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NEW Visaton FR87-4 3.4" Full-Range Speaker 4 Ohm

VisatonPart # 292-7837
Model: FR 87

The Visaton FR87-4 is an 8.7 cm (3.4") full-range speaker designed for balanced frequency response and high efficiency, making it suitable for speech and music reproduction in electronic devices and vehicles.

Key Features

  • Frequency response from 100 Hz to 20,000 Hz for comprehensive sound coverage
  • Mean sound pressure level of 85 dB (1 W/1 m) ensuring efficient audio output
  • Resonance frequency at 137 Hz enhancing midrange clarity
  • Rated power handling of 15 W (maximum 20 W) suitable for standard audio applications
  • Moisture-resistant membrane for durability in various environments
  • Metal basket providing structural stability
  • For a quote on a large qty order, please press "Request Large Qty Quote"
NEW $11.24
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Overview

Visaton FR87-4 3.4" Full-Range Speaker 4 Ohm

The FR87-4's combination of balanced sound reproduction, high efficiency, and compact size makes it an excellent choice for monitoring speakers in electronic devices, vehicles, and electronic musical instruments.

Technical Data

  • Rated power: 15 W 
  • Maximum power: 20 W 
  • Nominal impedance Z: 4 Ohm 
  • Frequency response: 100–20000 Hz 
  • Mean sound pressure level: 85 dB (1 W/1 m) 
  • Opening angle (-6 dB): 143°/4000 Hz 
  • Excursion limit: ±2 mm 
  • Resonance frequency fs: 137 Hz 
  • Height of front pole-plate: 3 mm 
  • Voice coil diameter: 15 mm 
  • Height of winding: 4.3 mm 
  • Cutout diameter: 80 mm 
  • Net weight: 0.21 kg 
  • D.C. resistance Rdc: 3.5 Ohm 
  • Mechanical Q factor Qms: 6.4 
  • Electrical Q factor Qes: 1.56 
  • Total Q factor Qts: 1.25 
  • Equivalent volume Vas: 1.3 l 
  • Effective piston area Sd: 37 cm² 
  • Dynamically moved mass Mms: 2 g 
  • Force factor Bxl: 2.1 Tm 
  • Inductance of the voice coil L: 0.2 mH 
  • Connections: 4.8 x 0.8 mm (+)/2.8 x 0.8 mm (-) 
  • Temperature range: –25 - 70 °C

Product Details

BrandVisaton
ModelFR 87
Part Number292-7837
Unit of MeasureEach
Weight0.46

Product Specifications

Nominal Diameter3-4/10"
Power Handling (RMS)15 Watts
Power Handling (MAX)20 Watts
Impedance4Ω
Frequency Response100 to 20000Hz
Sensitivity85dB 2.83V/1m
Voice Coil Diameter0.59"

Thiele-Small Parameters

Resonant Frequency (Fs)137Hz
DC Resistance (Re)3.5Ω
Voice Coil Inductance (Le)0.2mH
Mechanical Q (Qms)6.4
Electromagnetic Q (Qes)1.56
Total Q (Qts)1.25
Compliance Equivalent Volume (Vas)0.046ft³
BL Product (BL)2.1T·m
Diaphragm Mass Inc. Airload (Mms)2g
Maximum Linear Excursion (Xmax)2mm
Surface Area of Cone (Sd)37cm²

Mounting Information

# Mounting Holes4

Specifications

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Manuals & Resources

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WARNING: Cancer and Reproductive Harm

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