Laser measurement for speaker position


https://www.amazon.com/gp/product/B06XNV5WTY/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

This $22 product is a boon for speaker setup!

"Aim" a red dot on speaker, and press measure button.

Measurement accuracy to 1/16 of an inch.

Perfect for "hard to align" Magnepan's.

Set "tweeter to head" distance, the same for left and right speakers.

Set toe-in identical, for left and right speaker. 
don_c55

Showing 2 responses by millercarbon

wolf_garcia writes:
 slight differences in distance have absolutely zero, and I mean zero, effect on the soundstage or anything else..again, it's best to ignore those obsessed with false absolutes and silliness

I had a friend who talked like this. One time when we were having a party he thought it would be funny to prove just how silly it is with a little practical joke. So when no one was watching he gave the chair a little nudge. Not much. You'd never notice. I sure didn't. 

Not with my eyes, anyway.

But we were playing music for people and the next one, she wanted to hear this MoFi which I know to be recorded at a different level, and so not wanting to blast her out of the chair or be too low volume either, I decided to sit and listen for a second just to check the volume.

Immediately I noticed the balance was off. Then I noticed the center image was diffuse. Then I noticed the whole sound stage was off, with some sounds seeming to come from the speakers, instead of floating independent as they should. I double-checked balance, nope that was fine. Well then either someone bumped the chair, or one or both speakers.

So it took me all of about 10 seconds, if that, to figure out what had happened. And another 30 seconds to fix. At which point I look and see Ron standing in the doorway, and I only wish I had taken a picture so you could see the look on his face.

Because at that moment Ron knew for a certainty that I know what I'm talking about and you are, er I mean he was full of it.
The laser level is a practical, useful, and time-saving approach especially if you are also planning, intending, and expecting to have really good imaging, soundstaging, and palpability.

Sorry, don't know why that happened. Something got into me there.

Even a very slightly different distance to each speaker diminishes imaging.

In addition to measuring, calibrating, and... sorry, SORRY! a level is great for making sure the speakers are, uh, level. Or, if you prefer, at the same angle. 

In other words don't just measure the line of sight distance, and toe, but also the tilt front to back and side to side. It makes a difference, and floors cannot be trusted to be level!