
Sound Data
27
Sound Power
Duct Discharge Sound Power Level: Test with 5ft length discharge duct, terminated flush with internal wall of
reverberation room.
Ext. Static Overall
(mmAq) 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz A (dBA)
MCC 010C/CR 5 High 57 54 52 52 51 46 44 57
4 Medium 54 51 50 49 48 43 39 54
3 Low 51 48 47 46 44 39 35 51
MCC 015C/CR 5 High 60 58 57 56 54 48 44 61
4 Medium 56 55 54 53 50 44 40 58
3 Low 52 50 49 48 44 37 34 52
MCC 020C/CR 6.5 High 63 62 61 61 59 55 51 65
6 Medium 61 61 59 60 58 53 49 64
3.5 Low 57 56 56 56 53 48 44 60
MCC 025C/CR 5.5 High 63 52 61 62 59 56 53 66
4 Medium 61 60 59 60 57 53 50 64
3 Low 58 57 56 57 54 49 47 61
MCC 028C/CR 10 Super High 62 65 61 63 60 57 56 67
8 High5961586157545264
7 Medium 56 57 55 57 54 50 48 61
6 Low 52 53 51 53 50 45 41 57
MCC 030C/CR 21 Super High 68 69 71 72 69 66 65 76
17 High 65 66 68 69 65 63 60 73
13 Medium 61 62 64 65 61 58 55 69
9 Low 56 58 60 61 57 53 49 64
MCC 038C/CR 14 Super High 74 75 74 75 72 70 69 80
12 High 70 70 71 72 68 66 64 76
11 Medium 67 67 68 70 65 62 60 73
9 Low 65 64 65 66 61 58 56 70
MCC 040C/CR 21 Super High 69 71 72 74 71 68 67 78
18 High 65 68 70 72 68 66 64 76
13 Medium 65 65 67 68 64 62 59 72
9.5 Low 59 61 63 64 60 57 54 68
MCC 050C/CR 18 Super High 70 71 73 74 72 69 67 78
16 High 67 69 71 72 69 66 64 76
14 Medium 66 66 69 69 66 63 61 73
11 Low 6364666762605770
MCC 060C/CR 18 Super High 70 71 73 75 73 70 68 79
16 High 69 70 72 74 71 69 68 78
14 Medium 69 68 70 71 67 65 63 75
10 Low 6465676763615971
Model Speed
1/1 Octave A-weighted Sound Power (dB), ref 1pW
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