None
46
54
51
47
55
64
3.5"M = 3.5" metal studs, 24" o.c.
45
© Copyright 2002, Auralex Acoustics, Inc.
54
61
54
20 27
11 2x4W 2 layers 1/2" GB, both sides
57
60
RC-1, one side
53
RC-1, one side
44
39
63
45
Resilient Channel
45
42
59
Source
3" Mineral Fiber
43 USG
RC-1, one side
None
38
3" Mineral Fiber
USG
62
60
49
14 3.5"M 2 layers 1/2" GB, both sides
61
3 2x4W 1/2" GB, both sides
53
4 2x4W 5/8" GB, both sides
48
26
48
55 N/A
52
57
17
37
60
38
16
59 N/A
47
31
Insulation
47
27
64
35
27
Sources:
31
59
56
54
48
52
USG = United States Gypsum Company Literature
18
59
50
38
65
45
43
3" Mineral Fiber
51
48
59
47
31
63
33
28
64
40
51
59
52
30
52
35
42
STC MTC
2x4W = 2"x4" wood studs, 16" o.c.
56
None
29
48
61
33
USG
61
38
49
RC-1, one side
48
59
29
36
37
57
39
None
53
45
61
53
None
44
56
52
49
53
43
10 2x4W 2 layers 1/2" GB, one side; 1/2" GB other side
54
60
60
50
34
RC-1, one side
31
Resilient Channel Acoustical Performance Comparison Table
42
44
6 3.5"M 2 layers 5/8" GB, both sides
37
41
56
52
60
60
55
31
63
41
RAL = Riverbank Acoustical Laboratories
28 USG
35
25
25
35
54
55
NRCC
61
3" Mineral Fiber
57
None
63
RC-1, one side
RC-1, one side
48
47
3" Mineral Fiber
MTC = Music/Mechanical Transmission Class
15
37
48
29
51
34
RAL
17
STC = Sound Transmission Class
55
42
8 3.5"M 2 layers 5/8" GB, both sides
Wall Board
52
None
53
21
40
57 USG
47
5 2x4W 5/8" GB, both sides
58
41
31 USG
57
43
55
37
40
64
19
57
58
26
45
60
46
40
31
32 USG
40
38
52
57
53
56
46
35
52
19
None
1 2x4W 1/2" GB, both sides
RAL
59
60
43 USG
36
47
17
9 3.5"M 2 layers 5/8" GB, both sides
33
42
58
61
49 USG
20
52
33
26
55
62
33
12 2x4W 2 layers 1/2" GB, both sides
65
38
24
3" Mineral Fiber
33
54
66
62
60 N/A
55
40
None
None
66
37 N/A
3" Mineral Fiber
33
17
None
46
36
52
39 USG
49
38
54
68
44
1/3 Octave Band Center Frequency
62
62
None
58
42
38
43
18
43
13 3.5"M 2 layers 1/2" GB, both sides
38
43 USG
33
Studs
63
18 14 21
34
59
65
53
Notes:
50 63 80 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000
55
5/8" Mineral Fiber
50
62
52
NRCC = National Research Council Canada
47
50
56
30
RC-1, one side
59
56
20
7 3.5"M 2 layers 5/8" GB, both sides
52
59
56
34
45
56
48
61
64
52 N/A
2 2x4W 1/2" GB, both sides
36
57
[Pag.1]
Esta version es la html del arhivo pdf RC_Comparison_Table, genearada por domotica.name desde www.auralex.com
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