Reference Audio RA-EOS 8.4 8″ 500W Dual 4 Ohm Subwoofer

Reference Audio RA-EOS 8.4 8″ 500W Dual 4 Ohm Subwoofer

Powerful Bass Performance in a Compact 8-Inch Design

Experience powerful, controlled bass with the Reference Audio RA-EOS 8.4 8-Inch Subwoofer, engineered to deliver impressive low-frequency performance in a compact design.

Featuring a robust cast aluminium basket, non-pressed paper cone and high-density foam surround, this subwoofer is built for durability, accurate bass reproduction and reliable performance.

The 2-inch, 4-layer aluminium voice coil and substantial 94.4oz ferrite magnet structure provide the foundation for powerful bass output, while the dual 4-ohm voice coil configuration offers flexible wiring options for compatible car audio amplifiers.

With its rigid construction and 500W nominal power handling, the RA-EOS 8.4 is an excellent choice for car audio enthusiasts looking to upgrade their sound system with deep, punchy bass without requiring a large subwoofer installation.

Features

8-Inch High-Performance Car Audio Subwoofer

500W Nominal Power Handling

Dual 4 Ohm Voice Coil Configuration

Heavy-Duty Cast Aluminium Basket

Non-Pressed Paper Cone for Accurate Bass Reproduction

High-Density Foam Surround

2-Inch Aluminium Voice Coil

4-Layer Voice Coil Construction

Powerful 94.4oz Ferrite Magnet Structure

Durable PP Dust Cap

85dB Sensitivity

Compact Design for Custom Subwoofer Installations

Suitable for Various Car Audio Bass Applications

Technical Specifications

Brand: Reference Audio

Model: RA-EOS 8.4

Series: EOS

Subwoofer Size: 8 Inches (200mm Class)

Nominal Power Handling: 500W

Nominal Impedance: Dual 4 Ohm (DVC)

DC Resistance (Re): 2 x 3.2 Ohms

Sensitivity: 85dB

Frequency Response: 50Hz – 1000Hz

Cone Material: Non-Pressed Paper

Surround Material: High-Density Foam

Basket Material: Cast Aluminium

Dust Cap: Polypropylene (PP)

Voice Coil Diameter: 50.95mm (2 Inches)

Voice Coil Height: 28mm

Voice Coil Former Material: Aluminium

Voice Coil Layers: 4

Magnetic Gap Height: 8mm

Magnet Type: Ferrite

Magnet Structure Weight: 94.4oz

Overall Dimensions: Ø220 x 152mm

Thiele/Small Parameters (EOS 8.4)

Resonant Frequency (Fs): 78.793Hz

Suspension Compliance (Cms): 66.716µm/N

Mechanical Q Factor (Qms): 5.166

Electrical Q Factor (Qes): 0.45

Total Q Factor (Qts): 0.414

Moving Mass (Mms): 109.838g

Equivalent Compliance Volume (Vas): 7.31L

Effective Piston Area (Sd): 198.45cm²