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Pair of black 52mm passive radiators with rubber and iron diaphragms

Ruth's sister

Ruth's sister 52mm Passive Radiator Pair international power cord

SKU CH-4760-E8647

Pair of 52 mm passive radiators with rubber-and-iron diaphragms for DIY sealed speaker enclosures

  • 52 mm passive radiators extend bass response in compact enclosures
  • Pair of rubber-and-iron diaphragms built for DIY speaker projects
  • 52 × 52 mm square profile fits standard 2-inch cut-outs
  • Vibrating iron-plate design reinforces low-frequency output
  • Closed-box installation required for effective performance

Passive Radiator Pair for DIY Speakers

This pair of 52 mm passive radiators is intended for hobbyists building or repairing sealed speaker enclosures. The rubber and iron diaphragm adds low-frequency response without a powered driver. They suit DIY wireless speaker projects where a closed cabinet is practical. Builders needing an active driver or ported design should look elsewhere.

52 mm Diaphragm Diameter

The critical specification is the 52 mm moving area, which determines the air displacement and low-end extension achievable in a sealed box. The radiators use a rubber surround bonded to an iron plate for controlled vibration. No other size or material variant is included in this kit.

Simple Press-Fit Installation

Each radiator measures approximately 52 by 52 mm and mounts into a matching square cutout in the enclosure panel. A tight, airtight fit is essential; any leak degrades bass performance. The supplied pair contains no gaskets or mounting hardware, so builders must provide their own sealing method. Misaligned cutouts or unsealed edges are the most common cause of poor results.

Highlights

  • 52 mm passive radiators extend bass response in compact enclosures
  • Pair of rubber-and-iron diaphragms built for DIY speaker projects
  • 52 × 52 mm square profile fits standard 2-inch cut-outs
  • Vibrating iron-plate design reinforces low-frequency output
  • Closed-box installation required for effective performance

Specifications

No published specifications for this item yet.

Questions about this item

What does the 52 mm diameter mean for bass response in a real enclosure?

The 52 mm passive radiators act as a tuned mass that extends low-frequency output without a port, but they only work effectively in a sealed box matched to the driver's compliance.

What interface or connection standard do these radiators use?

They have no electrical interface; they are unpowered mechanical diaphragms that couple acoustically to the air inside the enclosure.

What physical space and mounting holes are needed to fit the 52 mm units?

Each radiator measures about 52 x 52 mm square and requires a cut-out slightly smaller than the frame so the rubber surround can be screwed or glued to the baffle.

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