Electra LEX 25 DCI Service Manual page 39

SOUND LEVEL CHARACTERISTICS
DCI 50 Cooling
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
DCI 60 Cooling
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
BAND CENTER FREQUENCIES, Hz
6-4
NC-70
NC-60
NC-50
NC-40
NC-30
APPROXIMATE
THRESHOLD OF
HEARING FOR
NC-20
CONTINUOUS
NOISE
NC-70
NC-60
NC-50
NC-40
NC-30
APPROXIMATE
THRESHOLD OF
HEARING FOR
NC-20
CONTINUOUS
NOISE
CONTENTS
DCI 50 Heating
BAND CENTER FREQUENCIES, Hz
DCI 60 Heating
BAND CENTER FREQUENCIES, Hz
SM LEXDCI 1-E.1 GB
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20