1600 Watt Dual 15-inch Subwoofer with current-enhancing Switch Mode technology.

The EX 2.5 is a very high output active subwoofer system. Through the use of proprietary amplifier technology, precision manufactured, high-tech woofer designs and the innovative implementation of a high efficiency, twin chamber acoustic design, the EX 2.5 delivers tight, fast, controlled bass response at very high levels. It falls directly out of KV2 Audio’s philosophy to develop products with increased dynamic range, very high output and a consistent sound character no matter what the output level. The system establishes new performance standards for a compact subwoofer that can only be achieved through the integration of new amplifier, transducer and electronic control technologies that are closely tied to a passion for taking performance to the next level.

The EX2.5 can be used in a variety of system applications. It can add high performance bass reproduction to active speaker systems, or it can be easily used withe speaker systems. The built in electronic high pass filter, phase and independent output level controls provide high precision, easy to use system integration circuitry. On-board controls can also be defeated allowing the EX 2.5 to be driven by third party speaker management systems.

APPLICATIONS

• Small to medium-sized Live and Playback Applications
• Portable PA Systems for speech and multimedia playback
• Mobile DJ
• Fixed Installations

Features

• Active high output, double 15-inch, bass module
• 1600 Watt High-efficiency amplifier featuring current-enhancing switch mode technology with linear active filter
• High efficiency acoustic design delivers over 134dB of output
• Complete, on-board subwoofer management including equalization, crossover filters, amplifier overdrive protection, output level and phase controls
• Mono inputs with through signal outputs and high pass output
• Two 15-inch, high output, high efficiency low frequency drivers with 4.00” (100mm) polymide, high temperature voice coil assembly and carbon fiber reinforced cone assemblies
• Professional, Baltic birch construction with highly resistant polymer coating
• Eight custom corner handles for simplified handling and carrying
• Acetal copolymer high impact, low friction feet are located on two sides allowing vertical or horizontal system set up, lock-in and easy cabinet movement
• Six internal corner braces with twelve M10 suspension points
• Top hat for pole insertion and speaker placement
• LED indicators for signal present, limiter, thermal condition and power ON status

Electronics
Amplifier power, electronic crossovers, equalization and speaker protection are integrated into the EX 2.5’s amplifier module. On-board electronics ensures fast, easy set up, complete control making it easy to set up and long term reliability. An improved version of KV2 Audio’s switch mode, current enhancing low frequency amplifier has been specially developed for the EX 2.5. The new design improves overall system efficiency to over 90% and delivers 1600 watts of continuous power.

KV2 Audio has developed an amplifier topology that delivers two unique characteristics that are critically important for high performance, active subwoofer systems. The EX 2.5 amplifier topology delivers very high efficiency and generates minimal thermal losses allowing the amplifier to deliver extremely high power levels reliably and simplifying the cooling system. Secondly, in order to reproduce low frequency information with high transient levels and extend the operational boundaries of the acoustic design, the amplifier needs to deliver an extraordinary amount of current in order to maintain the woofer under control. This is especially true under standard “phase shift” conditions in which the amount of total voltage the amplifier can deliver is limited and the current requirement is sometimes doubled. Through the implementation of a unique, switch mode amplifier technology, the EX 2.5 amplifier delivers on both objectives, providing extremely high efficiency, low losses and delivering the highest woofer control by delivering higher current levels under “phase shift” conditions.

The electronics are fitted onto to a large format aluminum alloy heat sink providing high flow, passive cooling and eliminating standard maintenance cycles associated with forced cooled amplifier designs. The entire mechanical assembly is fitted on a mechanical suspension system that isolates low frequency energy and ensures long-term reliability. The large format flat aluminum heat sink does not require the use of fins and can be placed in any vertical or horizontal position.

Acoustic Components
The EX 2.2’s woofer technology is based around high efficiency woofer designs. The devices feature, high temperature polymide voice coil assemblies that undergo multiple baking and curing processes as well as advanced magnetic structures with complex cooling systems. The woofer cones have been specially developed to withstand the demanding environment created by the high loading inside the EX 2.2.

The EX 2.2 was designed using new concepts in twin asymmetrical acoustic chambers that deliver very high speaker loading and output from a relatively small cabinet footprint. It is ideal for use in live applications that require reproduction of low frequencies with very high transient content at high output levels.

Enclosure Design
The EX 2.5 is a lightweight enclosure featuring a number of ergonomically designed parts that make it an easy system to set up and use. KV2 designed and tooled a new very compact “corner handle” that fits snugly into any 90 degree corner. This provides critical pick-up and handle locations previously unavailable. There are eight corner handles that make it easy to pick up and reposition the ES 2.5 in a natural, instinctive manner. Routed “foot” cutouts allow easy stacking.

There are eight industrial grade, internal braces placed at the top of the cabinet. Each brace is held in place by four M8 bolts and feature sixteen M10 hang points providing a wide range of installation and suspension flexibility. There is also a pole mount “top hat” located at the top of the cabinet.