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NEW Beyma 4FR40 4" Full-Range Loudspeaker 8 Ohm

BeymaPart # 253-092
Model: 4FR40
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The Beyma 4FR40 is a 4" full-range compact ferrite loudspeaker designed for applications requiring extended frequency response and low distortion. Its robust construction and optimized design make it suitable for beam-steering applications (such as columns), portable arrays, and other compact audio systems.

Key Features

  • Extensive frequency range from 100 Hz to 20 kHz​
  • Paper cone and Santoprene surround for enhanced durability​
  • Pressed steel basket provides structural integrity​
  • Ceramic magnet enhances magnetic flux for improved efficiency​
  • Ideal form beam-steering application (columns), portable array and compact applications
NEW $30.00
MSRP: $40.00
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Overview

Beyma 4FR40 4" Full-Range Loudspeaker 8 Ohm

4FR40 4" Full-Range Loudspeaker 8 Ohm

The 4FR40's 40 W AES power handling and 87 dB sensitivity enable it to deliver clear and dynamic sound output, making it suitable for various audio applications. Its paper cone and Santoprene surround offer enhanced durability and resistance to environmental factors, ensuring consistent performance over time. The pressed steel basket adds structural integrity, maintaining the speaker's shape and performance under stress. The ceramic magnet enhances magnetic flux, contributing to improved efficiency and sound quality. Ideal for beam-steering applications, portable arrays, and compact audio systems, this full-range transducer delivers high-quality sound in a versatile and durable package.​

Solid Line: On Axis
Dotted Line: 45° Off Axis

Product Details

BrandBeyma
Model4FR40
Part Number253-092
UPC8435469014428
Unit of MeasureEach
Weight1.6

Product Specifications

Nominal Diameter4"
Bolt Circle Diameter4.3
Power Handling (RMS)40 Watts
Power Handling (MAX)80 Watts
Impedance8Ω
Frequency Response100 to 20,000Hz
Sensitivity87dB 2.83V/1m
Voice Coil Diameter0.8"

Thiele-Small Parameters

Resonant Frequency (Fs)92Hz
DC Resistance (Re)6.4Ω
Voice Coil Inductance (Le)0.2mH
Mechanical Q (Qms)11.3
Electromagnetic Q (Qes)0.96
Total Q (Qts)0.88
Compliance Equivalent Volume (Vas)0.098ft³
Mechanical Compliance of Suspension (Cms)668mm/N
BL Product (BL)4.2T·m
Diaphragm Mass Inc. Airload (Mms)0.0044g
Maximum Linear Excursion (Xmax)3mm
Surface Area of Cone (Sd)0.0055cm²

Materials of Construction

Cone MaterialPaper
Surround MaterialSantoprene®
Basket / Frame MaterialSteel
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter4.6"
Baffle Cutout Diameter3.6"
Depth2.4"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.147ft³
Sealed F397.52Hz
Vented Volume0.464ft³
Vented F354.78Hz

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