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Speaker Stands, some questions

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peterb View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote peterb Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2019 at 7:09pm
I decided on an experiment! I brought in the dining chairs and stood the speakers on them.
The result? The overall sound was same/worse and not better!
Not very scientific but I think probably a fair indication.

All this started because I accidentally found the sound was fuller in the low frequencies when I stood behind and to the left or right of my usual seating position.

My next step is going to move all the nearby furniture and walk around the space to see what my ears tell me.
In an idle moment I thought about the wavelength of the lower frequencies and was there enough space for the left and right channels to synchronise. I know sound is not coherent like laser light, but there must be sound re-enforcement for wavelength dimensions. For 40Hz that is more than 8m!
Peter
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Dual 505-1, Cyrus CD T, DIY 80W MosFet amp and PreAmp, 2xKEF 103.2,
Hood/Hart 30W MosFet Integrated amp.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2019 at 7:28pm
This might help you understand the reason for the fuller low frequencies...


Be prepared to input your room dimensions.
Not simple enough for Google-Bot to understand...
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peterb View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote peterb Quote  Post ReplyReply Direct Link To This Post Posted: 01 Feb 2019 at 2:43pm
Interesting program which visualises the frequency modes in a simple rectangular box, your listening room. For my room dimensions it spookily showed a 40Hz node just where I had noticed the fuller bass!

It seems the answer for my circumstances is to change my seating position, something fairly easy to test.
Peter
---------------------------------------
Dual 505-1, Cyrus CD T, DIY 80W MosFet amp and PreAmp, 2xKEF 103.2,
Hood/Hart 30W MosFet Integrated amp.
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