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Post by MartinT on Nov 13, 2016 15:14:28 GMT
Speaker positioning versus room dimensions and room quality (use the clap test in the centre of the room). The room width is that which the speakers are positioned across. Compilation of posts submitted. | Member | Room Width | Room Length | Speaker Distance | Speaker-to-Listener | Toe-in
| Speakers
| Room Quality | | MartinT | 6.2m | 5.4m | 3.2m | 3.2m | Yes
| Usher Be-20
| Quite dead | jandl100
| 6.0m
| 3.8m
| 3.0m
| 2.75m
| Yes
| MBL 116F
| Fairly dead
| ChrisB
| 5.5m
| 4.6m
| 2.7m
| 2.3m
| Yes
| Mirage M-3si
| Fairly dead
| Sovereign
| 2.6m
| 6.2m
| 1.7m
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| Open Baffles
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| julesd68
| 3.5m
| 6.0m
| 2.35m
| 2.7m
| Minuscule
| Tannoy Chatsworth
| Fairly dead
| steveeb
| 3.5m
| 6.75m
| 2.7m
| 5.25m
| Yes
| Frugel3
| Fairly live
| kettlechips
| 3.3m
| 4.7m
| 1.8m
| 3.4m
| Yes
| B&W P6
| Fairly dead
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Post by MartinT on Nov 13, 2016 15:16:50 GMT
Well, I surprised myself when measuring. I had thought the speakers were wider apart, but it turns out they are exactly equilateral with my listening position. Just happens that I laid it out that way. The room quality with the clap test is pretty dead with no discernible echo and only a tiny trace of flutter echo.
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Post by MikeMusic on Nov 13, 2016 15:25:05 GMT
Isn't Room Quality subjective ?
I think mine is average, could be horribly wrong
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Post by jandl100 on Nov 13, 2016 16:53:16 GMT
Speaker positioning versus room dimensions and room quality (use the clap test in the centre of the room). The room width is that which the speakers are positioned across. Compilation of posts submitted. | Member | Room Width | Room Length | Speaker Distance | Speaker-to-Listener | Toe-in
| Speakers
| Room Quality | | MartinT | 6.2m | 5.4m | 3.2m | 3.2m | Yes
| Usher Be-20
| Very dead
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My measurements ... 6.0 3.8 3.0 2.75 Yes MBL 116F Fairly dead. If you'd care to include those in your table. I assume Speaker Distance is distance between the speakers. That tends to vary a bit, depending on mood.  |
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Post by MartinT on Nov 13, 2016 16:56:39 GMT
Isn't Room Quality subjective ? I think mine is average, could be horribly wrong Yes, of course. What about your measurements? I seem to remember you're listening closer than you did with the Isobariks? |
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Post by ChrisB on Nov 13, 2016 17:01:46 GMT
Distance between speakers?
.....centre of tweeter....centre of cabinet....inside edges .....outside edges....????
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Post by MartinT on Nov 13, 2016 17:01:59 GMT
My measurements ... 6.0 3.8 3.0 2.75 Yes MBL 116F Fairly dead. If you'd care to include those in your table. I assume Speaker Distance is distance between the speakers. That tends to vary a bit, depending on mood. Thanks, Jerry. Yes, that's right. |
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Post by MartinT on Nov 13, 2016 17:02:27 GMT
Distance between speakers? .....centre of tweeter....centre of cabinet....inside edges .....outside edges....  ? I used distance between centre-fronts. |
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Post by Chris on Nov 13, 2016 19:21:54 GMT
Yip,mine are both in here. No idea of space between them(maybe 10feet) and they're toed n a bit towards the settee.
Pretty lucky to be able to have them in the living room what with all her stuff...
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Post by MartinT on Nov 13, 2016 19:28:45 GMT
Can you give me the rest of the measurements, Chris, and I'll put them in?
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Post by Chris on Nov 13, 2016 19:31:40 GMT
Emmm,no. Too much hassle,Sorry!
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Post by ChrisB on Nov 13, 2016 20:01:49 GMT
Room Width 5.5
Room Length 4.6 at most (for 1/3 of the room width)
Speaker Distance 2.7
Speaker-to-Listener 2.3
Toe-in Yes
Speakers Mirage M-3si
Room Quality Fairly dead
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Post by MartinT on Nov 13, 2016 22:23:59 GMT
Thanks, Chris. This is interesting: you have the speakers placed wider than equilateral; is this due to the imaging properties of your speakers? Perhaps they beam less than classic designs.
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Post by ChrisB on Nov 13, 2016 22:30:49 GMT
Unconventional speakers : unconventional approach.
They're bipolar, so they use the in-phase rear output to the advantage of the soundstage. The thing they require most is freedom from the influence of the side walls, so in this orientation and in this room, I am able to do that and still have them far apart. The toe-in effectively increases that distance to the side walls.
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Post by ChrisB on Nov 13, 2016 23:13:32 GMT
Jerry's speakers also have in-phase output from a less directional source and he also sits a little closer than their distance apart, I see.
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Post by Sovereign on Nov 13, 2016 23:47:36 GMT
Distance between speakers? .....centre of tweeter....centre of cabinet....inside edges .....outside edges.... ? This is a good point, especially when some on this forum call my speakers 'barn doors'  |
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Post by ChrisB on Nov 14, 2016 0:02:25 GMT
Well, yes. The differences between those four dimensions could be significant in some designs. Offset tweeters on a wide baffle like mine are, compared to some modern pencil thin design, for example.
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Post by jandl100 on Nov 14, 2016 6:29:47 GMT
Jerry's speakers also have in-phase output from a less directional source and he also sits a little closer than their distance apart, I see. Yup, and no lack of centre fill, on the contrary it is very focussed right across the soundstage - perhaps counter-intuitively, less speaker directionality seems to give you solider imaging. |
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Post by Sovereign on Nov 14, 2016 16:11:53 GMT
My room dimensions are a little unusual. The most problematic of my room dimensions is its narrow width at only 2.6m. The length of the room is 6.2m and the speakers are about 1.7 m apart. Another really useful dimension to appreciate (although you can probably work this out with the keen mathematical eye) is the distance the drivers are away from the side walls and in my case it's about 40 cm .
However I do find that even in this odd room that I can get an incredible sound from my hi-fi, although I would love to have a room that is much wider .
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Nov 14, 2016 19:55:09 GMT
You lot would cry if you saw how i have my speakers. I will purposely do everything against what is seen to be de rigueur in the Hi-Fi world.  |
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