STEG MSS3

The STEG MSS3 from the exclusive Master Stroke series is a high-quality 4-inch midrange driver designed specifically for sophisticated car audio systems with the highest sound quality standards. Its intricately engineered carbon-fiber cone, powerful neodymium driver, and low-resonance cast aluminum basket enable exceptionally precise, dynamic, and detailed music reproduction.

The specially damped carbon-fiber diaphragm is characterized by high rigidity and low weight. This reduces unwanted diaphragm resonances and ensures that even the finest musical details are reproduced cleanly and with precision. The powerful neodymium magnet, in combination with the high-quality under-suspension voice coil, ensures precise diaphragm control and excellent transient response.

The vented cast aluminum basket and the drilled pole piece promote efficient ventilation of the drive system. With its compact mounting depth of just 44 mm, the MSS3 is ideal for high-end 3-way systems and custom sound-quality installations. The midrange driver is able to fully realize its sonic potential, particularly in a fully active configuration with a DSP amplifier.

The permanently integrated Hexagon protective grilles accentuate the exclusive design and protect the delicate diaphragms. The speakers are shipped in pairs in a high-quality wooden box.

Technical Specifications

• Manufacturer: STEG

• Model: MSS3

• Series: Master Stroke

• Speaker Type: High-End Midrange Driver

• Speaker size: 110 mm (4")

• Rated Power Handling (RMS): 70 watts

• Nominal impedance: 4 ohms

• DC resistance (Re): 3.6 ohms

• Frequency range: 100 – 12,000 Hz

• Sensitivity: 86 dB (1 W / 1 m)

• Diaphragm material: Damped carbon fiber composite diaphragm

• Basket material: Ventilated cast aluminum

• Magnet system: Neodymium

• Voice coil type: Under-suspension voice coil

• Voice coil diameter: 25.5 mm

• Voice coil former: Kapton with CCAW winding

• Core: Drilled and ventilated

• Resonance frequency (Fs): 97 Hz

• Total quality (Qts): 0.65

• Mechanical quality (Qms): 6.08

• Electrical quality (Qes): 0.68

• Equivalent volume (Vas): 2.04 liters

• Effective membrane area (Sd): 50 cm²

• Mass in motion (Mms): 4.74 g

• Force factor (BL): 3.76 Tm

• Voice coil inductance (Le): 0.09 mH

• Maximum linear diaphragm stroke (Xmax): 3 mm

• Weight: approx. 360 g per speaker
  
  

Dimensions

• Outer diameter: 110 mm

• Installation diameter: 92.2 mm

• Installation depth: 44 mm

• Mounting hole pattern: 4 × 105 mm

• Protective grille: Permanently integrated hexagonal grille
  
  

What's Included

• 2 × STEG MSS3 High-End Midrange Drivers

• 2 × built-in hexagonal protective grilles

• 1 × high-quality wooden box