Last Revised: 7/15/2011
ND91-4
ND91-4
3-1/2" Aluminum Cone Full-Range Driver
3-1/2" Aluminum Cone Full-Range Driver
4
4.1
0.74
63.4
3.06
0.44
0.38
5.6
1.13
30.4
12.2
4.6
1.47
4.6
25
81.3
30
65-
17,000
* Low distortion Neo-Balanced
motor structure
* 1" 4-layer underhung voice coil
*
Black anodized aluminum cone
* Xm a x 4.6 mm / 25 mm peak
* Full-range capability
* Great for line arrays
@ 1 kHz
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
180°
120°
60°
0 deg
-60°
-120°
-180°
125102050100 200 500 1kHz 2k 5k 10k 20k
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