The user interface of the new Scaling Surfaces tool for TiMax SoundHub.
New tool designed to allow users to re-scale a spatial show file from a studio playback environment to an auditorium with two mouse clicks.
TiMax has announced the expansion of the capabilities of its SoundHub platform with a new tool named Scaling Surfaces, designed to allow users to re-scale a spatial show file from a studio playback environment to an auditorium with two mouse clicks.
Users can re-scale their show for a new venue by changing the Scaling Surface size, shape, and height, and they can do this at any time. When an object is attached to a Scaling Surface, and that surface is moved, all spatial positioning and movement automation for that object, across the entire show file, moves with it.
Users can also distribute content without knowing the absolute scale of the playback environment or system, enhancing flexibility. They can also utilize more than one Scaling Surface in a file – for example, to cover a “stage” and “auditorium” area, where the two Scaling Surfaces needed to be resized separately.
Integrated into the PanSpace window, between Image Definition and Spatialisation workflow elements, Scaling Surfaces is designed to provide time savings within the audio rendering workflow. It offers a familiar interface; with eight drag handles and direct manipulation controls, users can resize, reshape, and reposition spatial surfaces just as they would an image in a photo editor.
Scaling Surfaces requires TiMax SoundHub version 6.10 or later and is showcased at the new TiMax Spatial Studios in Tileyard, London. Go here to try it.
JAPAN:The Expo Arena Matsuri outdoor venue at the Osaka Expo has been outfitted with Martin Audio sound systems, provided by Audiobrains and System Engineering. Serving as the largest outdoor hub at the Osaka site, the outdoor location has capacity for approximately 16,000 people and is hosting a variety of events, including international music shows, Yosakoi festivals and traditional Bon Odori dance performances.
System Engineering was responsible for designing and installing the system. Mr Goto, a member of the company’s sales team, said they had heard Martin Audio during various listening sessions, building trust with the brand. “For this expo, we needed to place importance on cost in addition to sound quality and performance, so we chose Martin Audio as our candidate because of its cost benefits,” he explained. “The acoustic simulation was also provided to us very quickly for when we proposed the system to the Expo Association.”
WPL-PU units from the Wavefront Precision line array (WPL) series serve as the main PA system for the vast arena space. These are complemented in the lower frequencies by 20 SXH218 subwoofers installed under the stage, with WPS-B-MAR cabinets deployed onstage for in fill. Side fills are covered by WPS-B-MAR units combined with SXCF118 cabinets installed on the wings of the stage. Monitoring is courtesy of XE300 loudspeakers and FP8 boxes for the FOH monitor. All speakers are powered by the iK42 DSP-equipped amplifier.
L–R: Mr Kawachi, Mr Goto and Mr Hashimoto of System Engineering
According to Mr Kawachi of System Engineering, the original sound design was based on the premise that the structure would be temporary, however, as the arena will be used for a variety of events, the system needed to be able to operate without trouble for six months. “We had to redraw the drawings and work hard to create a system that balanced the temporary and permanent aspects,” he noted.
As the installation is outdoors, a key challenge was trying to prevent the loudspeakers from shaking. “The venue is close to the sea and can face strong winds of up to 10m per second,” noted System Engineering’s Mr Hashimoto who managed the construction of the setup. “In the end, by making good use of the flying metal fittings and the speaker handles, we were able to create a sturdy anti-sway system that would not budge even in strong winds.”
Hashimoto cited the positive aspects of using the Martin Audio system: “In terms of functionality, the ability to finely adjust the directivity is a big plus – the sound really disappears from the area where the attenuation is set. Even though it is such a large-scale system, there were no major problems and after the opening ceremony, we received feedback that the sound was great. We are honoured to have Martin Audio selected for such an international exhibition and will provide full support until the end of the event.”
Vietnam: For dance venues the world over, one of the most coveted accolades is recognition in the prestigious DJ Magazine Top 100 clubs.
Located in the Vietnam capital of Ho Chi Minh City, POC POC Garden first featured in the list the year after Duc Pro Audio fitted a premium Martin Audio sound system, back in March 2023. Now in 2025 it has risen even higher in the rankings of the world’s most important nightclubs.
Located in the heart of District 3, and with an impressive outdoor space and premium stage, the club combines unique artistic performance with high octane dance music.
Faced with a fierce competitive tender against another leading speaker brand, Duc Pro Audio extended its long association with Martin Audio by drawing on the brand’s matchless nightclub pedigree. It has enjoyed consistent presence in superclubs ranging from Ministry of Sound to fabric—the latter recently upgraded with next generation Martin Audio sound.
“AS THE HEIGHT OF THE GLASS INTERIOR IS APPROXIMATELY 8.5 METRES AND THE CAPACITY AROUND 1,100, WE KNEW TORUS WOULD DELIVER EXTREMELY HIGH-QUALITY AUDIO,”
Duc Pro Audio product manager, Pham Duy Quang, never had any doubts that a TORUS constant curvature system would provide the definitive solution for this venue, and its owner, Mr. Chien.
“As the height of the glass interior is approximately 8.5 metres and the capacity around 1,100, we knew TORUS would deliver extremely high-quality audio,” he declared. “The speakers produce a clean sound and combine extremely well with the powerful SXCF118 subwoofer.”
The sound also had to satisfy its many incoming high profile production teams from around the world, since POC POC hosts a wide range of events—from art performances to some of the most highly renowned EDM names in the region, as well as competitive rap events. “The club also welcomes dance crews from Cuba, and has a giant water tank with daily mermaid performances and many other spectacular visuals that make use of a huge ceiling hoist system. TORUS handles it all effortlessly, and delivers an impressive performance,” says Mr. Quang.
Inspired audio design was critical to this success. Duc Pro Audio have arranged the main PA in four flown columns, hanging above the stage and DJ booth—single L/R columns flanking a centre hang of two. This centre array is made up of three T1215 and a pair of SXCF118 subs, whilethe outhangs comprise three T1215. A further four columns are suspended in front of the stage over the audience, and delayed—each comprising a pair of T1215 and a single T1230.
For front fill, eight further T1215 are placed along the front of the stage facing the audience, while the all-important sub frequency rumble is extended via eight Martin Audio SXH218, set under the stage front.
Mr. Chien is a well-known investor in Ho Chi Minh City’s nightlife, and he expressed unqualified satisfaction with TORUS. “As such, he will continue to trust Duc Pro Audio and Martin Audio in future projects,” states Pham Duy Quang confidently.
Added Martin Audio marketing director, James King, “We are proud once again to have key representation in DJ Magazine’s list of globally famous dance venues. We have a long and distinguished heritage in equipping venues and global EDM events alike with our premium sound systems. We are grateful to our partners in Vietnam for their continued faith in our world-beating solutions.”
UK: Martin Audio has joined forces with fellow Focusrite Pro brands TiMax and Linea Research, in the futuristic new Spatial Studios at London’s Tileyard. This new audio hub, one of several suites, provides a conveniently based showroom, training and R&D Centre for advanced sound designers at the fashionable Kings Cross development area.
TiMax will show off its unique spatial audio and show control capabilities by partnering with Martin Audio’s popular FlexPoint coaxial point source series, designed for shorter throw deployment such as intimate studios. The deployment includes 14 of the diminutive yet highly effective FP4, through multiples of the FP6, FP8 and FP12. Low frequencies are reproduced through four visually unobtrusive SX110 subwoofers and an SX210.
Providing the magic in this state of the art 26.4.6 TiMax suite is TiMax SoundHub. In addition, TiMax Tracker D4 is installed with an eight-sensor system, and the studio also offers opportunities to work with TiMax panLab, as well being configured as a 9.1.6 Dolby Atmos studio. Amplification is delivered via Linea Research 88C06 amplifiers with FlexPoint presets loaded.
Marketing director, James King, said, “This gives us a unique opportunity to showcase three of our flagship brands, working synergistically in an immersive environment. This combination enables designers to create, design and deploy spatial audio content. At the same time the space is available for training and education, demonstration, networking, showcases, panel discussions and much more besides.”
When you’re competing with Friday night plans, you need more than just popcorn and a projector—you need an experience. That’s exactly what Studio 35 Cinema & Drafthouse delivers, and their latest audio upgrade proves it. With a new sound system powered by LEA Professional amplifiers, this iconic cinema is taking its AV game to the next level.
Studio 35 Cinema & Drafthouse, nestled in Columbus, Ohio’s Clintonville neighborhood, has been a local staple since its debut as the Indianola Theatre in 1938. In the 1970s, it made history as the first U.S. cinema to serve beer and food, becoming a pioneer in the dine-in movie experience. Over the decades, it’s evolved with the times—hosting cult classics, beer tastings, live sports, and community events. A major renovation in 2012 introduced a full bar with 40 taps and a refreshed interior. Studio 35 remains proudly independent and family-owned, continuing to blend blockbuster appeal with neighborhood charm.
THE INSTALL
Studio 35 contacted its longtime technology partner Brian Vita, Sales & Service Manager at Total Cinema Solutions, for recommendations on audio system upgrades. Vita immediately included LEA Professional amplifiers as part of the new system design.
“The best definition of an amplifier I’ve heard is that ‘it’s a piece of wire with gain and nothing else,’” said Vita. “And that’s basically what LEA amplifiers perform as. They’re pieces of wire with gain that don’t add any noise to the signal. I mean that as a high compliment.”
The new audio system is built around a state-of-the-art Trinnov Ovation2 cinema processor, greatly enhancing the movie-going experience at Studio 35. The unofficial project goal is to “rattle the shingles of the building next door.” JBL 4732 three-way ScreenArray loudspeakers are the mains, supported by two JBL 4642A subwoofers and several JBL 9310 surround loudspeakers.
Vita deployed Connect Series 704 amplifiers to power the theater’s speakers. The IoT-enabled 4-channel 704 provides 700 watts per channel, supports Hi-Z (70V or 100V) and Lo-Z selectable by channel, and features Smart Power Bridge technology. Unlocking the full potential of the speakers right out of the box, Connect Series amps deliver optimized speaker tunings that ensure every note is heard with clarity and precision throughout the theater.
“The built-in speaker tunings in the LEA amps were great for this application, as was the ability to monitor (the amps) remotely,” said Vita. “That level of control, monitoring and processing made the choice of amplifier easy and clear-cut for us.”
CS704
THE CONCLUSION
With the success of the recent upgrades at Studio 35, the owners are now looking ahead—exploring similar enhancements for their other theaters. It’s a clear sign that delivering high-quality, immersive experiences isn’t just a one-time investment, but a long-term commitment to their audiences and the communities they serve.
Exacting Diseno Technical Services Relies on Martin Audio to Deliver A Premium Sonic Ambience at Dubai’s Coco Grill & Lounge
Exacting Diseno Technical Services, helmed by Lou Agha, continues to strengthen its reputation for high-quality installations in Dubai’s luxury hospitality sector with the deployment of a premium Martin Audio sound system at Coco Grill & Lounge. Developed in partnership with regional distributor PRO LAB, the installation supports a unique concept from venue owner Naz Choudhury — a fusion of upscale Shisha Lounge and Dubai’s first Redemption Bar, offering alcohol-free sophistication with an emphasis on immersive experiences.
Coco Grill & Lounge is the Dubai extension of Choudhury’s original concept in London, which overlooks Tower Bridge. The new downtown location offers similarly spectacular views — this time of the iconic Burj Khalifa — and continues the brand’s ethos of high-end hospitality paired with rich musical atmospheres. When asked about audio preferences, Choudhury was immediately drawn to Martin Audio, having used the brand in his London venue.
Agha began the project with a demonstration at PRO LAB, showcasing various Martin Audio options including CDD models and FlexPoint systems. “We started with the small FP, and he was amazed by the sound quality,” recalled Agha. This led to a customised system design tailored for the venue’s low ceilings, mixed-use layout and live performance requirements.
Agha began the project with a demonstration at PRO LAB, showcasing various Martin Audio options including CDD models and FlexPoint systems
The interior zones are served by Martin Audio CDD6 speakers, while the venue’s expansive outdoor areas — blending shisha service with DJ sets and live acoustic music — feature 14 units of the Blackline X8 loudspeakers supported by six SX112 subwoofers. The entire system is networked via a Dante backbone and spread across nine independent zones. The design also integrates six refurbished ADORN A55 speakers, supplemented by additional units at the venue’s entrance, where a pair of A55 and an SX110 subwoofer create a warm welcome.
As patrons pass through to the Dome area, they’re immersed in sound via six FlexPoint FP8 speakers and four SX112 subwoofers. Even the venue’s restrooms aren’t overlooked — ADORN ACS 40TS ultra-compact ceiling speakers deliver refined background music at 16 ohms, maintaining acoustic consistency throughout.
The non-smoking lounge areas feature dedicated soundscapes: one zone includes four CDD6 and two SX110 subwoofers, while another utilises six CDD6 with two SX110 units. The smoking areas are similarly equipped, ranging from two to four CDD6 units per section, supported by appropriately scaled SX110 subwoofers. One of these sections, Smoking Area 3, is also available for private rental, necessitating a discrete yet powerful setup of four CDD6 and two SX110 units.
The entire system is networked via a Dante backbone and spread across nine independent zones
“In order not to intrude on the lounge’s aesthetic, the subwoofers are placed discreetly,” noted Agha. “I used the SX110 rather than the SX210 because of space constraints — I couldn’t put the SX210 on its side, so I separated them into pairs of SX110s.”
By day, the venue operates with a curated Spotify playlist programmed by Coco’s DJs, with selections favouring Afro Beats to maintain a unified sonic identity across both the London and Dubai locations. Audio routing and DSP are handled by a Xilica FR1 processor, ensuring seamless zone control and sound shaping.
Describing itself as a venue that “redefines sophistication,” Coco delivers on that promise not only through its culinary and visual elements, but also through the detail and depth of its sound — made possible by a Martin Audio system meticulously tuned to elevate every facet of the guest experience.
UK: Martin Audio partner, Penguin Media Solutions, recently completed the third technical overhaul of pubs in the burgeoning 50-plus Laine Pub Company estate—within a short period.
Both organisations are HQ’d in Brighton, and Penguin’s Technical Project Manager Dylan Thompson says that since all three city centre pubs have their own identity and autonomy an individual approach was required when it came to specifying audio. Fortunately, Martin Audio’s extensive portfolio afforded different options.
Penguin’s latest implementation was the Black Lion, a popular music pub nestled in Brighton’s famous Lanes. The client required better traffic flow to draw its clientele towards the rear of the room—where the intensity would increase—and avoid the current pinch point at the front. “The previous design was a bit lazy, with lots of mismatched 8in boxes scattered around and a sub that wasn’t doing much. It all sounded a bit samey and thin, and we were asked to give it personality.”
Placing both the acoustic and visual focus on the DJ, Penguin designed a new cast concrete booth, equipping the compact domain with a Blackline X12 as reference monitor and powerful SX215 subwoofer on anti-vibration mounts.
Either side are now a pair of Martin Audio FlexPoint FP12s and eight Blackline X8 for general room fill. Explaining his selection Thompson said, “I didn’t want to go much smaller than that because I wanted to keep a nice warm mid-bass running through and we didn’t have many options for sub placement. I really like the whole FlexPoint range, Martin Audio have absolutely smashed that one!”
“THS IS A PERFECT BOX FOR THIS APPLICATION”.
To this he added a pair of Blackline of X210 subs—one flown to place it in the required location, and another under the banquette seating at the front—all driven by two sister brand Linea Research 88C10 amps. Sound is routed via an existing Soundweb venue matrix, with DSP handled within the Linea environment.
Another of Martin Audio’s sister brands, Optimal Audio, comes into play outdoors where 16 Cuboid 3T (with IP kit) are installed—described by Dylan Thompson as “great little boxes.”
The entire venue is then controlled via Penguin’s bespoke app, developed in-house. “By using third party control with a web app—and not platform specific—the supervisor, manager and DJs can control the lighting. There is a little tablet in the booth to trigger the presets, and levels and source for each zone can be controlled for on the same app.”
This was part of a larger project in which the integrators designed and installed pixel lighting—industrial looking tubes behind and above the DJ, with flush plastered profiles for the arches, and recessed profiles for wall washing.
Less than a year earlier Penguin Media Systems had carried out their first installation contract for Laine, after being recommended. This was The Hope & Ruin, described as a much-loved grassroots live music venue, known for championing new bands. Penguin’s recommendation was the super-powerful Martin THS 15in triaxial point source speaker, and pair of SX215 subwoofers now feature at the front of the stage … replacing an ageing system that had become unreliable. At the same time they provided the venue with four LE100 artist reference monitors.
“THS is a perfect box for this application,” believes Thompson. “Because it doesn’t take up much room visually, they now have better sightlines.”
Having passed their induction, Penguin were then offered the Dead Wax Social, another city centre. pub that’s a modern re-take on an audiophile’s dream. Here Dylan Thompson made the inspired decision to roam quirkily off grid, specifying a pair of Martin Audio Screen 4s, originally designed as a cinema system, in newly fabricated custom flying frames.
His rationale in recreating a 70’s listening bar theme was entirely logical, as he explained. “We played about with them and did a bit of voicing change to suit the creative brief and aesthetic from Rob Hall at Laine; we also turned them horizontally in their new frames to make them look even more eye-catching as well as gaining space.” He also painted the baffles, and in their new hammered green finish, the speakers have now become a visual focal point as well.
Laines Pub Co MD, Russ Danks was delighted with the recent upgrades and their impact with their young and vibrant guests. “Penguin’s choice of different Martin Audio sound systems has totally energised these pubs. At Laine we are driven by re-imagining our spaces for a younger generation, and all those that share the spirit and energy of youth, The content in our businesses, whether DJ led, vinyl, bands or drag artists, need to sound bloody good, and Dylan and the team at Penguin help us nail this every time.”
From local school events to national music tours, the Curtis Culwell Center has long been a hub of culture and connection in the Dallas area. Now, with LEA Professional amplifiers installed, every moment—big or small—gets the sound quality it deserves.
Product Used: Connect Series 354, 704 and 1504 (13)
Curtis Culwell Center
The Curtis Culwell Center is a beautiful, state-of-the-art multi-purpose facility boasting over 190,000 square feet of space, including an arena and conference center. The facility was designed by HKS, Inc., one of the nation’s leading architectural firms behind venues like the American Airlines Center, Choctaw Stadium, Bass Performing Arts Center, and more.
THE INSTALL
After 20 years of operation, some of the original audio infrastructure began to fail. Individual devices were replaced to keep the system functioning, but the school district recognized they needed a more comprehensive equipment overhaul to ensure reliability for crucial public address functions. Culwell Center staff contacted Ron Stanley, Proprietor of NX A/V, with whom they had a long-standing relationship for audio systems support, to recommend system upgrades. Stanley immediately included LEA Professional amplifiers as part of the retrofit.
“Recently, I was trying to decide on what our go-to amp was going to be moving forward, so I brought in several amps for a shootout,” said Stanley. “LEA was the winner, not just for the sound quality but feature set as well.”
Stanley’s team installed five Connect Series 354, four Connect Series 704, and four Connect Series 1504 amplifiers to power the venue’s public address system. The CS354 is a 4-channel amplifier with 350 watts per channel, while the 4-channel CS704 offers 700 watts per channel, and the 4-channel CS1504 provides 1500 watts per channel. All Connect Series amplifiers are professional-grade IoT-enabled smart amplifiers for any size installation, support Hi-Z (70V or 100V) and Lo-Z selectable by channel, and feature Smart Power Bridge technology.
The Connect Series delivers an industry-first professional amplifier family to feature cloud connectivity, a revolutionary advancement and a significant benefit for anyone maintaining the systems. With LEA Cloud, AV teams can remotely control and monitor the amplifiers regardless of the location or time of day, and with no subscription model or hidden costs, it’s completely free to use.
Stanley remarked, “With the cloud registered amps, we, as well as registered venue staff, can get notification of events and faults, like a speaker circuit that is over or under the expected impedance that could indicate a blown speaker or broken wire, often before anyone in the venue actually notices.”
CS1504
CS354
CS704
CS1504
CS354
THE CONCLUSION
Given the smaller form factor of the LEA amplifiers, Stanley was able to consolidate five racks of amplifiers into two, thereby significantly reducing space without losing any functionality.
“The built-in speaker tunings in the LEA amps were great for this application, as was the impedance monitoring,” said Stanley. “With the upcoming graduations, the system has to work error-free, and LEA amps fit the bill perfectly.”
UAE: Lou Agha’s system integration company, Exacting Diseno Technical Services, are fast gaining a reputation for installing premium Martin Audio sound systems in some of Dubai’s smartest upmarket bars and lounges.
Working closely with territorial distributors, PRO LAB they recently equipped Coco Grill & Lounge for owner Naz Choudhury, whose unique concept is to integrate a Shisha Lounge with Dubai’s first Redemption Bar. It follows the operator’s initial launch of the Coco brand in London, overlooking Tower Bridge—and offers the same breathtaking views from its downtown location, this time of the Burj Khalifa. All operations are alcohol-free, with upscale mocktail bars.
Lou Agha had been introduced to the project via a consultant. “When the client asked what sound systems I used, he was pleased it was Martin Audio, as this was the brand he was using in London.”
Agha first arranged a demo at PRO LAB of various CDDs (up to 8in) and FlexPoint. “We started with the small FP, and he was amazed by the sound quality.” He then quoted in various configurations, recommending CDD6 for the venue’s low-ceilinged interior and 14 punchy Blackline X8 for outdoors which combines Shisha Lounge with DJ and small combo live acoustic music, with vocalists, in a non-stop entertainment package.
The unit is divided into nine separate zones—all networked on a Dante backbone. The 14 Blackline X8 are complemented by six Martin Audio SX112, while six pre-existing ADORN A55 have been refurbished and added—four on one side two on the other.
At the entrance another pair of ADORN A55 and single SX110 sub beckon customers in, and as they enter the Dome, they are greeted by six FlexPoint FP8 speakers, with four SX112 subs.
“Inside the client wanted high quality music io be extended to the toilets,” continues Lou Agha, “so we have ADORN ACS 40TS ultra-compact ceiling speakers running at 16 ohms. That way they sound really nice.”
The lounge features two non-smoking areas: one contains four CDD6 and two SX110. While the other has six CDD6 and two SX110. In Smoking Area 1, are a further four CDD6 and two SX110; Smoking Area 2 has two further CDD6 and a single SX110, and Smoking Area 3—which can also be rented for private occupancy—is equipped with four CDD6 and two SX110.”
Lou Agha says that in order not to intrude on the general aesthetic of the lounge, the subwoofers are placed discreetly. “I used the SX110 rather than the SX210 because of space constraints,” he says. “For that reason I couldn’t put the SX210 on its side, so I separated them into pairs of the SX110.” By day the venue’s background music operates off a Spotify playlist, common to both London and Dubai—programmed by one of their DJs, with a theme heavily weighted towards the popular Afro Beats. Routing and DSP are under the management of a Xilica FR1.
On Coco’s website, the venue boasts that “from 24-hour upscale dining to theatrical culinary experiences and late-night lounging, Coco redefines sophistication.” And thanks to its sophisticated sound system, delivering a high-octane musical experience, it certainly lives up to this promise.
Australia: Dating back to 1824, St. John’s Anglican church in Launceston, Tasmania is the oldest church in the city, having recently celebrated its 200th anniversary. To mark the bicentennial the church committee commissioned a major upgrade, largely to enhance speech intelligibility. GUZ BOX design + audio, headed by founder Tim Kuschel, were tasked with overseeing the acoustic and electroacoustic design works.
This was back in 2020, but hampered by COVID restrictions and a lack of data, it wasn’t until March 2021, in the post-COVID era, that the Canberra-based consultant fully realised the overwhelming number of architectural constraints he would be facing in this heritage-listed building—not least the demanding acoustics, with multiple reflections created by a 22m-high dome.
The reason intelligibility was such a concern was because a large proportion of the congregants are elderly worshippers, struggling to understand spoken word services. The existing speaker system simply did not meet the requirements, as it consisted of too many non-compatible enclosures, randomly installed as new extensions had been added over time.
But speech wasn’t the only consideration as St John’s also hosts more contemporary music for its youth services—as well as orchestral and pipe organ recitals.
After evaluation, Tim Kuschel’s upgrade solution to provide enhanced coverage in the sanctuary, platform and presentation areas, came down in favour of Martin Audio’s multi-award-winning O-Line modular micro-array set-up, with scalable resolution. “This offered the most consistent results across the seating areas,” he rationalised. “With its compact form factor, O-Line excels in houses of worship where speech intelligibility is the primary function.”
GUZ BOX had arrived at this solution only after conducting extensive acoustic measurements using EASE software, to ensure that the loudspeaker energy was focused on the main church seating areas, and that the sound would operate within the full frequency range for speech and music, setting a desired Speech Transmission Index (STI) and other key parameters.
WITH ITS COMPACT FORM FACTOR, O-LINE EXCELS IN HOUSES OF WORSHIP WHERE SPEECH INTELLIGIBILITY IS THE PRIMARY FUNCTION.
He built a model in AutoCAD, converted it into a virtual acoustic model using AFMG’s EASE version 5 and correlated the physical measurements with the EASE model. He also worked closely with Cumulus Studio by proposing an extensive acoustic works treatment programme, including ceiling absorbers and wall treatments.
Working closely with Martin Audio distributor Technical Audio Group (TAG), he detailed two hangs of 16 Martin Audio O-Line elements.
For the ability to reproduce music, however, he recognised that additional subwoofers would be required. Thus low-end extension is provided by six of Martin Audio’s SX110 10in direct radiating sub bass arrays, equally spaced across the front of the stage under the main platform. Each was individually amplified and processed to optimise steering.
However, the installation was not without its challenges. Unable to suspend the main arrays from the 22m-high concrete dome—due to it being 16m higher than the optimum speaker placement—in order to achieve optimum coverage, in line with the modelling prediction the top speaker of each hang was suspended 6m above the sanctuary floor. This required customised speaker brackets to be fabricated, to extend the distance of the arrays from the wall. The 16 pairs of loudspeaker cable were also concealed within the mounting bracket. “It was a pretty neat solution all round,” reasoned the consultant. “The installer did a great job with this.”
Tim Kuschel turned to Martin Audio’s proprietary DISPLAY 2software, deploying the ‘Hard Avoid’ feature largely to avoid spill back onto the stage/platform area. In this case, single-element resolution was used for optimised coverage over the audience area.
Other infill speakers have been strategically placed including several Martin Audio CDD6 and CDD5’s, which have been fixed in the side chapel and chancel/choir stalls on ball and ceiling brackets. These were chosen for directional characteristics and form factor.
As for aesthetics, the O-Line elements (and other Martin Audio loudspeakers) were installed in standard colour finish, however all other fixings including cable-runs in conduit were colour-matched where possible to satisfy heritage requirements.
Other project considerations included independent wireless iPAD control for the clergy, enhanced assistive listening, isolation from other interference and advanced acoustic treatment (as well as carpet absorption). The latter included an aesthetic acoustic treatment of Megasorber C50 50mm sound absorbing panels to approximately two-thirds of the ceiling over the main seating areas.
Tim Kuschel can reflect with satisfaction on a project in which all his goals were met. The reverberant energy over the audience area has been controlled and the new audio system provides a minimum measured STI value of 0.61 from the front row to the last seat of the balcony—with the speech clarity uniformly intelligible throughout. He has ensured intuitive control and management by non-technical staff in whatever mode the system is set up.
He has also struck the right RT60 balance, recording 2.5s of reverberation time, mainly in the mid-frequencies. “The organist demanded reverberant energy in the space, and it was pleasing to note that this has been unaffected by the acoustic works,” he noted. “Crucially, the reflected energy has been controlled and so the performance of singers and musicians is not compromised.”
Installation works were carried out by Tasmania-based Contact Group, while T-Built project manager Joel Taylor coordinated and managed all the onsite contractors and systems integrators.