D&B Audiotechnik Q1 – Passive 2-Way Line Array Loudspeaker (Q-Series)

The D&B Audiotechnik Q1 is a compact, high-output passive 2-way line array loudspeaker engineered for vertical array deployment, delivering precise directivity, consistent coverage, and high SPL performance in both touring and fixed installations.

Designed by d&b audiotechnik, the Q1 is optimized for medium to large-scale sound reinforcement, where system scalability, weight efficiency, and predictable acoustic behavior are critical. Its dipolar LF design and toroidal waveguide ensure controlled dispersion and balanced sound reproduction across the audience area.

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Key Specifications

Configuration: Passive 2-way line array loudspeaker
Drivers:

• 2 × 10″ neodymium LF drivers (dipolar arrangement)
• 1 × 1.3″ HF compression driver with toroidal waveguide

Horizontal Dispersion: 75° constant directivity
Vertical Dispersion: 15° per cabinet

Frequency Response (±5 dB): 60 Hz – 17 kHz
Max SPL (1 m, free-field): Up to 139 dB (with D12, D20, D80 amplifiers)

Power Handling:

• 400 W RMS
• 1600 W peak

Nominal Impedance: 12 Ω
Amplifier Compatibility: D6, D12, D20, D80

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Physical & Mechanical Details

Construction: Marine plywood enclosure with impact-resistant black finish
Grille: Rigid steel grille with acoustically transparent foam backing

Rigging System:

• Integrated front and rear rigging hardware
• Quick-lock pins for secure array assembly
• Designed for fast deployment in touring environments

Dimensions (H × W × D): 308 × 580 × 410 mm
Weight: Approx. 22 kg

Connectors:

• 2 × NL4 (parallel wiring)
• Optional EP5 version for SenseDrive compatibility

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Key Features & Configuration

Dipolar LF Driver Arrangement:
The dual 10″ LF drivers are configured in a dipole design, reducing rearward energy and improving low-frequency control, especially in array configurations.

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Toroidal Waveguide Technology:
The HF section uses a toroidal waveguide to provide smooth frequency response and consistent horizontal dispersion, ensuring even coverage across the listening area.

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Passive 2-Way Design:
Simplifies system architecture while maintaining high output and efficiency when paired with d&b system amplifiers.

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High Output Capability:
Capable of delivering up to 139 dB SPL, making it suitable for demanding live sound environments.

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Coverage & Array Configuration

Horizontal Coverage:

• 75° constant directivity ensures consistent sound across the audience width

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Vertical Coverage & Splay Angles:

• 15° per cabinet
• Adjustable splay angles from 0° to 14° in 1° increments

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Practical Array Advantage

• Precise shaping of vertical coverage
• Even sound distribution from front to back
• Reduced overlap and interference between cabinets

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Typical Array Configurations

• Small systems: 4–6 cabinets per side
• Medium systems: 6–10 cabinets per side
• Large systems: 12–20 cabinets per side

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Acoustic Performance & System Behavior

The Q1 is designed for predictable line array behavior, ensuring consistent sound across different environments.

Real-World Performance

• Clear vocal intelligibility at distance
• Smooth frequency response across the coverage area
• Controlled low-frequency behavior due to dipole design

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Field Insight

In large outdoor deployments:

• Coverage remains even across long throw distances
• High-frequency clarity is maintained with HFC compensation
• Minimal system correction is required due to predictable dispersion

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DSP Modes & System Optimization

When used with compatible d&b amplifiers, the Q1 supports advanced system modes:

CUT Mode:
Reduces low-frequency output when used with subwoofers, improving system clarity.

HFC (High-Frequency Compensation):
Maintains high-frequency response over long distances.

CPL (Coupling):
Balances low-frequency buildup in longer arrays.

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Practical Benefit

• Faster system tuning
• Consistent tonal balance across venues
• Improved integration with subwoofer systems

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System Integration

The Q1 is typically deployed with:

• Q-SUB subwoofers for low-frequency extension
• d&b amplifiers (D12, D20, D80)
• Full Q-Series rigging systems

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Channel Loading

• Typically 2 × Q1 cabinets per amplifier channel
• Optimized for efficient system design and power distribution

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Deployment Options

• Flown vertical arrays for large-scale coverage
• Ground-stacked systems for outdoor events
• Hybrid systems with fills and delays

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Ideal Applications

Medium to large-scale sound reinforcement
Touring and rental systems
Outdoor festivals and live events
Theatres and concert venues
Corporate productions and houses of worship

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System Advantages in Practice

Scalability:
System can be expanded from small to large arrays without changing core components.

Efficiency:
High output relative to cabinet size reduces transport and rigging requirements.

Precision:
Controlled dispersion ensures consistent audience coverage.

Reliability:
Proven performance in demanding touring environments.

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Summary

The D&B Audiotechnik Q1 is a high-performance line array loudspeaker designed for scalable systems requiring precise coverage, high output, and reliable deployment.

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Bottom Line

For professional audio applications in Europe, the Q1 delivers a balanced combination of power, control, and efficiency, making it a key component in Q-Series line array systems used for touring, festivals, and installations.