HiFonics ZST10D2/D4

The HiFonics ZEUS STREET ZST10 subwoofers combine powerful bass reproduction with an exceptionally slim design. With an installation depth of only about 9 cm, these 25 cm (10-inch) subwoofers are ideal for space-saving car audio installations where conventional subwoofers cannot be used due to their greater installation depth.

The exceptionally rigid diaphragm is made of a high-quality glass-fiber-carbon composite. This design ensures high rigidity and enables precise bass reproduction even with large diaphragm excursions. A powerful dual-magnet drive, a generously sized 50-mm dual voice coil, and the robust steel basket ensure reliable performance.

With a 300-watt RMS power handling capacity and a maximum power handling capacity of 600 watts, the ZST10 subwoofers deliver powerful bass performance in a compact design. Since they are suitable for both compact sealed enclosures and bass-reflex designs, they can be flexibly integrated into a variety of car audio setups.

The two models differ in their voice coil impedance: The ZST10D2 has two 2-ohm voice coils, while the ZST10D4 is equipped with two 4-ohm voice coils. This allows you to select the appropriate model based on the power amplifier you are using.

Technical Specifications

General Technical Specifications

• Manufacturer: HiFonics

• Series: ZEUS STREET ZST

• Model: ZST10D2 / ZST10D4

• Design: Passive flat subwoofer

• Nominal diameter: 25 cm (10 inches)

• RMS Power Handling: 300 watts

• Maximum power handling: 600 watts

• Voice coils: 2 × 50 mm in diameter

• Voice coil winding height: 28 mm

• Diaphragm material: Glass-fiber-carbon composite

• Magnetic Drive: Dual-Magnet System

• Magnet weight: 2 × 22.5 oz (approx. 1.3 kg total)

• Basket material: Steel

• Design: Flat construction

• Magnet Cover: Blue Magnet Protector

• Maximum linear deflection (Xmax): ±10 mm

• Maximum mechanical deflection: ±15 mm

• Effective membrane area (Sd): 346 cm²

• Sensitivity (SPL): 83 dB (1 W/1 m)

• Outer diameter: 259 mm

• Installation opening: 232 mm

• Installation depth: 90 mm, according to the user manual
  
  

HiFonics ZST10D2 – 2 × 2 ohms

• Impedance: 2 + 2 ohms

• Parallel connection: 1 ohm

• Series connection: 4 ohms

• DC resistance (Re): 2 × 1.8 ohms

• Resonance frequency (Fs): 34.6 Hz

• Mechanical Grade (Qms): 5.05

• Electrical Quality (Qes): 0.89

• Total quality (Qts): 0.75

• Equivalent volume (Vas): 22.5 liters

• Moving mass (Mms): 159 g
  
  

HiFonics ZST10D4 – 2 × 4 ohms

• Impedance: 4 + 4 ohms

• Parallel connection: 2 ohms

• Series connection: 8 ohms

• DC resistance (Re): 2 × 3.6 ohms

• Resonance frequency (Fs): 33.1 Hz

• Mechanical Grade (Qms): 4.07

• Electrical Quality (Qes): 0.85

• Total Quality (Qts): 0.70

• Equivalent volume (Vas): 27.5 liters

• Moving mass (Mms): 142 g