Dayton Audio ND140-8 5-1/4" Midbass Driver 8 Ohm

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Product description

Dayton Audio's ND140-8's compact aluminum cone demonstrates the latest advances in high-excursion design processes. Its compact size and high output make it perfect for your next point-source or line array speaker project.

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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 ND140-8 5-1/4" Aluminum Cone Midbass Driver 8 Ohm

Dayton Audio's ND140-8 midbass driver features an efficient, low-distortion Neo-Balanced motor that 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 ND140-8

Woofer Series ND Series

Woofer Type Midwoofer

Nominal Diameter 5.25"

Power Handling (RMS) 40 watts

Power Handling (max)80 watts

Impedance (Z) 8 ohm

Sensitivity 84.5 dB @ 2.83V/1m

Frequency Response 54 - 8,000 Hz

Voice Coil Diameter 25 mm

DC Resistance (Re) 7.8 ohms

Voice Coil Inductance (Le) 1.44 mH @ 1 kHz

Resonant Frequency (Fs) 56.5 Hz

Mechanical Q (Qms) 5.01

Electromagnetic Q (Qes) 0.79

Total Q (Qts) 0.68

Diaphragm Mass Inc. Airload (Mms) 10.4g

Mechanical Compliance of Suspension (Cms) 0.76 mm/N

Surface Area of Cone (Sd) 86.6 cm²

Volume of Displacement (Vd) 34.6 cm³

BL Product (BL) 6.05 Tm

Compliance Equivalent Volume (Vas) 7.74 liters

Maximum Linear Excursion (Xmax) 4.0 mm

Cone / Diaphragm Material Black Anodized Aluminum Cone

Surround Material Rubber

Voice Coil Wire Material Copper

Voice Coil Former Kapton® / Polyimide

Basket / Frame Material Steel

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 0.36 ft.³

Sealed F3 75 Hz

Vented Volume 0.84 ft.³

Vented F3 37 Hz