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NL4 Connection
2:Connection Diagrams
1:Connector
INPUT
Red: +
+ +
-
Black: -
Red: + Black: -
Technical Specification
System:
Passive full range speaker with PVC
covering
Tweeter:
4x3" paper cone driver
Woofer:
1 x 10 " LF transducer
1
Frequency response(-3dB):
45Hz-18kHz
Frequency response(-10dB):
38Hz-19kHz
2
Sensitivity(1W@1m):
90dB
3
Max. SPL(1m):
113dB/119dB(PEAK)
Power:
100W
(RMS)
200W (MUSIC)
400W (PEAK)
Dispersion（H×V）:
125
110
Rated impedance:
8 Ohms
Crossover point:
2.8kHz
Construction:
Medium density fiberboard + Chipboard
Installation:
2xM8 hanging point
Painting: Black PVC leather covering
Black grille
Connector:
1 x terminal plate
Cabinet dimension:
498 317 292mm
(W D H)
(19.6 12.5 11.5in)
Package dimension:
740 390 630mm
(29.1 15.4 24.8in)
(W D H)
Net weight(pc):
12.4kg(27.3 lb)
Gross weight(pair):
28.0kg(61.6 lb)
Frequency response curve & Impedance curve
1 1
d B S
1 0
9
8
7
6
2 20
+
LF
-
分频器
+
+
HF
-
-
+
+
MF
-
-
4
Frequency response curve
Impedance curve
50
1 00
2 00
System Connection Reference
CHA
BRIDGE IN
INPUT
MODE
LF FILTER
PIN1:
SIGNAL GND
BRIDGE
50HZ
PIN2:
SIGNAL +
PARALLEL
25HZ
PIN3:
SIGNAL -
STEREO
5HZ
CHB
Attention: The impedance of connected speaker must match the impedance of amplifier output.
Attention: Make sure the polarity of speaker and amplifier correctly.
Speaker Testing Method
1. Frequency Response
Use Pink noise to test the speaker in the anechoic chamber,
adjust the level to make the speaker work at its rated impedance
and set the output
power
at 1W, then test the frequency response
1m away from the speaker.
2. Sensitivity
Use full range Pink noise which has been modified using
an EQ
curve to test the
speaker in the anechoic chamber,
increasing the
signal to make the speaker
impedance and set the
power output at 1W, then test
sensitivity 1m away from the speaker.
3. MAX.SPL
Use full range Pink noise which has been modified using
an EQ
curve to test the
speaker in the anechoic chamber ,
i n c r e a s e t h e
s i g n a l t o m a k e t h e s p e a k e r
maximum power output level, then test the SPL1m away
from the speaker.
4. Rated Power
Use Pink noise to the IEC#268-5 standard to test the speaker,
increase the signal for a continuous period of100 hours,
the rated power is the power when the speaker will show
no visible or measurable damage.
5 00
1 K
2K
Hz
Frequency (Hz)
-
!
CAUTION
A
+
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CHA OUTPUT
CLIPLIMITER
GROUND
+
OFF
OFF
FUSE
-
ON
ON
Special design for big power！
Serial no:
+
OUTPUT ASSIGNMENT:
B
CHA: PIN 1+ :
CHA SIGNAL
CHB: PIN 1+ :
CHB SIGNAL
-
PIN 1 - :
CHA GND
PIN 1 - :
CHB GND
POWER
PIN 2+ :
CHB SIGNAL
PIN 2+ :
CABLE
PIN 2 - :
CHB GND
PIN 2 - :
BRIDGE MONO OUTPUT:
CHA : PIN1+ : SIGNAL
PIN2+ :
GND
CHB OUTPUT
work at its rated
the
w o r k a t i t s
50
4 0
30
20
10
0
5K
1 0K
2 0K
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