Quick Overview

The Dayton Audio SS12-PR 12" Signature Series Passive Radiator makes it easy to achieve extended low-frequency performance from compact enclosures, making it the ideal partner for the SS12-22 subwoofer. With the same heavy-duty cast aluminum frame, anodized aluminum cone, and rubber surround as its powered counterpart, the SS12-PR provides the excursion capability needed to complement today’s high-output drivers. Thanks to Dayton Audio’s Sandwich Mass Structure (SMS) tuning system, adjusting and securing the added mass is quick, accurate, and reliable.

Product Highlights

Signature Series styling with cast aluminum frame, aluminum cone, and rubber surround — visually identical to the SS12-22 driver
Passive radiator design enables deep bass extension from compact enclosures without port noise
Sandwich Mass Structure (SMS) places added mass between spider and surround for stability and symmetry
Simple tuning with threaded bolt, wing nut, and nylock nut for secure mass adjustment
Includes five 116 g weights for flexible tuning options
Perfect companion for the Dayton Audio SS12-22 in compact high output systems

Product Manuals / Spec Sheets / Downloads

Dayton Audio SS12-PR Specification Sheet

Buying Options

Dayton Audio SS12-PR 12" Signature Series Passive Radiator

The Dayton Audio SS12-PR 12" Signature Series Passive Radiator is the perfect solution for extending low-frequency response in compact subwoofer enclosures. By replacing a traditional port, this passive radiator makes it possible to achieve deep bass without turbulence, port noise, or oversized cabinet designs. When paired with the SS12-22, the SS12-PR creates a system capable of powerful, articulate bass extension in a space-efficient format.

Signature Series Styling and Construction

To visually and mechanically match the Signature Series subwoofers, the SS12-PR uses the same rigid cast aluminum frame, thick anodized aluminum cone, and high-roll rubber surround. From the front, it is indistinguishable from the SS12-22, giving finished systems a seamless and professional look. Its durable suspension and rigid cone allow for the high excursion necessary to complement powerful subwoofers while maintaining low distortion.

Innovative Sandwich Mass Structure

At the core of the SS12-PR is Dayton Audio’s Sandwich Mass Structure (SMS) system. This design places all added tuning mass between the spider and the surround, keeping it perfectly centered and stable during long excursion operation. A threaded bolt with both a wing nut and a nylock nut makes adjustments secure and easy, while the included set of five 116 g weights provides plenty of flexibility for precise tuning.

Achieve Effortless Deep Bass — the Perfect Partner for the SS12-22

With its rugged construction, refined design, and innovative tuning system, the Dayton Audio SS12-PR is the ideal match for the SS12-22 subwoofer. By making it simple to unlock extended bass response from compact enclosures, the SS12-PR delivers the performance and flexibility that today’s home theater, hi-fi, and car audio systems demand.

Package Contents

(1) Passive Radiator
(5) 116 gram disk weights
(1) Nylon locking nut (for final assembly)
(1) Wing Nut

Tip: As a general rule, the passive radiator(s) should have at least double the displacement of air (Vd) as the active woofer(s)/subwoofer(s) in the system. To calculate Vd=Xmax ∗ Sd

Note: Passive raidator specs listed below measured with no additional mass included.

Product Details

Speaker Series	Signature Series
Model Number	SS12-PR
Color	Black
Unit of Measure	Each
UPC	848791011153
Warranty - Parts	5 Years
Warranty - Labor	5 Years
Product Shipping Weight (lbs.)	9 lbs.
Speaker Type	Passive Radiator
Nominal Diameter	12"
Cone / Diaphragm Material	Aluminum
Surround Material	Rubber
Basket/Frame Material	Cast Aluminum
Overall Outside Diameter	320.9 mm
Overall Depth	102.3 mm
Baffle Cutout Diameter	285.3 mm
# Mounting Holes	8
Bolt Circle Diameter	302 mm