คำอธิบาย

Product Details
Dayton Audio ND140-4 5-1/4″ Aluminum Cone Midbass Neo 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.

Product Specifications
Nominal Diameter
5-1/4″

Power Handling (RMS)
40 Watts
 
Power Handling (max)
80 Watts

Impedance
4 ohms
 
Frequency Response
54 to 8,000 Hz

Sensitivity
88.4 dB 2.83V/1m
 
Voice Coil Diameter
1″
Thiele-Small Parameters
Resonant Frequency (Fs)
59.2 Hz

DC Resistance (Re)
3.7 ohms
 
Voice Coil Inductance (Le)
0.79 mH

Mechanical Q (Qms)
5.35
 
Electromagnetic Q (Qes)
0.72

Total Q (Qts)
0.63
 
Compliance Equivalent Volume (Vas)
0.36 ft.³

Mechanical Compliance of Suspension (Cms)
0.71 mm/N
 
BL Product (BL)
3.9 Tm

Diaphragm Mass Inc. Airload (Mms)
10.1g
 
Maximum Linear Excursion (Xmax)
4 mm

Surface Area of Cone (Sd)
86.6 cm²
 
Materials of Construction
Cone Material
Aluminum

Surround Material
Rubber
 
Voice Coil Former
Kapton® / Polyimide

Magnet Material
Neodymium
 
Mounting Information
Overall Outside Diameter
5.5″

Baffle Cutout Diameter
4.75″
 
Depth
2.5″

# Mounting Holes
4
 
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
Sealed Volume
0.78 ft.³

Sealed F3
65 Hz
 
Vented Volume
1 ft.³

Vented F3
34 Hz