B² Audio REF SQ63

With the B² Audio REF SQ63, B² Audio is targeting discerning audio enthusiasts who expect the highest level of precision and natural sound in their vehicles. This high-quality 3-way component system combines a powerful 6.5-inch low-midrange driver, a detailed 3-inch midrange driver, and a high-resolution 1-inch dome tweeter to deliver an exceptionally harmonious sound. High-quality materials such as multi-layer carbon-fiber cones, ceramic domes, and CNC-machined aluminum components ensure excellent transient response, low distortion, and impressive detail resolution.

These meticulously engineered speakers, featuring optimized magnetic drive systems, vented die-cast baskets, and high-quality crossovers, provide the ideal foundation for high-quality sound systems. The system is suitable for use with both passive crossovers and modern DSP and active systems, where maximum control over each frequency is desired.

Technical Specifications

• 3-Way High-End Component System
• 2x 165 mm (6.5") full-range drivers
• 2x 76 mm (3") midrange drivers
• 2x 25 mm (1") ceramic dome tweeters
• Includes 2-way passive crossovers
• Suitable for passive or active DSP systems
  
  

6.5" low-midrange driver

• Multilayer carbon fiber membrane
• Power handling: 70 watts RMS
• Maximum power: 100 watts
• Impedance: 4 Ω
• Frequency range: 50 Hz – 10,000 Hz
• Sensitivity: 87.6 dB (1 W / 1 m)
• Voice coil: 35.5 mm
• Ferrite Magnet System
• Ventilated Die-Cast Aluminum Basket
• Installation depth: 74.5 mm
• Installation diameter: 135 mm
• Outer diameter: 165 mm
• Weight: 1,700 g per speaker
  
  

3" midrange driver

• Multilayer carbon fiber membrane
• Power handling: 30 watts RMS
• Maximum power: 100 watts
• Impedance: 4 Ω
• Frequency range: 200 Hz – 20,000 Hz
• Sensitivity: 88.0 dB (1 W / 1 m)
• Voice coil: 30.5 mm
• Copper Voice Coil
• Neodymium Magnet System
• TIL Voice Coil Carrier (Non-Conductive)
• Ventilated Die-Cast Aluminum Basket
• Installation depth: 38.6 mm
• Installation diameter: 76.8 mm
• Outer diameter: 92 mm
• Weight: 450 g per speaker
  
  

1" tweeter

• Ceramic dome
• Power handling: 25 watts RMS
• Maximum power: 75 watts
• Impedance: 3 Ω
• Frequency range: approx. 550 Hz – 25,000 Hz
• Sensitivity: 86.0 dB (1 W / 1 m)
• 25.4 mm CCAW voice coil
• Dual Neodymium Magnet System
• CNC-milled aluminum housing
• Air-Cooled Cooling
• Installation depth: 28 mm
• Installation diameter: 45.4 mm
• Outer diameter: 57 mm
• Weight: 150 g per tweeter
  
  

Special Features

• Multi-layer carbon fiber membranes for high stiffness and low weight
• High-quality ceramic tweeters with excellent detail resolution
• FEA-Optimized Magnetic Drives
• Copper shorting rings to reduce distortion
• Ventilated die-casting baskets for optimal heat dissipation
• CNC-machined aluminum components
• Gold-colored precision components
• Ideal for high-end SQ and DSP applications
• Designed for the highest fidelity and precise soundstage imaging