Sub-woofer crossover and alignment

Crossover frequencies

The original factory controller settings for W8L, W8LC and W8LM systems are intended for use with sub- bass systems such as the W8LS, WLX or WSX.

As a consequence LF high pass filters should be set as follows:

Loudspeaker Type	Default (with subs)	Full-range (without subs)
W8L	35Hz* 24dB/8ve L-R	25Hz 24dB/8ve L-R
	(assuming stacked WLXs)
	*Use 60Hz when used
	with W8LS direct
	radiating subs
W8LC	60Hz 24dB/8ve L-R	30Hz 24dB/8ve L-R
W8LM	70Hz 24dB/8ve L-R	30Hz 24dB/8ve L-R

Note that the W8L system’s LF response extends down into the low bass region. For maximum Heavy Metal or Dance headroom a substantial mid-bass overlap can be allowed when horn-loaded W8L main systems are used with horn-loaded sub-woofers such as WLXs.

Compact systems like the W8LC and W8LM are designed to run with minimal overlap. They are always high-passed at 60-70Hz when used with sub-woofers.

Time alignment

W8L, W8LC and W8LM inter-driver delays

Standard Martin Audio presets apply small output channel delays to DX1 or DP226 controllers to align the multiple drivers within W8L, W8LC and W8LM cabinets.

These inter-driver delays are not user adjustable. They have a strong influence on a system’s off-axis lobe structure in addition to the usual on axis performance alignment.

Very important note!

Crossover frequency and phase settings should never be adjusted to compensate for room anomalies. Controller input equalizers or external equalizers (or, in an ideal world, room treatment!) should be used for that purpose.

Controller Reference Delays

The multiple driver delays in standard Martin Audio presets are “Lock Linked” to a particular crossover reference delay channel. In the absence of any main (W8L, W8LC) delay requirement, the W8L and W8LC reference delays default to zero because they relate to the LF horn drivers whose acoustical centre is furthest from the cabinet grille – i.e. the driver that every other driver in the cabinet gets delayed to.

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.