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Product Details
Dayton Audio RS180-4 7″ Reference Woofer 4 Ohm

The Dayton Audio Reference Series sets a new standard of value in high-performance loudspeaker drivers. Utilizing a low-distortion motor system with two short-circuit paths and a rigid aluminum cone, the Reference Series can outperform drivers that cost several times the price. Their low-distortion characteristics and high excursion capabilities provide exceptional clarity, detail, and dynamics. Woofer features a black anodized cone, heavy-duty 6-hole cast frame, low-loss rubber surround, solid aluminum phase plug, and gold spring terminals.

Product Specifications
Nominal Diameter
7″

Power Handling (RMS)
60 Watts
 
Power Handling (max)
120 Watts

Impedance
4 ohms
 
Frequency Response
39 to 3,600 Hz

Sensitivity
89.2 dB 2.83V/1m
 
Voice Coil Diameter
1.5″
Thiele-Small Parameters
Resonant Frequency (Fs)
38.4 Hz

DC Resistance (Re)
3.1 ohms
 
Voice Coil Inductance (Le)
0.45 mH

Mechanical Q (Qms)
2.13
 
Electromagnetic Q (Qes)
0.59

Total Q (Qts)
0.46
 
Compliance Equivalent Volume (Vas)
0.75 ft.³

Mechanical Compliance of Suspension (Cms)
0.97 mm/N
 
BL Product (BL)
4.71 Tm

Diaphragm Mass Inc. Airload (Mms)
17.8g
 
Maximum Linear Excursion (Xmax)
6 mm

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

Surround Material
Rubber
 
Voice Coil Wire Material
Copper

Voice Coil Former
Aluminum
 
Basket / Frame Material
Cast Aluminum

Magnet Material
Ferrite
 
Mounting Information
Overall Outside Diameter
7.11″

Baffle Cutout Diameter
5.75″
 
Depth
3.23″

Bolt Circle Diameter
6.63″
 
# Mounting Holes
6
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
Sealed Volume
0.38 ft.³

Sealed F3
67 Hz
 
Vented Volume
1.0 ft.³

Vented F3
33 Hz