40 Hz reduced spacing

The above shows what happens at 40Hz if we reduce the spacing between the subwoofers to 4.3m.

We get better central coverage without 40Hz side lobes - adequate for long, narrow “shoe-box” venues but wider coverage would be required for most arenas.

40Hz close coupled

Close coupling would give a wider coverage at that frequency but the spacing could still give coverage irregularities at mid-bass frequencies due to the shorter wavelengths at higher frequencies.

The real world

Bass notes usually include harmonic components each with a different wavelength. Some will add giving an amplitude peak whilst others will subtract giving an amplitude dip. This will give tonal changes with listening position and emphasise particular notes and timbres.

In the following example, listeners over a wide central area will hear a warm bass note rich in harmonics whereas those around the sides (in line with the subwoofers at 90º) will hear less of the fundamental but more of the harmonics whose full wavelengths coincide with the subwoofer spacing.

All material © 2007. Martin Audio Ltd. Subject to change without notice.

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Martin Audio WLXGS manual Real world
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WLX, WLXGS specifications

The Martin Audio WLXGS and WLX line array systems represent a remarkable advancement in professional audio technology, providing powerful and precise sound reinforcement for various applications, from concerts to corporate events. These systems are part of Martin Audio's commitment to delivering high-performance sound solutions that are both reliable and easy to use.

At the heart of the WLXGS and WLX systems is their innovative design, which integrates advanced acoustic engineering with cutting-edge materials. The WLXGS, as a ground stack subwoofer, features two 18-inch drivers, which are optimized for deep bass response and efficiency. This design ensures that the low-frequency output is not only impactful but also well-controlled across a wide spectrum of environments. The WLX model, on the other hand, is designed for array applications, offering extreme versatility and scalable configurations suited for varying audience sizes.

One of the standout features of both the WLXGS and WLX systems is their ability to deliver exceptional sound quality. With a frequency response that extends from deep bass up through the midrange and treble frequencies, the systems maintain clarity and detail no matter the sound pressure level. This is crucial for live sound applications where vocal intelligibility and instrument clarity are essential.

The technology used in these speakers is also noteworthy. Martin Audio has employed its proprietary Optimized Digital Signal Processing (DSP) technology, which allows for precise tuning and control of sound characteristics. This technology helps mitigate issues such as interference and feedback, ensuring that the sound remains consistent and professional throughout an event.

Additionally, the WLXGS and WLX systems are designed for ease of deployment. The lightweight construction, combined with integrated rigging and stacking features, allows for quick setup and teardown, making them ideal for touring as well as fixed installations. The systems include integrated handles and optional accessories that facilitate transport and arrangement, making them user-friendly for audio engineers and technicians.

In conclusion, the Martin Audio WLXGS and WLX systems bring together powerful performance, innovative technologies, and practical design. Their combination of deep low-frequency output, clarity, and ease of use makes them a top choice for professionals in the audio industry, ensuring that audiences experience music and sound as intended by the artists and producers. Whether for large-scale events or intimate gatherings, the WLXGS and WLX deliver reliable performance that meets the high standards of modern sound reinforcement.
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