FR 9.15 - 4 Ohm

Visaton Speaker Driver - FR 9.15 - 4 Ohm Full Range
Art. No. 2054

Visaton FR9.15 - 4 Ohm Full Range

Characteristics and Sound Properties
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:-
- Vehicles of all types (road or rail), e.g. mobile homes, trams etc.

Attributes:-
- Moisturised cone
- Metal basket

Technical Specifications

Rated power	15 W
Maximum power	30 W
Nominal impedance Z	4 Ohm
Frequency response	75–16000 Hz
Mean sound pressure level	85 dB (1W/1m)
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
DC 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 litres
Effective piston area Sd	79 cm2
Dynamically moved mass Mms	4.6 grams
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

Driver Dimensions

Loudspeaker Driver Dimensions and Measurements - all dimensions in mm (approx.)

Frequency and Impedance Response

Loudspeaker Frequency and Impedance Response Graph

Directivity Pattern

Loudspeaker Directivity Pattern (on and off axis response)