Setting up Amati Futura's

[metaphacts]

Originally Posted by Venere

Sounds like you are describing toe-in rather than rake. I think of rake as the vertical angle of the speaker in relation to the floor. Toe-in as the horizontal angle of the speaker in relation to the listener. I have always taken toe-in very seriously in my set up since it impacts soundstage and timbre, but to be honest I have never really paid much attention to rake. Experimented a little with minor adjustments to the height of the spikes and could never really hear a difference, certainly not as much difference as what proper toe-in makes (to my ears anyway). May have to revisit that as Sonus faber and other manufacturers clearly takes rake pretty seriously.

Rake is last and is critically important. There's a reason the last step in Masters is called "And then a miracle occurs"

[I-Guardian-I]

Finally a good and clear list of steps to take on speaker placement! Will be trying this in the near future, thanks for sharing!

[W9TR]

Rake is important technically becuase it time-aligns the outputs of the tweeter and midrange drivers. It makes a huge difference in instrument timber and soundstage presentation. I am making small changes in the angle and hearing significant changes in the overall sound of the speakers.

This is a really fun process.

Tom

[redm]

Originally Posted by I-Guardian-I

Finally a good and clear list of steps to take on speaker placement! Will be trying this in the near future, thanks for sharing!

I've read that iteration of the master set and variants of it before. I'm not sure how descriptive or strait forward it really is. I talked to Dave Ellington about the process last year, he also used to work at Sumiko, and I'm even more convinced how non-trivial it is to perform that setup process.

[jr_spyder]

I've followed the tips here in the past and have gotten great results. I kinda wish the positioning wasn't so finicky but it's definitely worth doing. One thing I did to make it easier to make small adjustments was to make some speaker "sleds" as shown in the picture. I tried furniture slides but the ones I got were easily pierced by the speaker spikes. So I made these out of 1/2" ply. I rounded over the bottom edges, and then wrapped in 6 mil plastic. I have to move my right speaker anytime I want to get to the back of my rack (which has been a lot recently) and these sleds make it a snap. Once in the right position I simply tilt the speaker in one direction, and then the other, and the sleds are out. A lot fewer holes in the carpet now too!



John

[metaphacts]

Originally Posted by redm

I've read that iteration of the master set and variants of it before. I'm not sure how descriptive or strait forward it really is. I talked to Dave Ellington about the process last year, he also used to work at Sumiko, and I'm even more convinced how non-trivial it is to perform that setup process.

That's why I said the description above was the best web description I had seen -NOT that it is correct or complete. It's actually neither.

You've had the benefit of David's wisdom. Hearing about it from a teacher is much more valuable than hearing from a student. David's as good as it gets. I taught Masters with David more than with any other partner. Working with him is a blast!

bp

[jcandel]

I went through this process with my New Futuras. I have a very irregular room. Is it possible that my left speaker is 6 inches behind my right one? My ears say yes.... My brain says I f@&&$ up....... Feed back is much appreciated. Joey.

[Sidekick]

Originally Posted by jcandel

I went through this process with my New Futuras. I have a very irregular room. Is it possible that my left speaker is 6 inches behind my right one? My ears say yes.... My brain says I f@&&$ up....... Feed back is much appreciated. Joey.

Room dimensions, surfaces and materials all influence the integration of your speakers in the room. If your room is irregular, have different reflective/absorbing surfaces on either side(s) etc. an ansymmetrical setup might actually be needed.

Trust your ears (and your heart) - never your brain

[metaphacts]

Originally Posted by jcandel

I went through this process with my New Futuras. I have a very irregular room. Is it possible that my left speaker is 6 inches behind my right one? My ears say yes.... My brain says I f@&&$ up....... Feed back is much appreciated. Joey.

Not unusual for speakers to be different distances from the wall behind them to get even bass pressure. Not sure I've ever seen a difference that extreme. If your ears say the pressure is off, pay attention to them.

[dantes0929]

Originally Posted by jcandel

I went through this process with my New Futuras. I have a very irregular room. Is it possible that my left speaker is 6 inches behind my right one? My ears say yes.... My brain says I f@&&$ up....... Feed back is much appreciated. Joey.

6" is a lot, if you have that much pressure loosing, it means the distance in between two speakers has to be much closer than what you have there. Its because of your room or you have very close wall, shelving, or furniture not far from one of your speaker.