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Need comments on toe up big bookshelf.

45.64.242.217
Posted on June 22, 2024 at 16:10:45
Tube747
Audiophile

Posts: 420
Joined: May 11, 2004
 I have an 8" 3 ways large bookshelf loudspeaker
. What would happen if toe up the speaker through the use of speaker stand?

How much degree for toe up ha e you need ever tried?

 

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Do you mean tilt., posted on June 22, 2024 at 16:34:08
kkak66
Audiophile

Posts: 651
Location: Florida
Joined: April 25, 2000
 N/T

 

timing aliagnment, posted on June 22, 2024 at 16:44:39
Leo loves music
Audiophile

Posts: 208
Joined: October 14, 2021
 .

 

Why do you want to do that?, posted on June 22, 2024 at 19:36:29
Leo loves music
Audiophile

Posts: 208
Joined: October 14, 2021
 Music will be smoother. But loss a lot of details.

 

There are several reasons why that works and also works against, posted on June 22, 2024 at 23:11:46
Edp
Audiophile

Posts: 4609
Joined: September 23, 1999
 The main reason is ( or should be ) to mitigate and in some cases avoid the large and broad cancellation of the upper midrange when the listening axis is above the tweeter.

Simple example, two way tweeter 3 inch above midbass, if you are one inch above the tweeter at 8 foot, that's about 10 to 12 degrees. This will result in a broad 2 db dip in the 1400 to 2500, and a 3 db dip at crossover point of 2200. Be 2 inches above tweeter axis at 8 feet and those numbers grow to 4 db and 6 db. And that's for not too bad of a speaker, just science putting reality to our creations.

One thing to remember is this broad drop out and deep dips do not Happen to those dramatic levels when you go below the listening axis. Far far ( and far ) better to be 4 inches below tweeter axis than 1 inch above.

So by choosing the right combination of height and tilt you can place the listening axis at or below the tweeter axis.

So the why not get the right height stand, mostly it just looks odd for most to see a golden rule box up on 26 inch stands. They look better nestled near the floor and then necessity plus ingenuity put a tilt so the don't sing nice only to the carpet.

But there are downsides to almost every choice of placement. For the rare few designs that implement a crossover alignment together with a physical placement of drivers to achieve a phase and time alignment, well you may negate some of that design. Most other speakers it adds to the already mixed alignments.

It's one of the easiest and reversible changes one can ( most likely should ) do.

 

RE: There are several reasons why that works and also works against, posted on June 23, 2024 at 04:48:43
Leo loves music
Audiophile

Posts: 208
Joined: October 14, 2021



Crossover can add some delay but not much. Horn is difficult to align.

 

RE: There are several reasons why that works and also works against, posted on June 24, 2024 at 13:48:25
Leo loves music
Audiophile

Posts: 208
Joined: October 14, 2021



Once timing is aligned. It is much better. But this is not practical.

 

RE: There are several reasons why that works and also works against, posted on June 24, 2024 at 20:42:59
Leo loves music
Audiophile

Posts: 208
Joined: October 14, 2021
 When I am sad, I listen to the system. It can feel it with passion.

 

RE: There are several reasons why that works and also works against, posted on June 24, 2024 at 21:05:30
Leo loves music
Audiophile

Posts: 208
Joined: October 14, 2021
 The funny thing is when music played, his dog sat down and listened.

 

CHATGPT, posted on July 8, 2024 at 05:44:25
mbrierley
Audiophile

Posts: 98
Location: Wexford
Joined: December 30, 2021
 I used ChatGPT to figure out the tilt angle from mid centre to my ear at a given distance. Worked brilliantly.

I had also worked it out through listening tests.

Historically, I noticed no loss of detail with small 3-5 degree tilts. Bass gets a little stronger. Actually, everything gets a bit better when you tilt the drivers towards your listening height.

 

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