NF-1 & NF-1A
NF-1 & NF-1A
4
17
1. SPECIFICATIONS
Enclosure system
2-way bass-reflex system
Drivers
160 mm HP woofer x 1 (low-leakage type)
20 mm Soft-Dome tweeter x 1 (low-leakage type)
Impedance
8
Ω
Frequency Response
50 Hz ~ 40 kHz
Crossover Frequency
10 kHz
Sound Pressure Level
89 dB/W (1 m)
Input (Program)
120 W
Enclosure volume
11 liters
Weight
Approx. 9.1 kg
NF-1
Specifications and physical appearance are subject to change without notice for product improvement.
40000
20000
10000
5000
2000
1000
500
200
100
50
20
80
90
70
60
50
40
30
20
100
10
Hz
dB
10
Second Distortion
Third Distortion
<NF-1 Distortion Characteristic>
30º
60º
40000
20000
10000
5000
2000
1000
500
200
100
50
20
90
100
80
70
60
50
40
30
110
10
Hz
dB
8
16
32
4
<NF-1 Frequency / Impedance Characteristic>
Ω
274 mm
267 mm
340 mm
240 mm
• NF-1 Dimensions
4. CIRCUIT & BLOCK DIAGRAMS
Power Amp & SW PCB
1
2
4
5
6
7
8
9
10
11
1
1
1
3
2
8
4
1
5
7
6
3
1
2
1
1
F1
FUSE
C506 47p CER
R507 10K
U502
LM3886TF
IN+
OUT3
+V
IN-
+38V
+V
NC
GND
MUTE
-V
R506
150
C505
1/50
C509
0.1 PES
R509
10
NC
NC
R505
1K
C508
220p CER
-38V
R508
20K
TO LF
SPEAKER
J502
TO HF
SPEAKER
1
2
3
4
R515
10K
C513
47p CER
1
2
4
5
6
7
8
9
10
11
U510
LM3886TF
IN+
OUT3
+V
IN-
+38V
+V
NC
GND
MUTE
-V
NC
NC
-38V
C517
0.1 PES
R516
20K
C516
220p CER
U501B
BA4560N
C511
0.0022 PES
R512
1K
C512
100/16
R510
10K
R511
10K
C510
0.0039 PES
R504
20K
R503
10K
C503
0.01 CER
U501A
BA4560N
C504
0.01 CER
C502
0.0022 PES
+15V
-15V
C501
0.0022 PES
+15V
-15V
1
2
3
4
5
W501
TO INPUT
R517
10
R513
130
+15V
-38V
C008
100/16
R004
270 1/2W RF
+38V
U001
DTC114ES
R003
470K
Q001
2SD1200F
C002
4700/63
D002
MTZJ15
C006
10/16
C004
1/50
R001
4.7K
C007
10/16
D003
MTZJ15
Q002
2SB889F
-15V
R002
4.7K
C005
1/50
C003
4700/63
-38V
R005
270 1/2W RF
C013
NON
D001
GBU6D
CONN-M-03
C014
NON
J501
1
2
3
1
2
3
T1
TRANSFORMER POWER
W6
100V: GRY
120V: BRN
230V: VIO
S1
SW POWER
W3
W5
W4
C011
0.0047
C012
NON
L1
BEAD 6H
L2
BEAD 6H
J001
AC IN
230V: 1A
100/12V: 3.15A
W1
BRN
BRN
WHT
GND
