FR 9.15 - 4 Ohm

Art. No. 2054

9 x 15 cm (4" x 6") full-range driver. Well-balanced frequency response makes this speaker ideal for both voice and music reproduction e.g. extremely well suited to use in vehicles. Minimum depth required.

Typical applications
Straßen- und Schienenfahrzeuge (z.B. Wohnmobile, Straßenbahnen etc.)
Attributes
  • Moisturised cone
  • Metal basket

Technical Data

Rated power
15 W
Maximum power
30 W
Nominal impedance Z
4 Ohm
Frequency response
75–16000 Hz
Mean sound pressure level
85 dB (1 W/1 m)
Opening angle (-6 dB)
147°/4000 Hz hor.180°/4000 Hz ver.
Excursion limit
+/−1.5 mm
Resonance frequency fs
120 Hz
Magnetic induction
0.9 T
Magnetic flux
170 µWb
Height of front pole-plate
3 mm
Voice coil diameter
20 mm
Height of winding
5 mm
Cutout diameter
146 x 87 mm (oval)
Net weight
0.277 kg
D.C. resistance Rdc
3.5 Ohm
Mechanical Q factor Qms
8.90
Electrical Q factor Qes
2.29
Total Q factor Qts
1.82
Equivalent volume Vas
2.9 l
Effective piston area Sd
79 cm²
Dynamically moved mass Mms
4.6 g
Force factor Bxl
2.3 Tm
Inductance of the voice coil L
0.3 mH
Connections
4.8 x 0.8 mm (+)2.8 x 0.8 mm (−)
Temperature range
–25 ... 70 °C
Frequency- and impedance response
Directivity pattern
Directivity pattern