ND140-4 5-1/4" Aluminum Cone Midbass Driver 4 Ohm

Quick Overview

Dayton Audio's compact aluminum cone drivers demonstrate the latest advances in high-excursion design processes.

Product Highlights

• Extended-range 54 Hz to 8 kHz performance
• Rubber-edged aluminum alloy cone
• Large excursion capability4 mm Xmax, 20 mm peak
• Self-shielded Neo-Balanced motor structure
• 1" 4-layer underhung voice coil with polyimide former
• 40 watts RMS power handling

Product Manuals / Spec Sheets / Downloads

ND140-4 5-1/4" Aluminum Cone Midbass Driver

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Product Description

's compact aluminum cone drivers demonstrate the latest advances in high-excursion design processes. An efficient, low-distortion Neo-Sym motor is combined with a rigid yet lightweight aluminum diaphragm, yielding impressive high-impact audio reproduction. Perfect for single point-source applications, or combined in multiples and line arrays.

PRODUCT DETAIL


Speaker Series Neo-Balance
Model Number ND140-4
List Price $39.99
Unit of Measure Each
UPC 844632081484
Warranty - Parts 5 Years
Warranty - Labor 5 Years
Product Shipping Weight 1.0000

PRODUCT SPECIFICATIONS


Speaker Type Midrange
Nominal Diameter 5.25"
Power Handling (RMS) 40 watts
Power Handling (max) 80 watts
Impedance 4 ohms
Sensitivity 85.3 dB 2.83V/1m
Frequency Response 54 - 8,000 Hz
Voice Coil Diameter 1"

THIELE-SMALL PARAMETERS


DC Resistance (Re) 3.7 ohms
Voice Coil Inductance (Le) 0.72 mH
Resonant Frequency (Fs) 54.0 Hz
Mechanical Q (Qms) 6.59
Electromagnetic Q (Qes) 0.74
Total Q (Qts) 0.66
Diaphragm Mass Inc. Airload (Mms) 9.00 g
Mechanical Compliance of Suspension (Cms) 0.97 mm/N
Surface Area Of Cone (Sd) 86.6 cm2
Volume of Displacement (Vd) 34.6 cm3
BL Product (BL) 3.90 Tm
Compliance Equivalent Volume (Vas) 0.36 cu. ft.
Maximum Linear Excursion (Xmax) 4.0 mm

MATERIALS OF CONSTRUCTION


Cone / Diaphragm Material Black Anodized Aluminum Cone
Surround Material Low Loss Rubber
Voice Coil Former Polyimide
Dual Voice Coil No
Magnet Material Neodymium
Shielded No

MOUNTING INFORMATION


Overall Outside Diameter 5.500"
Overall Depth 2.500"
Baffle Cutout Diameter 4.750"
# Mounting Holes 4