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Installation Profile: Sound Harbor

Oct 1, 2008 12:00 PM, Story by Trevor Boyer
Photos by Eddie Arrossi

Electrosonic designs and integrates AV and control systems for Maryland’s National Harbor.

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Installed at the harbor plaza, which serves as the concert area, is a pair of line arrays composed of Renkus-Heinz PN102LA-R-WR loudspeakers. These are coupled with dual BP15-2R subwoofers.

Unfortunately, after being installed and up and running, the line arrays were soaked in a downpour during construction. At press time, Renkus-Heinz was upgrading the weather resistency of the line-array loudspeakers as well as improving the protective amplifier enclosures on the back of the loudspeakers.

The National Harbor is using all other aspects of the audio system that Electrosonic has installed, including a portable system for events such as weekly concerts at the harbor plaza. “At the level of concerts that they're doing right now,” Barnes says, “that's working just fine.”

The portable system is a self-contained PA system with a Yamaha front end in the form of an 01V96V2-CA digital portable mixer. There are also two Renkus-Heinz PN151/9-R-WR “loudspeakers on a stick.” This system is racked in a waterproof rollaround enclosure made of high-density plastic. “You can take this rig and go direct to the network, and send a signal out of the portable unit to wherever you want to send it,” Barnes says. “Or it can be its own little standalone unit, so you can come out of it and go analog.”


The primary reason that Electrosonic chose powered loudspeakers for the National Harbor is that there is not enough equipment-room space to house racks of power amps. Equipment is housed in Kiosk C at the harbor plaza, which is essentially the FOH mixing booth for the concert space, and in a single main equipment room. There was not even enough room for patch bays, so Cabolis needed to specify electronics that could perform functions such as analog-to-digital conversion and converting standard audio to CobraNet. This meant relying on either internal switching within equipment, or sending CobraNet signals to the equipment and doing switching on the channels of DSP processors before these signals are retransmitted over the network.

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