Placement tips for Synergistic Research HTFs


I just bought 15 HTFs and will also be making about a dozen of Ozzie's homemade models.  While I will re-fresh myself with SR's placement tips, and I get that I will have to do some experimenting to tailor the HFT effect to MY listening room; are there any "Advanced HFT Placement Tips" some of you would like to share with us?  Something that might be overlooked by many of us?  Or maybe, just a good rule-of-thumb tip for someone just starting to use these?
The tips could be tips for bring out more highs, solidifying the bass response, placement hi vs low, in front of vs behind speakers, on side walls, at reflection points, behind the listener, on the ceiling above the equipment or above the listener, on the equipment.
Any ah-ha that you would like to share?  I would also be very interested in hearing from people using Magnapans.

toolbox149

#sgordon1

Thank you for your kind advise.

I started following the placement guide on the Synergistic Research page. As my speakers are standing on the long wall, 180 cm (5,9 feet) away from the side walls, I found that placing the 2x2 HFT´s 55 cm (1,8 feet) to the outer front wall (one a ear height and one 2 feet above) locked the stage centre better than having them in the front wall corners. - Any advise on this? 

"Resist the temptation to add too many units." - How many is too many?

Right now I have:

  • Front wall middle between the speakers 3 HFT´s - one foot above the floor, one at ear height and one one foot below ceiling.
  • Front wall 2x2 HFT´s 1,8 feet outside of the speakers
  • On the speakers 5 HFT´s (rear, sides, top and bottom front)
  • Above the middle of speakers each one
  • Side walls none
  • Back wall 4 HFT´s (middle at ear height and 1 one foot below ceiling) + 2x1 mid room height and 1,6 feet from room corners
  • Ceiling - 1 right in the middle of the room

Makes all together 19 HFT´s. - Is that too many according to your experience?

"Have an open mind about modifying speaker placement and listening position (including the height of your seating position.)" - I spent quite some time the last years optimizing speaker position (toe-in and rake angle), both using room acoustic apps and my ears, to my listening position. I must say I was very pleased with the sound, but couldn´t resist trying the HFT´s to possible achieve a wider sweet spot.

I am quite limited when it comes to room treatment as my system is installed in my living room.

Further experience is highly appreciated. Thank you.

Rino.

Another question concerning HFT´s:

Does it make sense to install a crystal in the HFT´s?

I did read some comments on the forum on this topic, but couldn´t find an unambiguous answer.

If yes, please share your experiences.

Thank you.

With the help of all of your 230+ tweeds  🙈 and lots of listening, I have reached a very good result.

I am only using DIY brass "Ozinators" (no SR HFT´s).

As a last step I am thinking of inserting a crystal into the "Ozinators". Has any of you made experience with adding crystals to your "Ozinators"?

If yes, did hear any audible difference?   

I have had over 24 HFT's.  The only ones I have left are the ones on the ceiling and the only reason I still have those is I can't reach them.  Save your money.