DIR Slim

The DIR SLIM by Ntek is a high-performance directional loudspeaker designed specifically for precision sound measurements in building acoustics and noise evaluation. It serves as a powerful alternative to omnidirectional dodecahedron loudspeakers, particularly when focused sound radiation is required for insulation and reverberation measurements.

Key Features:

• Directional Sound Radiation: Engineered to focus sound with a high directivity index, making it ideal for measuring airborne sound insulation and evaluating sound decay across specific paths.
• High Sound Pressure Level: Capable of delivering a maximum sound pressure level (SPL) of 122 dB, ensuring strong and uniform sound coverage even in large spaces.
• Dual Channel Output: Supports two channels for extended measurement configurations and compatibility with multi-channel systems.
• Wide Frequency Range: Operates across a broad frequency range from 40 Hz to 10 kHz, enabling accurate assessment of both low and high frequencies.
• Durable and Robust: Built with a rigid and impact-resistant frame, ensuring long-term reliability in demanding field conditions.
• Lightweight and Portable: Weighing only 9 kg, it is designed for easy transportation and quick setup in various testing environments.
• 6 m Connection Cable: Equipped with a long connection cable, allowing flexible placement and easy integration with amplifiers and noise sources like the AMG Mini system.

Applications:

• Building Acoustics: Used for evaluating airborne sound insulation between rooms, doors, and windows according to ISO standards.
• Reverberation Time Measurements: Assesses the acoustic behavior of rooms by generating uniform directional noise.
• Product Testing: Evaluates the acoustic performance of doors, walls, and partitions under controlled sound emission.
• Sound Power Measurements: Supports measurements in accordance with ISO 140-5 and ISO 16283-3 standards.
• Environmental Noise Assessments: Applicable in specific field conditions requiring directional noise propagation studies.

Technical Specifications:

• Maximum SPL: 122 dB
• Frequency Range: 40 Hz – 10 kHz
• Directivity Index: 6 dB
• Number of Channels: 2
• Weight: 9 kg
• Cable Length: 6 meters
• Construction: Sturdy, impact-resistant housing for durability
• Standards Compliance:
  • UNI EN ISO 140-5
  • UNI EN ISO 16283-3
  • UNI EN ISO 3382
  • UNI EN ISO 354

Benefits:

• Focused sound radiation for precise acoustic measurements.
• High SPL ensures accurate testing in large spaces and high-noise environments.
• Lightweight design simplifies transport and installation.
• Durable construction: suitable for both indoor and outdoor applications.
• Compliant with international standards, ensuring reliable test results.

The DIR SLIM is an essential tool for acoustic consultants, engineers, and building professionals requiring accurate directional noise emission for insulation testing, reverberation assessments, and environmental noise evaluation.