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  2. Visaton FR 7 4 Ohm, 2.5 Inch, Full Range Speaker

Visaton FR 7 4 Ohm, 2.5 Inch, Full Range Speaker

FR 7 · 4 Ω · part 2015 — Product photo

Product photo · Enlarge image

FR 7 · 4 Ω · part 2015 — Product photo Product photo FR 7 · 4 Ω · part 2015 — Label and terminals Label and terminals FR 7 · 4 Ω · part 2015 — Dimension drawing Dimension drawing FR 7 · 4 Ω · part 2015 — Response and impedance Response and impedance FR 7 · 4 Ω · part 2015 — Directivity pattern Directivity pattern

Product photographs and manufacturer drawings. Images are not to scale.

FR 7 · 4 Ω · part 2015 — Product photo

Product photo

Open original image
Part number: 2015

A shallow 6.5 cm full-range driver for compact machines, electronic instruments and monitoring audio.

Nominal size
6.5 cm / 2.5 inch
Impedance
4 Ω
Rated power
5 W
Cut-out
61 mm
Sensitivity
86 dB (1 W/1 m)
Resonance
220 Hz
ex VAT
£5.94 inc VAT
Maximum quantity available reached.

Stock and dispatch
Selected products are held in UK stock; other lines are sourced to order. Dispatch timing depends on the product and quantity.

Delivery information. Need it for a specific date? Ask us.

Quantity discounts

Description

The FR 7 uses a small magnet and moisture-resistant cone. Its 5 W rated power and compact basket suit equipment where mounting space is limited.

Typical applications

  • Equipment monitoring
  • Electronic instruments
  • Model projects
  • Narrow speaker columns
Full specifications
FR 7 · 4 Ω
Rated power5 W
Nominal impedance4 Ω
Frequency response (−10 dB)130–20000 Hz
Mean sound pressure level86 dB (1 W/1 m)
Opening angle (-6 dB)180°/4000 Hz
Excursion limit±1 mm
Resonance frequency fs220 Hz
Height of front pole-plate2.5 mm
Voice coil diameter14 mm
Height of winding2.5 mm
Cut-out61 mm
Net weight0.092 kg
D.C. resistance Rdc3.4 Ω
Mechanical Q factor Qms7.05
Electrical Q factor Qes3.61
Total Q factor Qts2.39
Equivalent volume Vas0.4 l
Effective piston area Sd22 cm²
Dynamically moved mass Mms1.0 g
Force factor Bxl1.1 Tm
Inductance of the voice coil L0.1 mH
Terminals2.8 x 0.5 mm (+)/2.8 x 0.5 mm (-)
Temperature range–25 to 70 °C
Dimensions and drawings
FR 7 · 4 Ω · part 2015 — Dimension drawing

Dimension drawing · Open original image

Installation and cabinet guidance

Allow for a 61 mm panel opening, with space behind the speaker for the magnet and terminal connections. Align the fixing holes before drilling. Optional grille: 2312.

Use an amplifier suitable for the 4 Ω load and observe terminal polarity. For a 100 V line system, connect through a suitable line transformer; do not connect the driver directly to the line.

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