6
Sensitivity (dB)
20
70
80
90
100
110
120
200
50
12
6
Frequency (Hz)
Impedance (Ohms)
50 100 200 500 2k 5k 10k 20k
1k
100
25
X18Bi
18"Subwoofer
Frequency Response And Impedance Curve
Frequency response curve
Impedance curve
TECHNICAL SPECIFICATION
Speaker Testing Method
1. Frequency response
Use Pink noise to test the speaker in the anechoic room,
adjust the level to make the speaker work at its rated
impedance and the power output is 1W, then test the
frequency response 1m away from the speaker.
2. Sensitivity
Use full range Pink noise which was modified by EQ curve
to test the speaker in the anechoic room, enlarge the signal
to make the speaker work at its rated impedance and the
power output is 1W, then test the sensitivity 1m away from
the speaker.
3. MAX.SPL
Use full range Pink noise which was modified by EQ curve
to test the speaker in the anechoic room, enlarge the signal
to make the speaker work at its instant power output level,
then test the SPL 1m away from the speaker.
4. Rated Power
Use the pink noise according to IEC#268-5 to test the speaker,
enlarge the signal for continuous 100hours, the rated Power
is the power when the speaker will not incur hot damage or
mechanics damage.
1×18 LF"
Technical Sheet
Passive full range wooden
speaker
System:
System components:
36Hz-2kHz
1
Frequency response(-3dB):
97dB
8 Ohms
121dB/127dB(PEAK)
4
500W (RMS)
1000W (MUSIC)
2000W (PEAK )
2
3
Sensitivity(1W@1m):
Max.SPL(1m):
Power:
Rated impedance:
Handle: 4 Wooden handles×
Cabinet coated by Polyurethane
paint;grille is powder coated
Painting:
Cabinet dimension:
(W D H)× ×
Package dimension:
(W D H)× ×
N.W.(pc):
G.W.(pc):
Connector:
NL4×2
50.5kg(111.1 lbs)
54.5kg(119.9 lbs)
750×690×630mm
(29.5×27.2×24.8in)
880×800×775mm
(34.6×31.5×30.5in)
版本 第7页 共10页
文件（图）号
商品劳务号
物品规格
物品类别
物品名称
（图名）
三基音响科技有限公司
英文说 明书
专业音 箱 B
101.05.0009.00009
三基/β3/X18Bi
