Dayton Audio ND140-4 5-1/4" Aluminium Cone Midbass Driver 4 Ohm

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Product description

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

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Highlights

Extended-range 54 Hz to 8 kHz performance

Rubber-edged aluminum alloy cone

Large excursion capability—4 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

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Product details

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

Dayton Audio's compact aluminum cone drivers demonstrate the latest advances in high-excursion design processes. An efficient, low-distortion Neo-Balanced 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.

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Specifications

Article number ND140-4

Woofer Series ND Series

Woofer Type Midwoofer

Nominal Diameter 5.25"

Power Handling (RMS) 40 watts

Power Handling (max) 80 watts

Impedance (Z) 4 ohms

Sensitivity 88.4 dB @ 2.83V/1m

Frequency Response 54 - 8,000 Hz

Voice Coil Diameter 1"

DC Resistance (Re) 3.7 ohms

Voice Coil Inductance (Le) 0.79 mH @ 1 kHz

Resonant Frequency (Fs) 59.2 Hz

Mechanical Q (Qms) 5.35

Electromagnetic Q (Qes) 0.72

Total Q (Qts) 0.63

Diaphragm Mass Inc. Airload (Mms) 10.1g

Mechanical Compliance of Suspension (Cms) 0.71 mm/N

Surface Area of Cone (Sd) 86.6 cm²

Volume of Displacement (Vd) 34.6 cm³

BL Product (BL) 3.9 Tm

Compliance Equivalent Volume (Vas) 7.22 liters

Maximum Linear Excursion (Xmax) 4.0 mm

Cone / Diaphragm Material Black Anodized Aluminum Cone

Surround Material Rubber

Voice Coil Former Kapton Polyimide

Magnet Material Neodymium

Shielded Yes

Overall Outside Diameter 138 mm

Overall Depth 70.5 mm

Baffle Cutout Diameter 120 mm

# Mounting Holes 4

Sealed Volume 0.78 ft.³

Sealed F3 65 Hz

Vented Volume 1 ft.³

Vented F3 34 Hz