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11/01/24 at 01:38:58

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Room Size (Read 1306 times)

EdwardT Seasoned Member Posts: 366	Room Size 12/12/23 at 20:43:55 What are your opinions on room size, i.e. ratio of sides to ends and ceiling height? I’m thinking of halving my shop and building a nice listening environment inside the quonset hut…maybe 18x14x9…and give enough space to try some dipole designs.
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The other Lon Senior Member Posts: 97	Re: Room Size Reply #1 - 12/12/23 at 21:05:16 Steve drafted a nice paper on this here: https://www.decware.com/paper36.htm
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EdwardT Seasoned Member Posts: 366	Re: Room Size Reply #2 - 12/13/23 at 13:42:32 Thank you.
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GroovySauce

Seasoned Member

Posts: 864

Re: Room Size
Reply #3 - 12/13/23 at 13:50:15

Those dimensions are not too bad. You can get fantastic sound from a room with those dimensions.

https://amcoustics.com/tools/amroc?l=18&w=14&h=9&so=false&ft=true&r60=0....

9 foot ceilings is a great help in getting a better room response. Modes per third has a nice smooth increase.

List of room modes under 100hz. Excluding oblique.

1 31.26 Hz B0 1-0-0 ax
2 40.19 Hz E1 0-1-0 ax
3 50.92 Hz G1# 1-1-0 tan
4 62.52 Hz B1 0-0-1 ax
5 62.52 Hz B1 2-0-0 ax
6 69.9 Hz C2# 1-0-1 tan
7 74.32 Hz D2 0-1-1 tan
8 74.32 Hz D2 2-1-0 tan
9 80.38 Hz E2 0-2-0 ax
11 86.24 Hz F2 1-2-0 tan
12 88.41 Hz F2 2-0-1 tan
13 93.78 Hz F2# 3-0-0 ax
15 101.83 Hz G2# 0-2-1 tan

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EdwardT Seasoned Member Posts: 366	Re: Room Size Reply #4 - 12/13/23 at 21:37:31 That’s a way cool link, thank you.
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jpv

Seasoned Member

Cause inside
everyone is a heavy
metal kid

Posts: 170

Re: Room Size
Reply #5 - 12/14/23 at 20:11:21

I like the 9 foot height. The problem I see is that the length of 18 is a multiple of the 9 foot height. If you could go higher that would be good. So shorten or lengthen the room if you can go higher.
Having a dimensions that are divisible into another will make the modes harder to tame. My room is 19 x 14 x 8 and it does sound good (lots of treatment).

VPI Scoutmaster, Grado Master3, Odyssey Candela Preamp and Suspiro phono preamp Counterpoint NP100 amp (modded by Altavista Audio), Goldenear Triton One speakers, CD240 CDP, Lots of room treatment. Anti-cable sp cables and IC, Decware IC, ZKit 1, ZDAC.

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