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Visaton FR 10 HM 8 Ohm, 4 Inch, Full Range Speaker

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FR 10 HM · 8 Ω · part 4899 — Product photo

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FR 10 HM · 8 Ω · part 4899 — Product photo Product photo FR 10 HM · 8 Ω · part 4899 — Dimension drawing Dimension drawing FR 10 HM · 8 Ω · part 4899 — Response and impedance Response and impedance FR 10 HM · 8 Ω · part 4899 — Directivity pattern Directivity pattern

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

FR 10 HM · 8 Ω · part 4899 — Product photo

Product photo

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Part number: 4899

A dual-cone speaker for vehicle and motorhome audio.

Nominal size
10 cm / 4 inch
Impedance
8 Ω
Rated power
20 W
Cut-out
94 mm
Sensitivity
86 dB (1 W/1 m)
Resonance
120 Hz
ex VAT
£9.54 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 10 HM is a compact dual-cone driver for music and speech in vehicles and motorhomes. Its European standard basket fits many 10 cm speaker positions, subject to the mounting pattern and rear clearance. This 8 Ω version handles 20 W rated power and has a moisture-resistant cone.

Typical applications

  • Vehicle audio
  • Motorhome audio
Full specifications
FR 10 HM · 8 Ω
Rated power20 W
Maximum power30 W
Nominal impedance8 Ω
Frequency response (−10 dB)95–22000 Hz
Mean sound pressure level86 dB (1 W/1 m)
Opening angle (-6 dB)86°/4000 Hz
Excursion limit±2 mm
Resonance frequency fs120 Hz
Magnetic induction1.1 T
Magnetic flux100 µWb
Height of front pole-plate2 mm
Voice coil diameter14 mm
Height of winding5 mm
Cut-out94 mm
Net weight0.34 kg
D.C. resistance Rdc7.2 Ω
Mechanical Q factor Qms5.89
Electrical Q factor Qes1.91
Total Q factor Qts1.44
Equivalent volume Vas2 l
Effective piston area Sd50 cm²
Dynamically moved mass Mms2.8 g
Force factor Bxl2.9 Tm
Inductance of the voice coil L0.2 mH
Terminals2 x 4.8 x 0.8 mm (+)/2.8 x 0.8 mm (-)
Temperature range–25 to 70 °C
Dimensions and drawings
FR 10 HM · 8 Ω · part 4899 — Dimension drawing

Dimension drawing · Open original image

Installation and cabinet guidance

Allow for a 94 mm panel opening and align the mounting slots before drilling. Leave room behind the basket for the magnet, connectors and any moving window mechanism. Optional grilles: 4642, 4640 and 4744.

Mount on a rigid panel with a continuous seal around the frame to prevent air leaks and rattles. Keep the cone and surround clear of the grille and internal parts.

Use an amplifier suitable for the 8 Ω load and follow the polarity marks. Check blade width and thickness before choosing connectors, insulate the connections and secure the wiring clear of the moving parts.

Use this impedance version’s enclosure parameters when developing a cabinet, and test the response at the intended listening level. Allow for the volume occupied by the driver and keep damping material clear of the cone and terminals.

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