Opened in 2016, La Sirena bar/restaurant is prominently located on the Plaza Level of the Maritime Hotel in New York’s Chelsea district offers a large bar connecting two dining rooms.

Quickly less than adequate for the venue’s needs, important elements of the system were also damaged by a fire sprinkler flood. The restaurant’s management quickly turned to A/V systems integrator Essential Communications of East Hanover, New Jersey for help.

‘The GM told me, “I need you to get us back up and running, and give us a proposal to replace the whole system to accommodate the expanded needs of the facility”,’ says Essential Communications President, David Schwartz. ‘The amps were fried and there were burn marks everywhere from the shorts.’

While each dining room seats 100, an adjacent outdoor patio accommodates a further 200 patrons. Upstairs are two large event spaces, each with private entrances from street level and a retractable roof for dining al fresco.

‘The challenge was how to get multiple audio programmes distributed to every zone for dining, and distribute different sources to the various spaces for private events,’ Schwartz explains. ‘We decided to go with Dante, which is one reason we chose a Symetrix Radius. But there was no conduit, and we couldn’t open up walls, so we couldn’t run more Cat6.’

La Sirena approved Schwartz’s proposal, which was based on a Symetrix Radius DSP – retaining the existing ceiling speakers, the Essential Communications team replaced all the damaged amplifiers with Ashly NX Series amplifiers, installed a Radius 12x8 DSP with output expanders, and completed the wiring and configuration. But it wasn’t easy. Multiple zones are required to cover all the spaces, and the venue has three head ends at different locations in the building, with an IT closet in the basement.

‘Fortunately, we discovered fibre between two of the head ends and Cat6 spares between the second and third head end,’ Schwartz says. ‘So we created a hybrid distributed Dante system with all new switches, interconnected with fibre. It took a month just to figure out how to distribute everything and get it all talking but now everything works well. We eliminated most of the original 15 Sonos Connect players, keeping four as playback sources for guests to use in each zone.

‘Because every zone had a source switcher and a volume control, and all of that had to live in the main Symetrix Radius DSP at the main head end. The outgoing signal distributed via Dante out to each zone, so in essence, there was a Dante receiver and an analogue amplifier. It took a lot of time to figure out, especially since we couldn’t run new cable.’

Schwartz’s team equipped the main head end with a Symetrix Radius 12x8 EX, a 4 Channel Analog Output Card, and an xOut 12 Output Expander, for a base system of 12x24. The second head end uses an xOut 12, while the third head end uses a Prism 4x4.

‘So it goes from the Dante output to a switch, from the switch to fibre, and then all the way across the facility to another switch that receives the Dante stream, then to the xOut 12 and the Prism 4x4 in different locations, and outputs to amplifiers for each of seven zones,’ Schwartz recounts. ‘Because Dante is low latency, and there’s zero latency over the fiber, there’s no delay even if you have a song playing in opposite ends of the building. That’s my favourite part.

‘The Symetrix Radius, with its Dante implementation, was crucial to building the core and linking multiple units,’ Schwartz says. ‘We’ve had tremendous success with Symetrix. Symetrix offers a variety of DSPs and platforms, so we can choose the right features for the job. That makes working with their equipment really flexible. Symetrix’ technical support is great-and we needed it for this project. They were there for me every step of the way. Symetrix is a good, solid company. I like that they’re focused on audio DSP and doing it really well.’

In the end, the planning and stress were worthwhile: ‘We ploughed through a lot of difficulties but now La Sirena has a system that sounds quite good,’ Schwartz concludes.

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