SKU: V-2015-FR7 FR 7 - 4 Ohm

Visaton Speaker Driver - FR 7 - 4 Ohm Full Range
Art. No. 2015

Visaton FR7 - 4 Ohm Full Range Speaker

Characteristics and Sound Properties
6.5 cm (2.5") full-range speaker with minimal mounting depth and small magnet. Balanced frequency response and high efficiency. Very good high range response. Suitable in machines and other equipment where space is at a premium.

Typical applications:
- Narrow network column speakers
- Control speakers for electronic devices
- Model construction
- Electronic musical instruments

Attributes:
- Moisturised cone
- Metal basket

Technical Specifications

Rated power	5 W
Maximum power	10 W
Nominal impedance Z	4 Ohm
Frequency response	130-20000 Hz
Mean sound pressure level	86 dB (1W/1m)
Opening angle (-6 dB)	180 °/4000 Hz
Excursion limit	± 1 mm
Resonance frequency fs	220 Hz
Height of front pole-plate	2.5 mm
Voice coil diameter	14 mm
Height of winding	2.5 mm
Cutout diameter	61 mm
Net weight	0.092 kg
DC resistance Rdc	3.4 Ohm
Mechanical Q factor Qms	7.05
Electrical Q factor Qes	3.61
Total Q factor Qts	2.39
Equivalent volume Vas	0.4 litres
Effective piston area Sd	22 cm2
Dynamically moved mass Mms	1.0 grams
Force factor Bxl	1.1 Tm
Inductance of the voice coil L	0.1 mH
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)