of the polks would be about a ft below ear level and was looking to find out what kind of difference this makes, also this new layout would allow for a vertical center by virtue of stacking my components on either side of it

btw the bp8020st is what i was looking to get

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post #7 of 20 Old 05-24-2012, 10:13 AM
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By "on the floor", do you mean laying the speakers on their sides on the floor?

If so, that would definitely cause significant audible problems.
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post #8 of 20 Old 05-24-2012, 02:09 PM - Thread Starter
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Quote:
Originally Posted by donutfan View Post

By "on the floor", do you mean laying the speakers on their sides on the floor?

If so, that would definitely cause significant audible problems.

no i meant keeping them vertical. i think i didnt ask my question right. i am in the process of transitioning from a all purpose media room to a tv/music only family room and turning my kids play room into a movie/game only room. my family room will only consist of tv, htpc, fios box, amp and the iffy 2.1-5.1 setup(which is where im stuck). with my current polks i could leave in fam room anf get new speakers for movie room or go diy for movie and use polks as surrounds and get floorstanding for fam and only have 2.1 there. either way im building an enterntaiment center and was concern about the effects of low tweeter placement mostly for music in fam room if i leave polks alone

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post #9 of 20 Old 05-24-2012, 02:28 PM
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If you leave the Polks in the family room, why dont you just put them on stands to get the tweeter at ear level?

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post #10 of 20 Old 05-24-2012, 02:48 PM - Thread Starter
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Quote:
Originally Posted by afrogt View Post

If you leave the Polks in the family room, why dont you just put them on stands to get the tweeter at ear level?

are there any child proof stands? im not real familiar with stands only ones i've ever seen are those skinny bose ones and those would not work with a 15 month old. the polks are currently straped into back to the shelf they sit on, which may move to movie room to make way for prettier and shorter entertainment center

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post #11 of 20 Old 05-24-2012, 03:47 PM
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Get some these, completely custom dimensions

http://www.gwizpro.com/stands/prodde...?prod=SCStands

Keep the height short, like 12", and select the tilt back option.
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post #12 of 20 Old 05-24-2012, 04:12 PM - Thread Starter
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Quote:
Originally Posted by Jay1 View Post

Get some these, completely custom dimensions

http://www.gwizpro.com/stands/prodde...?prod=SCStands

Keep the height short, like 12", and select the tilt back option.

Jay1! now why didnt i think of that? i am going to really feel bad copying a veteran owned companies ideas but i can just build those not trying to be rude but i never thought about stands like that and they look so simple i dont know why it didnt occur to me to think of that before

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post #13 of 20 Old 05-24-2012, 04:16 PM
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No worries, diy whenever you can
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post #14 of 20 Old 05-24-2012, 06:02 PM
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Quote:
Originally Posted by manuetdeo View Post

or how low is too low?

Quote:
Originally Posted by Drew Eckhardt View Post

Lower than when they're standing normally.

I LOL'ed.
jasonsong likes this.

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post #15 of 20 Old 04-04-2017, 10:56 AM
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Quote:
Originally Posted by Drew Eckhardt View Post
You'll get an unnatural boost in the lower midrange that makes actors and singers sound like they have chest colds and assuming the speakers are horizontal will have other problems in the cross-over regions.
Could this be fixed by adjusting the EQ to reduce the low frequencies and balance things out?

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post #16 of 20 Old 04-04-2017, 11:20 AM
 
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post #17 of 20 Old 04-04-2017, 01:26 PM
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Quote:
Originally Posted by Bill Fitzmaurice View Post
I thought it was good practice to post in existing threads before starting up another thread with the same content? It's not like my question was absurd... just looking for a work around for something that may potentially not have a solution such as simply moving the speakers up.

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post #18 of 20 Old 04-04-2017, 01:40 PM
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If you are placing the speakers VERTICALLY, upright as they are designed to be placed, then remember that the sound from the Tweeter spreads out at about 0.27 x the Distance (0.27 = TAN 15° or ±7.5°). So, if you are 10 feet away, the cone of sound coming from the tweeter is 2.7 feet wide (which is ±1.35ft). As long as you are in that cone of sound, you are fine.

Tweeter are tested at ±15° off axis, and the sound while slightly diminished that is still considered acceptable. So, in this case, the cone of sound from the Tweeter is 0.58 x the Distance between the Tweeter and the listener. Again, it this case, that means the cone of sound has fanned out to 5.8 feet in diameter (±2.9ft) at a distance of 10 feet. (Tan 30° or ±15° = 0.577)

So, you don't really need to be perfectly in line with the Tweeter.

If the difference between the vertical height of the tweeter and the vertical height of your ear is less than (2.7ft/2) 1.35 feet you are fine.

Even if the difference is 2.9 feet you are still doing pretty good.

Though I'm curious, if you were not going to place your speakers vertically ON THE FLOOR, how and where would you place them??????

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Last edited by bluewizard; 04-07-2017 at 02:55 PM.
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post #19 of 20 Old 04-04-2017, 02:15 PM
 
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Quote:
Originally Posted by ungraphic View Post
. just looking for a work around for something that may potentially not have a solution such as simply moving the speakers up.
Sometimes the simple solution is the best one, and that's the case here. Tweeters work best when at ear level, and can be OK if the speaker is tilted up (or down, as the case may be) to put the tweeter on-axis with the LP. Goosing the HF EQ to try to compensate for poor placement is not a good idea.
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post #20 of 20 Old 04-07-2017, 03:08 PM
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Quote:
Originally Posted by Bill Fitzmaurice View Post
Sometimes the simple solution is the best one, and that's the case here. Tweeters work best when at ear level, and can be OK if the speaker is tilted up (or down, as the case may be) to put the tweeter on-axis with the LP. Goosing the HF EQ to try to compensate for poor placement is not a good idea.
I'm not disagreeing with what you are saying, just modifying it a bit. As I illustrated in Post 18, if your ears are within 1 foot (horizontally or vertically) of the tweeter, there is pretty much no change. Though that is a based on an estimated 10 foot listening distance.

Tweeters at ear level is not always the best solution, though, in general your point is right. If we change the context to Toe-In, you can tune your speakers by using varying degrees of Toe-In. For brighter speakers, perhaps facing straight forward is better, for softer less bright speakers, perhaps pointing straight at you is better.

The same can result from the tweeters being higher or lower.

Sitting in my office chair, my ears are about 41" off the floor, that means with little or no change in the sound, the speaker tweeter could be anything from 29" to 53". At 10ft, that puts you within a ±7.5° window in which there will be little or no change in the perception of the Tweeter.

Could the Original Poster tell us SPECIFICALLY what is floorstanding speakers are (brand and model) or could he give us the measurement from the floor to the center of the tweeter so we have some context to respond in?

Again, I'm not saying you are wrong; I'm just saying that there is a ± factor in the Tweeter Head High guideline.

Steve/bluewizard

Last edited by bluewizard; 04-07-2017 at 03:17 PM.
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