20
Sound Data
Model Speed
1/1 Octave Sound Power Level (dB, reference 1pW)
Overall
A (dBA)
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCK020EW
High 53 54 52 45 35 31 19 52
Med
50 51 48 39 29 23 17 47
Low 46 45 42 32 22 14 17 41
MCK025EW
High 58 58 55 48 39 37 25 55
Med
53 53 51 43 33 29 18 51
Low 49 48 45 36 28 21 17 45
*MCK030EW
High 59 61 56 51 43 44 31 58
Med
54 55 52 46 38 36 23 53
Low 50 50 47 40 32 26 17 47
*MCK040EW
High 60 60 58 54 45 45 33 59
Med
57 57 56 50 41 40 26 56
Low 53 53 51 44 35 32 19 51
*MCK050EW
High 64 66 61 55 48 48 37 62
Med
59 60 57 52 44 44 32 58
Low 56 56 54 48 40 38 25 55
Measured In Reverberation Chamber
Model Speed
1/1 Octave Sound Power Level (dB, reference 1pW)
Overall
A (dBA)
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCM020DW
High 58 62 58 56 52 47 39 61
Med
56 60 57 54 50 44 35 59
Low 52 55 51 48 43 34 28 53
MCM025DW
High 64 68 64 63 57 54 47 67
Med
63 67 63 62 56 53 46 66
Low 61 64 61 60 53 49 41 63
MCM030DW
High 62 65 62 60 54 46 38 64
Med
61 64 61 59 53 456 37 63
Low 58 62 59 57 51 42 34 61
MCM040DW
High 67 70 64 63 59 50 44 67
Med
64 68 63 62 58 49 42 66
Low 62 67 62 61 56 48 41 65
MCM050DW
High 67 70 64 63 59 50 44 67
Med
64 68 63 62 58 49 42 66
Low 62 67 62 61 56 48 41 65
Measured In Reverberation Chamber
Model Speed
1/1 Octave Sound Power Level (dB, reference 1pW)
Overall
A (dBA)
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
MCM15EW
High 26 37 45 44 44 37 30 50
Med
20 31 40 37 37 28 19 43
Low 18 29 37 34 34 24 14 41
MCM20EW
High N/A N/A N/A N/A N/A N/A N/A 53
Med
N/A N/A N/A N/A N/A N/A N/A 51
Low N/A N/A N/A N/A N/A N/A N/A 49
MCM25EW
High 31 42 50 50 51 44 38 56
Med
28 37 46 46 46 39 32 51
Low 22 32 40 38 38 29 20 44
Measured In Reverberation Chamber