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NEW Beyma 6G40Nd G40 Series 6.5" Midbass Speaker 8 Ohm

Beyma
Part #253-002

NEW Beyma 6G40Nd G40 Series 6.5" Midbass Speaker 8 Ohm

Beyma
Part #253-002  
Model: 6G40Nd

The Beyma 6G40Nd is a 6.5" low/mid-frequency driver built for high-performance professional sound systems. Designed for clarity, efficiency, and durability, it delivers strong output with lightweight construction and weather protection. Ideal for compact systems and line array configurations.

Key Features
  • Shorting cap enhances frequency response and reduces harmonic distortion
  • FEA-optimized neodymium magnetic circuit ensures efficient performance
  • Specifically designed for mid-bass applications, delivering robust bass response
  • 2" aluminum voice coil for efficiency and clarity
  • Weatherproof treatment on both sides of the cone for safer outdoor usage
  • Optimized for line array systems, consistent sound coverage
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Overview

Beyma 6G40Nd G40 Series 6.5" Midbass Speaker 8 Ohm

6G40Nd G40 Series 6.5" Midbass Speaker 8 Ohm

The Beyma 6G40Nd is built to deliver powerful and precise low-mid frequency performance in compact professional audio systems. It features a 6.5" cone, a 2" aluminum voice coil, and a high-efficiency neodymium magnet, providing an ideal combination of lightweight construction and high power handling. With a 170 W AES power rating and 94 dB sensitivity, it delivers clear output across a wide 90–8,000 Hz frequency range, making it excellent for line array configurations. Its design includes a weatherproof cone treatment applied to both sides, offering protection in challenging environmental conditions without compromising sound quality. The addition of a shorting cap improves performance by extending high-frequency response and reducing harmonic distortion. These features, combined with the speaker's mechanical robustness and controlled displacement, make the 6G40Nd a versatile and reliable choice for demanding sound reinforcement applications.

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

Product Details

BrandBeyma
Model6G40Nd
Part Number253-002
UPC8435469041530
Unit of MeasureEach
Weight4

Product Specifications

Nominal Diameter6-1/2"
Bolt Circle Diameter6.8
Power Handling (RMS)170 Watts
Power Handling (MAX)340 Watts
Impedance8Ω
Frequency Response90 to 8,000Hz
Sensitivity94dB 2.83V/1m
Voice Coil Diameter2"

Thiele-Small Parameters

Resonant Frequency (Fs)85Hz
DC Resistance (Re)6Ω
Voice Coil Inductance (Le)0.2mH
Mechanical Q (Qms)3.7
Electromagnetic Q (Qes)0.36
Total Q (Qts)0.33
Compliance Equivalent Volume (Vas)0.247ft³
Mechanical Compliance of Suspension (Cms)250mm/N
BL Product (BL)11.2T·m
Diaphragm Mass Inc. Airload (Mms)0.014g
Maximum Linear Excursion (Xmax)3mm
Surface Area of Cone (Sd)0.014cm²

Materials of Construction

Cone MaterialPaper-Treated Paper
Voice Coil Wire MaterialAluminum
Magnet MaterialNeodymium

Mounting Information

Overall Outside Diameter7.4"
Baffle Cutout Diameter5.7"
Depth3.1"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.0397ft³
Sealed F3220.4Hz
Vented Volume0.097ft³
Vented F3129.7Hz

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