Good ol’ honest engineering - the world best cd transport from years ago

[DasguteOhr]

Finding the right place for speakers in an unfamiliar room is relatively easy. Just try this method.
In most living rooms, the seating position (couch) is determined by the furniture.(WAF
You clear the couch away and place your speakers there towards the wall where you want them to be later.
You take a chair and walk step by step towards the wall until you reach the height in the room where it sounds best.
You place the speakers there .the couch back into position and just listen.
All you have to do is adjust the angle and the distance between the speakers a little to the seating position and you're done. It almost always works, I promise.

 

[microstrip]

The subject of proper speaker placement is very complex but if I want introduce you a simple example I can say the simple example is the impedance matching in electronics :

Impedance matching - Wikipedia

en.m.wikipedia.org

When Zl = Zs then the power transfer will be maximum.

When the room is not against the speakers then you will get maximum dynamics, transparency and image

The most bizarre example I ever saw in room acoustics - do you want to add furniture to your room to match the acoustic impedance of the room to the acoustic impedance of the speaker?

BTW, acoustic impedance ( 1 Rayl = 1 kg/m exp 2) is an extremely important concept is speaker and room acoustics, seismology and medical imaging and an usual argument of the people who favour large area speakers with ultra light diaphragms, such as my SoundLabs, horns or the ELS63.

In fact, we can analyse room behaviour in terms of impedance - hard, reflective materials such as concrete and glass have high impedance and reflect most sound energy and soft, absorptive materials such as carpets and curtains) have lower impedance and absorb sound. Surely the impedance depends on the frequency, but helps to explain why rigid walls can be a problem that is not solvable with furniture!

BTW, the acoustic impedance of the room is usually indirectly measured from the RT60 spectrum, that unfortunately can be extremely misleading in small rooms.

 

[Amir]

The most bizarre example I ever saw in room acoustics - do you want to add furniture to your room to match the acoustic impedance of the room to the acoustic impedance of the speaker?

BTW, acoustic impedance ( 1 Rayl = 1 kg/m exp 2) is an extremely important concept is speaker and room acoustics, seismology and medical imaging and an usual argument of the people who favour large area speakers with ultra light diaphragms, such as my SoundLabs, horns or the ELS63.

In fact, we can analyse room behaviour in terms of impedance - hard, reflective materials such as concrete and glass have high impedance and reflect most sound energy and soft, absorptive materials such as carpets and curtains) have lower impedance and absorb sound. Surely the impedance depends on the frequency, but helps to explain why rigid walls can be a problem that is not solvable with furniture!

BTW, the acoustic impedance of the room is usually indirectly measured from the RT60 spectrum, that unfortunately can be extremely misleading in small rooms.

I did not say the impedance matching has any relation to speaker position. It is just a simple example to imagine about the subject.

I do not know how can I explain it to you

 

[microstrip]

I did not say the impedance matching has any relation to speaker position. It is just a simple example to imagine about the subject.

I do not know how can I explain it to you

Oh, I see - some think like this?
I am addressing the physics of sound, reflection and absorption, not subjectivity, sorry.