Dayton Audio ND25FA-4 1ԠSoft Dome Neodymium Tweeter 4 Ohm User Manual
Nd25fa-4 1" soft dome neodymium tweeter, 1 khz fs, Qms qes qts mms
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Last Revised: 12/4/2013
20
18
16
14
12
10
8
6
4
2
0
Ohms
180°
90°
0
deg
-90°
-180°
2
5
10
20
50
100
200
500
1kHz
2k
5k
10k
20k
ND25FA-4
1" Soft Dome Neodymium Tweeter
4
3.2
0.48
1350
3.87
2.61
1.56
7.5
25
90
20
2,500-20,000
Impedance (
Ω
)
Re (
Ω
)
Le (
mH
) @ 1 kHz
Fs (
Hz
)
Qms
Qes
Qts
Mms (
g
)
Cms (
mm/N
)
Sd (
cm
2
)
Vd (
cm
3
)
BL (
Tm
)
V
as
(
liters
)
X
max
(
mm
)
VC Diameter (
mm
)
SPL (
)
RMS Power Handling (
W
)
Usable Frequency Range (
Hz
)
OmniMic
500
1k
2k
5k
10k
20k
Frequency Response -freq [Hz]
[d
BSP
L]
105
100
95
90
85
80
75
70
65
60
55
• 1" treated silk dome diaphragm
• Round faceplate design for simple mounting
• High-strength neodymium motor
• Copper pole sleeve reduces distortion
• Rear-mounted heatsink and ferrofluid cooling
• Extremely smooth and detailed treble response
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