RS180P-4 7" Reference Paper Woofer 4 Ohm

Quick Overview

Dayton Audio Reference Series paper cone drivers combine class-leading low distortion performance with super smooth frequency response due to the use of a proprietary cone blend.

Product Highlights

  • Similar cosmetics and design features as original Reference Series with low-distortion motor, 6-hole cast frame, rubber surround, and solid aluminum phase plug
  • Perfect as a woofer, midwoofer, or dedicated midrange driver
  • Three-part paper composite diaphragm featuring paper, Kevlar®, and glass fibers
  • 6 mm of Xmax and 88.2 dB sensitivity

Product Manuals / Spec Sheets / Downloads

Dayton Audio RS180P-4 Specification Sheet

Buying Options

The performance of the original groundbreaking Reference Series from Dayton Audio, now available with a paper cone! The Reference Series Paper drivers use a proprietary paper cone formulation combining natural paper pulp and synthetic Kevlar® and glass fibers to create an advanced non-woven fiber composite that delivers the perfect combination of excellent detail and smooth, natural sonic character, plus a distinctive, classy look.


Sealed Volume 0.27 ft.³
Sealed F3 78 Hz
Vented Volume 0.64 ft.³
Vented F3 42 Hz
* Enclosure volume/F3s based on BassBox "optimum" calculations

Speaker Series Reference Series
Model Number RS180P-4
Color Black
Unit of Measure Each
UPC 848791001444
Warranty - Parts 5 Years
Warranty - Labor 5 Years
Product Shipping Weight (lbs.) 4
Speaker Type Woofer
Nominal Diameter 7"
Power Handling (RMS) 60 watts
Power Handling (max) 90 watts
Continuous Program Power --
Impedance 4 ohms
Sensitivity 90.8 dB @ 2.83V/1m
Frequency Response

35 - 8

000 Hz

Voice Coil Diameter 38.5 mm
Magnet Weight --
DC Resistance (Re) 3.1 ohms
Voice Coil Inductance (Le) 0.47 mH @ 1 kHz
Resonant Frequency (Fs) 37.7 Hz
Mechanical Q (Qms) 1.98
Electromagnetic Q (Qes) 0.48
Total Q (Qts) 0.39
Diaphragm Mass Inc. Airload (Mms) 14.8g
Moving Mass Of Diaphragm (Mmd) --
Mechanical Compliance of Suspension (Cms) 1.21 mm/N
Surface Area Of Cone (Sd) 126.7 cm²
Volume of Displacement (Vd) 76.02 cm³
BL Product (BL) 4.67 Tm
Compliance Equivalent Volume (Vas) 27.3 liters
Maximum Linear Excursion (Xmax) 6 mm
Drivers Mechanical Losses (Rms) --
Cone / Diaphragm Material Paper / Kevlar Cone
Entry / Exit Diameter --
Surround Material Rubber
Voice Coil Wire Material --
Voice Coil Former --
Basket/Frame Material Cast Aluminum
Magnet Material Ferrite
Overall Outside Diameter 180.5 mm
Overall Depth 81 mm
Baffle Cutout Diameter 146 mm
# Mounting Holes 6
Mounting Hole Diameter --
Bolt Circle Diameter 168.40 mm
Product Weight --