Passive Radiator

Short Description:

Business Type: Manufacturer with OEM/ODM service

Main Product: Rubber Surround/Cone Assembly/Other Rubber Products

Number of Employee: 50~100

Year of Establishment: 2001

Management System Certification: ISO14001, IATF16949

Product Detail

Product Tags

Product Detail

Material Cone body: Metal
  Surround: Rubber
Size from 1 inch to 21 inch
Color As requested by clients
Frequency Can be adjusted according to customer’s request
Feature Anti-aging, Waterproof, Durable

A speaker enclosure using a passive radiator (PR) usually contains an "active loudspeaker" (or main driver), and a passive radiator (also known as a "drone cone"). The active loudspeaker is a normal driver, and the passive radiator is of similar construction, but without a voice coil and magnet assembly. It is not attached to a voice coil or wired to an electrical circuit or power amplifier. The passive-radiator principle was identified as being particularly useful in compact systems where vent realization is difficult or impossible, but it can also be applied satisfactorily to larger systems.

Passive radiators are used in many modern speakers because they are a terrific way to get a whole lot of extra oomph out of a sound system without diverting valuable energy into creating that lovely bass effect that we all enjoy so much.

A passive radiator is powered by the air pressure generated by the smaller powered speaker inside a modern sound system. They use a subtle and clever method to do a lot of work using very little power. It cancels out vibration and noise significantly, bringing in high fidelity sound quality.

Processing Steps

Cone body: Material cutting → Cone body Forming → Cone body Cutting → Surface anodized or painting

Rubber surround: Raw material preparation → Material Mixing → Milling → Cutting → Vulcanization → Gluing → Baking through the oven

Cone Assembly: Assembly → Reinforcement → Packing → Outgoing inspection


Passive radiators are used in Bluetooth speakers, home stereo speakers, subwoofer cabinets and car audio speaker systems, particularly in cases where there is not enough space for a port or vent system. While most studio monitor speakers are either ported bass reflex design, or closed-back without a vent or passive radiator, Mackie's HR824 and HR624 monitor speakers have a passive radiator installed on the rear of the cabinet. Focal also sells a studio monitor with a passive radiator called the SM9.

Respective examples of a smart speaker and a portable Bluetooth Speaker utilizing passive radiators are Apple's HomePod mini and Ultimate Ears' UE Boom.

Main Export Market

Asia, USA, Europe, Middle East/Africa

Delivery & Shipment &Payment

FOB/CIF Port: Shen Zhen/Guang Zhou

Production Lead Time: 30~50days after confirming the order

Payment method: Advance TT, T/T


Small quantity is usually shipped by courier.

Bulk quantity ship by air or by sea to save delivery fee



Our rewards are reducing selling prices, dynamic revenue team, specialized QC, sturdy factories, superior quality services for Rubber surround, Cone paper and Other rubber products. We have been certified by ISO 9001 and IATF16949. With more than 20 years experiences in manufacturing and designing, so our items featured with best quality and competitive selling price. Welcome cooperation with us!

Reliable quality and good credit standing are our principles, which will help us at a top-ranking position. Adhering to the tenet of "quality first, customer supreme" for Acoustic accessories. Now we have a excellent team supplying specialist service, prompt reply, timely delivery, excellent quality and best price to our customers. Satisfaction and good credit to every customer is our priority. We have been sincerely looking forward to cooperating with customers all over the world. We believe we can satisfy with you. We also warmly welcome customers to visit our company and purchase our solutions.

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