Square Passive Bass Radiator Vibration Film – 3 Sizes, 2 Pack

Upgrade Your Speaker's Low-End Performance

Get deeper, richer bass from your compact speakers with this Square Passive Bass Radiator Vibration Film. Made from durable rubber, this passive diaphragm plate is designed to improve low-frequency response in small speakers and loudspeakers — whether in your car audio setup or home audio system. Available in three size options to suit a variety of speaker builds.

Key Features

• Premium Rubber Construction: Flexible yet durable rubber material ensures consistent vibration and long-lasting performance.
• Three Size Options: Choose the size that best fits your speaker enclosure:
  • A (3686): 36 × 86 mm (1.4 × 3.3 in)
  • B (6085): 60 × 85 mm (2.3 × 3.3 in)
  • C (5065): 50 × 65 mm (1.9 × 2.5 in)
• Passive Bass Radiator Design: Helps reduce air turbulence inside the enclosure and minimizes compression on the speaker unit during high-speed motion, resulting in cleaner, more extended bass output.
• Versatile Compatibility: Ideal for small-sized speakers, Bluetooth speaker enclosures, car door speakers, and DIY audio projects.
• Easy Installation: Simple to fit and remove — no special tools required.
• Water Resistant: Suitable for use in environments where light moisture exposure may occur.
• Square Shape: Space-efficient design for rectangular enclosures and compact builds.

Specifications

• Item Type: Passive Bass Radiator Vibration Film
• Material: Rubber
• Color: Black
• Sizes: A: 36×86mm | B: 60×85mm | C: 50×65mm
• Quantity: 2 PCS per pack
• Country of Origin: Made in China

What's in the Box

• 2 × Square Passive Bass Radiator Vibration Film

Note: Bass Vibration Film only. Other accessories shown in product images are for demonstration purposes and are NOT included. No retail packaging. Please allow 0–1 cm measurement variance due to manual sizing.

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Frequently Asked Questions

Q: What is a passive bass radiator vibration film and what does it do?

A: A passive bass radiator vibration film is a flexible diaphragm installed in a speaker enclosure that moves in response to internal air pressure. It helps extend low-frequency output and reduce air turbulence inside the enclosure, delivering fuller, deeper bass from compact speaker builds without adding a powered amplifier.

Q: Which size square bass radiator should I choose for my speaker?

A: Choose based on the available mounting space in your speaker enclosure. Option A (36×86mm) suits narrow, elongated openings; Option B (60×85mm) works well for wider rectangular ports; and Option C (50×65mm) is ideal for more compact square openings. Measure your enclosure's port cutout carefully before ordering.

Q: Is this passive bass radiator compatible with car audio systems as well as home speakers?

A: Yes! This square passive bass radiator vibration film is designed for use in both car audio installations and home speaker enclosures. Its water-resistant rubber construction also makes it suitable for environments with occasional light moisture exposure.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.