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what's your monitor speaker width ? Studio Monitors
Old 1 week ago
  #1
Lives for gear
what's your monitor speaker width ?

I happened across this article in Tape Op, recommending that nearfield speakers be 67.5" apart and 4 foot to the ear (the equilateral triangle idea)....and again 67.5"to the 'focal point' behind the head.

I just measured mine: 37" wide and 47" from each tweeter to the ear....so not strictly equilateral but still a big departure from 67.5", however you cut it. At least my tweeter to ear distance is close to his recommended 48" (4 foot)....

I can appreciate the notion of the focal point being 18" behind the head, and that monitor height should mirror the floor to ears height, and the 30 degree toe-out for each speaker, but the width still bothers me ....

Does 67.5" seem too wide to you....and if you're using something close to that, how do the phantom-centre images play out in your setting: solid, diffuse, hole in the middle ?

Here's the source article: http://www.carltatzdesign.com/acoust...g-ensemble.pdf

Here's the axial mode calculator (example), as mentioned in above article:http://www.carltatzdesign.com/acoust...lc-example.pdf

Here's the tool itself: http://www.carltatzdesign.com/acoust...-mode-calc.xls
Old 1 week ago
  #2
Gear Addict
 

Quote:
Originally Posted by studer58 View Post
I happened across this article in Tape Op, recommending that nearfield speakers be 67.5" apart and 4 foot to the ear (the equilateral triangle idea)....and again 67.5"to the 'focal point' behind the head.

I just measured mine: 37" wide and 47" from each tweeter to the ear....so not strictly equilateral but still a big departure from 67.5", however you cut it. At least my tweeter to ear distance is close to his recommended 48" (4 foot)....

I can appreciate the notion of the focal point being 18" behind the head, and that monitor height should mirror the floor to ears height, and the 30 degree toe-out for each speaker, but the width still bothers me ....

Does 67.5" seem too wide to you....and if you're using something close to that, how do the phantom-centre images play out in your setting: solid, diffuse, hole in the middle ?

Here's the source article: http://www.carltatzdesign.com/acoust...g-ensemble.pdf

Here's the axial mode calculator (example), as mentioned in above article:http://www.carltatzdesign.com/acoust...lc-example.pdf

Here's the tool itself: http://www.carltatzdesign.com/acoust...-mode-calc.xls
So your config would tend to give a 'false' impression of a solid center? You might have a hole in the middle because of monitoring much too far back?
Old 1 week ago
  #3
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hbphotoav's Avatar
 

Tannoy System 800a over the edit desk (entire driver array clear of 24" extended monitors, tipped down slightly to align with ears height while seated), equilateral at 65", in a 1000ft2 room with a 16' pitched ceiling (12' walls) covered with painted paper side of 6" thermal insulation between joists (i.e., no installed ceiling). Tannoy System 800 sub is centered under the desk on the floor, in line with the 800a pair. It's 24' from the chair to the far wall, and 8' to side walls. Walls are standard painted drywall, well-insulated (it's a separate building, with full HVAC, from the house) with lots of irregular shelving eliminating large, flat surfaces. Second set of nearfields is HHB Circle 5, set just outside the Tannoys, just to get a different perspective (more "hifi", less clinically accurate). No sub. Both are helpful.
Old 1 week ago
  #4
Gear Addict
 

If you go by the recommendations of John Sayers (whom, I greatly admire and consider myself a follower of his studio design philosophy), your listening position should be between 35% and 38% of the way back in the room, measured from the hard walls. And he recommends a speaker angle of 60 degrees to the listening position (i.e. each speaker toed in by 30 degrees). So, depending on your room width and length, that kind of determines the spacing of the monitors.

In my studio design mock-ups, I'm usually somewhere about 5 to 6 feet between the speakers. But that's in an ideal, RFZ design concept. I'm about to buy a recording truck which I'm sure would make John cringe when looking at the acoustics and geometry.
Old 1 week ago
  #5
Lives for gear
 

an equilateral triangle is almost universally recommended, speakers very close to the front wall mostly too, the 38% rule is of less significance (see also various threads here on gz).

what often gets a bit neglected (in studios but is a huge issue in live sound) is that one should have an eye on low cut filters (or crossover frequency between main speakers and sub), also in relation to the room geometry: you get maximum phase cancellation at half the wavelength - and also watch for the distance from speakers to the ceiling plus side walls if you work in a rectangular room...

i strongly recommend using external dsp regardless of speaker system, room design etc.
Old 1 week ago
  #6
Gear Nut
 
brhoward's Avatar
 

Perhaps it may go without saying to many people, but I would also recommend treating your listening room. Early reflections can cause equal problems with imaging as monitor spacing and distance.

For the DIY in you, I'd suggest listening to this podcast on some basics of room treatment: Simple Ideas to Improve Acoustics in Recording Studios and Concert Halls

edit: sorry, I realize this is derailing the topic slightly

Last edited by brhoward; 1 week ago at 04:10 PM..
Old 5 days ago
  #7
Lives for gear
One good thing about the 67.5" speaker spacing....it makes the placement of 2 side by side reasonably sized LCD monitor screens quite feasible ....yay !

Maybe that's the primary determinant of the spacing: to get sufficient screen acreage between the speakers ?

Now,a further question: do you recess your LCD screens some distance behind the front-line of the speakers, or maybe angle them inwards, to avoid cancellation/interference reflections off the screens' surfaces ?
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