Product Spotlight – January 2010

Product Spotlight – January 2010


Another solution to the increasingly common problem of overheating in high-density cabinets, the High CFM cabinet option from Middle Atlantic Products can remove heat from DVR and server cabinets quickly and efficiently, allowing security integrators to effectively manage airflow in the rack, and in the equipment room. Cabinets densely populated with servers, NVRs, DVRs and other high-heat generating equipment instantly benefit from the High CFM rear door’s precise heat removal that pushes air up towards the return ducts. Six provided fans are adjustable for placement by the most intense heat sources in the enclosure and up to ten optional fans may be added for up to a total of 3520 CFM of airflow.

Two-in-one (hosting) racks are popular for large venue formats that house a lot of electronic equipment. These racks maximize the use of floor space—they can be positioned back-to-back or lined up against a wall without restricting access to rackmounted equipment. The external rack stays in position while the internal frame slides out and pivots, right or left, for equipment access. Exterior rack features front-to-rear supports to mount power supply. Interior rack has side and rear braces with mounting/looming holes. Platform disengages for easy shop wiring. With a fully welded steel assembly that supports up to 750 pounds, these racks are capable of heavy-duty work.


Atlas Racks 700 Series are available for rack mount equipment installations needing increased weight capacity or extended depths. With standard heights of 35-44RU and with depths of either 25-inch or full 36-inch, 700 series racks offer flexibility through adjustable rack rails and gangable design for multi rack applications and durability in a sturdy 14 gauge frame construction. In addition to a full line of accessories including multiple door options, fan panels, and caster kits, the UL listed 700 series racks are now seismic certified in accordance with the Telcordia NEBS GR-63-CORE standard. When the SBK- 700 brackets are properly installed, the 700 series successfully endured the real-world dynamic test and are able to withstand up to a zone four earthquake, which is comparable to an 8.0 magnitude on the Richter scale.

JBL VT4883
JBL Professional’s VT4883 cardioid-arrayable subwoofer incorporates acoustical technologies and purpose-built transducers. The VT4883 subwoofer is optimized for use with the VT4886 line array element, both acoustically and mechanically, in addition to being a suitable complement for other loudspeaker systems in the VERTEC family. This powerful, highly compact subwoofer is equipped with rigid internal bracing in a vented-bandpass enclosure topology to support the high-performance capabilities of its pair of new 2263H-1 12-inch long-excursion Differential Drive low-frequency components. The VT4883 is equipped with reverse-arrayable suspension hardware and an auxiliary input connector on the front grille, making it easily reversible within a group of multiple suspended or ground-stacked cardioid subwoofer arrays.

D.A.S. SUB-18H

The Sub-18H passive bass system from D.A.S. Audio incorporates an 18-inch low frequency transducer mounted as direct radiator into a bass-reflex cabinet. A perforated steel grille is sealed against corrosion using a polyamide powder coat finish. The “H” version is designed for use in biamped systems. A top located pole socket permits mounting full-range systems above the Sub-18H and two bar handles makes moving easy.

WorxAudio Technologies announces the company’s TL1801 subwoofer transducer—now identified as the TL1801A—has been upgraded. Its design features a high temperature Neodymium magnet surrounding an under hung voice coil encased in a low carbon steel structure. The transducer’s architecture enables the cone to have extremely high excursion with the lowest possible distortion and power compression. Weighing 52 pounds, the WorxAudio TL1801A is extremely efficient, and handles an enormous amount of power. The woofer’s Neodymium magnet has greater BL product over conventional ceramic magnets or smaller Neodymium magnets that are commonly utilized in other 18-inch loudspeakers.


Designed as the successor to L-Acoustics’ SB218 subwoofer, the new SB28 brings even more powerful low-frequency impact and improved bass articulation to tours, installations, and corporate productions utilizing KUDO, V-DOSC, dV-DOSC, and ARCS systems. Measuring 21.7 x 51.2 x 27.6 inches and weighing 205 pounds, the 4-ohm SB28 contains two front-loaded, 18-inch direct radiating transducers integrated into a bass-reflex tuned enclosure capable of operating down to 25Hz. These specially designed LF transducers provide exceptional cone excursion combined with low thermal compression, even at the very highest operating levels. Furthermore, the enclosure’s bass-reflex vents feature a progressive profile allowing for truly laminar airflow. These new vents, when paired with the updated transducers, enable the SB28 to offer a huge 5 dB increase in SPL output compared to its predecessor


The Electro-Voice XCS312 is designed for high-level, low-frequency extension to 40 Hz in a cardioid configuration. It uses three DVX3120 forced-air-cooled, 12- inch transducers capable of long, linear excursion and high power handling in a two-channel configuration. XCS312s are designed to be used with a ratio of four XLD281 or XLD291 full-range systems for each XCS312 subwoofer. The XLVC family consists of two full-range line array elements with dual woofers, two full-range line array elements with single woofers and two subwoofer systems. The dual woofer line array element includes the XLD281 with a 120 degree horizontal coverage pattern and the XLD291 with a 90 degree horizontal coverage pattern.


The D12E-DA is a high output INFRA subwoofer system designed to provide high fidelity extended low frequency audio reproduction from a relatively small and low profile enclosure. The D12E-DA provides flat response down to eight Hz when used in conjunction with the 8Hz integrator. Designed primarily for permanent installation, the D12E-DA offers a total height of only 9.125 inches enabling it to fit under platforms and in tight vertical spaces. Standard features include durable black painted finish and a black coated steel grille.


Meyer Sound’s new MM-10 miniature subwoofer delivers expanded low-frequency headroom with the convenience of 48V power for installations. A perfect companion to the MM- 4XP and UP-4XP loudspeakers, the low-distortion MM-10 allows sound designers to create full-range systems for small theatres, background music, portable AV systems, and compact voice reinforcement systems. The MM-10 features an operating frequency range of 40 Hz to 200 Hz with a 123 dB peak SPL. Three different configurations of power and audio connectors provide versatility for installed and portable applications. The MM-10XP model uses an MPS-488 external power supply to deliver balanced audio and 48V of DC power to four MM-10XP subwoofers. Internal power supplies are included in the MM-10AC and MM-10ACX models, with the MM-10ACX offering additional power supply capacity and audio and power connectors to drive two MM-4XPs in a compact 2.1 loudspeaker system.


The WL218-sw is a highperformance, dual 18-inch subwoofer designed for suspended or ground stacked use in the most demanding touring or installed concert applications. With a combination of punch, low-frequency extension and accuracy, the WL218-sw is an ideal companion for QSC’s WideLine as well as other professional sound reinforcement systems. Suspension of the array requires one AF218- sw for each subwoofer array. The AF218-sw is a simple, heavy-duty array frame constructed of welded, aviation-grade 6061-T6 aluminum and intended for suspension of up to eight WL218-sw subwoofers with a 10:1 design factor. For ground-supported applications, the subwoofers may be stacked using the interlocking feet and recess features machined into the enclosure’s end caps.

The AVNetwork staff are storytellers focused on the professional audiovisual and technology industry. Their mission is to keep readers up-to-date on the latest AV/IT industry and product news, emerging trends, and inspiring installations.