D&B audiotechnik C7 – Compact 3-Way Point‑Source Cabinet

The C7 is a highly efficient three-way loudspeaker designed for medium-to-long throw applications. It integrates high-output drivers in a compact enclosure, optimized for both touring and fixed installations.

Acoustic Design & Coverage

• Drivers:
  • 2 × 6″ long‑excursion low-frequency units
  • 1 × 8″ horn-loaded mid-frequency driver
  • 1 × 1.4″ high-frequency compression driver with beryllium diaphragm
• Dispersion Pattern: Approximately 75° × 40°, optimized for focused projection
• Horn Orientation: Fixed horizontal but optimized for coverage in mid/high band

Performance Specifications

• Frequency Response (–5 dB): Approximately 115 Hz – 18 kHz
• Max SPL at 1 m (crest-factor 4): Up to ~138 dB depending on amplifier model
• Power Handling:
  • LF drivers: 400 W RMS / 2,000 W peak
  • MF + HF drivers: matched for optimized headroom
• Nominal Impedance: 8 Ω
• Deployment: Typically flown or ground stacked in horizontal arrays of up to 10 cabinets

Mechanical & Build Details

• Construction: Marine-grade plywood with impact-resistant black finish
• Grille: Rigid perforated steel with replaceable acoustic foam
• Rigging Hardware:
  • Integrated quick-lock rigging pins for simple horizontal mounting
  • Internal thread anchors for safety wiring
• Handles: Two recessed handles on top and bottom
• Connectors: Dual EP5 or NL4 (wired in parallel for redundancy)
• Dimensions (H × W × D): ~310 × 580 × 406 mm
• Weight: Approximately 34 kg

System Integration

• Compatible Amplifiers: Often driven in pairs per channel using D20, D40, or D80
• Preset Modes: Supports high-frequency compensation (HFC) and coupling compensation (CPL) when managed via supported d&b controllers
• Recommended Systems: Used with compatible subwoofers like C7-SUB or C4-SUB for full-range output
• Rigging Configuration: Can be flown alone or as horizontal bars of up to 8 cabinets; vertical stacking not recommended

Application & Usage

• Ideal for medium-range FOH coverage at festivals, corporate events, and theaters
• Works well as distributed side or front fill in larger systems
• Compact format well-suited for narrow stage wings or limited install spaces
• Often deployed in paired format to form stereo or dual-zone systems