Martin-audio WLX User Manual

The Martin ExperienceWLX, WLXGSUser’s GuidePREMININARY INFORMATIONAll material © 2007. Martin Audio Ltd. Subject to change without notice.

4 x WLX + 8 x W8LC mixed array for orchestral applications using Connector Brackets – ViewPoint™ Rigging View Stacked WLXs or WLXGSs WLX or WLX

Stacked system alignment A stacked subwoofer system should be placed directly beneath the main system with the subwoofer and main system grille

WLX sub-woofers may be time aligned without test gear as follows: 1) Start with the controller outputs delays set as per the above table 2) Use

overpowered models - with suitably set controller limiters - without risking uncontrolled power bursts. The MA series power amplifiers’ regulated po

have been checked and controllers have been set to suit the power amplifiers to be used. Music should be used to check that controllers are receivin

Symmetrically coupled 2-wide columns show a slight improvement in mid-bass amplitude and polar response - but the effect becomes insignificant in

Array Approx Boost Horizontal Vertical (wrt single unit) coverage coverage - Wide Wide +12dB Wide Narrow

Coverage angle for tightly packed flat fronted arrays -6dB Coverage Here is a simplified formula for calculating the main coverage angle of a

The medium sized array (left) has significant output to ±90º whereas the large array’s ±90º output is dramatically reduced. A note on coverage n

For instance, an 8 high ground-based stack of WLX/WLXGS subwoofers will act like the top half of a 16 high stack. It is possible to reach higher

Wavefront WLX and WLXGS Hybrid™ Subwoofer Preliminary information Introduction The powerful WLX Hybrid™ subwoofer is designed to complement Wave

Again, a flexible side wall may absorb sound at certain low frequencies. Boundaries should always be treated with caution. Spacing It is po

Far field polar patterns can be quite complicated - even for a simple pair of subwoofers driven in unison. Wide spacing will cause off axis ir

Horizontal splays Splaying WLX/WLXGS arrays horizontally will widen their mid-bass coverage. The following sketch shows an 8 wide x 3 high WLX

Stacked WLX/WLXGS application examples The following sketches show how WLX/WLXGS arrays may be deployed for a wide range of productions and types

(3) WLX/WLXGS set-up for very high power dance/rock production in narrow arena Gives narrow horizontal & vertical coverage up to 120Hz - al

(5) Alternative set-up for wide venues Splayed WLX/WLXGS arrays for wide horizontal coverage. Example 5 shows a set-up for a TV shoot in a si

Island stages (not shown) Island stages are simply four-sided versions of examples 3 and 5 and should be aligned using the same process. Tutori

Addition & Subtraction The above shows how two pairs of sine waves (with identical amplitude and frequency characteristics) will sum.

Polar variations with frequency Whether particular frequency components add or subtract in the far field will depend on the loudspeaker system sp

These lobes could cause low frequency feedback problems on stage with the high microphone gains used for orchestral low string (cello, double ba

A combined WLX/W8LM grid (ASF20003 – not shown) has been designed to enable W8LM miniature line array elements to be flown beneath standard WLX sub

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 cover

Listeners in the 60º zone will hear the note at a reduced level and may be more aware of room reverberation because the direct-to-reverberation rat

Note that it is important to keep the subwoofers tightly packed to avoid polar anomolies caused by spacing. Procedure The normal procedure i

The following delay line taps would be required for the above system: t0 = 0ms t1 = 0.83mS t2 = 1.66mS t3 = 2.49mS t4 = 3.32mS t5 = 4.15mS t

Pin-outs and cabling WLX Input NL8 WLX -1 Driver – (& link -1) +1 Driver + (& link +1) -2 Driver – (& lin

Cable and panel connector part numbers Please note the following part numbers when ordering loudspeaker connectors to make up cables and patch pane

Sub-woofer crossover and alignment Crossover frequencies The original factory controller settings for W8L, W8LC and W8LM systems are intended for

W8LM presets include the WLX sub-woofer so they have two (mono) or four (stereo) unlocked delays. The WLX channel defaults to zero because the WLX

Main to sub-woofer delays Reference settings The following table shows system delays to align various combinations of W8L Series main and sub-woof

In all cases, set the main (W8L, W8LC or W8LM) and sub-woofer controller output parameters as follows, making sure that controller inputs are initia