Passive subwoofer for low-frequency building acoustics

HD2050.40

Passive subwoofer for low-frequency building acoustics, 45 Hz to 120 Hz, 500 W RMS, 130 dB spl Peak @ 1 m, LF 1 x 12” neodymium driver, 4 ohm impedance and 2x Neutrik® NL4 speakON connectors.
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Introduction

High-insulation building elements and large-volume rooms can demand more low-frequency energy than a dodecahedron alone can provide. HD2050.40 extends the HD2050 system for sound insulation, sound absorption and reverberation time measurements where strong excitation at lower frequencies is needed.
 
Used with the HD2050 dodecahedron and HD2050.20 digital power amplifier, the passive subwoofer delivers 130 dB spl Peak @ 1 m across 45 Hz to 120 Hz. This gives acoustic laboratories, consultants and materials manufacturers a practical way to excite rooms in demanding low-frequency measurement conditions.
 
Its band-pass design radiates through front and rear resonant cavities, improving low-frequency efficiency while reducing membrane movement compared with reflex systems. The LF 1 x 12” neodymium driver, 500 W RMS rating and 22 kg cabinet with anti-scratch gelcoat support reliable use in specialist building acoustics applications.

Low-frequency reach
Covers 45 Hz to 120 Hz for insulation and reverberation work in large rooms.
High sound energy
130 dB spl Peak @ 1 m helps excite rooms in demanding acoustic insulation tests.
System integration
Works with the HD2050 dodecahedron and HD2050.20 digital power amplifier.
Efficient bass output
Band-pass design uses front and rear resonant cavities to reduce membrane movement.

Features

Band-pass enclosure

The subwoofer radiates through front and rear resonant cavities rather than direct radiation.

Low-frequency driver

The acoustic section uses an LF 1 x 12” loudspeaker with a neodymium magnet.

Speaker connection

Two Neutrik® NL4 speakON connectors provide the signal connection to the system.

System use

The subwoofer is designed to be combined with the HD2050 dodecahedron and HD2050.20 digital power amplifier.

Cabinet finish

The 22 kg cabinet uses an anti-scratch gelcoat finish for use in acoustic measurement environments.

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