STEG Q65C

The STEG Q65C is a high-quality 2-way component speaker system designed specifically for demanding car audio applications with active crossover. The system combines powerful Q65WF mid-bass drivers with precisely tuned QK1 fabric tweeters and delivers a detailed, dynamic, and balanced sound reproduction.

The 170-mm deep-midrange drivers feature exceptionally lightweight glass-fiber cones, low-damping rubber surrounds, and sturdy die-cast aluminum baskets. In combination with the high-quality ferrite magnets and temperature-resistant voice coils, they enable controlled bass reproduction and a natural rendering of the midrange.

The 28 mm QK1 fabric tweeters, featuring a specially coated diaphragm, a neodymium magnet, and a solid, CNC-machined aluminum housing, ensure clear and finely detailed high-frequency reproduction. The integrated resonance chamber supports precise reproduction and provides optimal conditions for custom sound tuning.

The STEG Q65C comes without passive crossovers and is ideal for fully active sound systems with a DSP amplifier or a separate digital signal processor.

Technical Specifications

General Characteristics

• Manufacturer: STEG

• Model: Q65C

• Series: QK High-End

• Speaker Type: 2-way component speaker system

• Nominal size: 165 mm (6.5 inches)

• Operating Mode: Fully Active

• Nominal impedance: 4 ohms

• Crossover networks: Not included

• System components: Q65WF low-midrange driver and QK1 tweeter
  
  

Low-Midrange Driver – STEG Q65WF

• Speaker size: 170 mm

• Nominal impedance: 4 ohms

• RMS Power Handling: 40 watts

• Maximum power handling: 80 watts

• Sensitivity: 89 dB (1 W/1 m)

• Resonance frequency (Fs): 46 Hz

• DC resistance (Re): 4.1 ohms

• Total quality (Qts): 0.612

• Voice coil diameter: 25.5 mm

• Voice coil: High-temperature resistant

• Diaphragm material: Lightweight fiberglass diaphragm

• Bead: Low-loss rubber bead

• Basket material: Die-cast aluminum

• Basket Type: Ventilated

• Magnetic material: High-quality ferrite

• Outer diameter: 170 mm

• Installation diameter: 147 mm

• Installation depth: 67.5 mm

• Mounting hole pattern: 4 × 161 mm
  
  

Tweeter – STEG QK1

• Tweeter type: High-end fabric tweeter

• Diaphragm diameter: 28 mm

• Nominal impedance: 4 ohms

• Rated power handling: 25 watts

• Sensitivity: 91 dB (2.83 V/1 m)

• Frequency range: 750 – 20,000 Hz

• Resonance frequency (Fs): 800 Hz

• DC resistance (Re): 3.9 ohms

• Mechanical quality (Qms): 1.371

• Electrical Quality (Qes): 2.353

• Total Quality (Qts): 0.866

• Diaphragm material: Specially coated fabric

• Voice coil: aluminum

• Magnet material: Neodymium

• Housing material: Solid CNC-machined aluminum

• Design: With coupling volume

• Outer diameter: 52 mm

• Mounting diameter: 44 mm

• Installation depth: 24 mm

• Additional space required for connections: approx. 9 mm

• Mounting Accessories: Plastic Surface-Mount Enclosures
  
  

What's Included

• 2 × STEG Q65WF low-midrange drivers

• 2 × STEG QK1 fabric tweeters

• 2 × Plastic Enclosures for Tweeters