4-27
W-3WAY ECO-i SYSTEM Unit Specifi cations
1
2
3
4
5
6
7
8
2. 4-Way Air Discharge Semi-concealed Type (X Type)
MODEL
: XHX1252, XHX1852
SOUND LEVEL :
31 dB(A)
LOW
HIGH
27 dB(A)
29 dB(A)
CONDITION
:
MODEL
: XHX2452
SOUND LEVEL :
34 dB(A)
28 dB(A)
31 dB(A)
CONDITION
:
MODEL
: XHX3652
SOUND LEVEL :
39 dB(A)
33 dB(A)
36 dB(A)
CONDITION
:
NC-20
NC-30
NC-40
NC-50
4000
63
125 250
8000
2000
1000
500
60
50
40
30
20
10
NC-20
NC-30
NC-40
NC-50
4000
63
125 250
8000
2000
1000
500
60
50
40
30
20
10
NC-20
NC-30
NC-40
NC-50
4000
63
125 250
8000
2000
1000
500
60
50
40
30
20
10
Strong
Weak
STRONG
60Hz
Frequency at center of sound pressure band (Hz)
Frequency at center of sound pressure band (Hz)
Overall
Sound pressure le
vel (dB)
(0dB = 0.0002µbar)
Approximate
minimum audible
limit for
continuous noise
4.9 ft directly below unit
o
o
Sound pressure le
vel (dB)
(0dB = 0.0002µbar)
Frequency at center of sound pressure band (Hz)
Overall
Approximate
minimum audible
limit for
continuous noise
LOW
HIGH
STRONG
4.9 ft directly below unit
LOW
HIGH
STRONG
4.9 ft directly below unit
Sound pressure le
vel (dB)
(0dB = 0.0002µbar)
Approximate
minimum audible
limit for
continuous noise
Overall
Approximate
minimum audible
limit for
continuous noise
Approximate
minimum audible
limit for
continuous noise
MODEL
:
:
:
XMHX1252
SOUND LEVEL
32 dB(A)
WEAK
26 dB(A)
CONDITION
NC-20
NC-30
NC-40
NC-50
4000
63
125 250
8000
2000
1000
500
60
50
40
30
20
10
STRONG
Frequency at center of sound pressure band (Hz)
Overall
Sound pressure le
vel (dB)
(0dB = 0.0002µbar)
1.5 m directly below unit
4000
63
125 250
8000
2000
1000
500
Frequency at center of sound pressure band (Hz)
Overall
MODEL
:
:
:
XMHX1852
SOUND LEVEL
41 dB(A)
WEAK
33 dB(A)
CONDITION
STRONG
1.5 m directly below unit
NC-20
NC-30
NC-40
NC-50
60
50
40
30
20
10
Sound pressure le
vel (dB)
(0dB = 0.0002µbar)
2-4. Noise Criterion Curves
TD831139̲Sec4̲p01-32.indd 27
TD831139̲Sec4̲p01-32.indd 27
2008/04/09 19:20:52
2008/04/09 19:20:52
