Ps Engineering Aircraft Audio Control Systems
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PS Engineering Launches High Performance Audio System

Lenoir City, TN - The long-established leader in general aviation audio control has added to their extensive list of products with the introduction of the PAC24. This audio control panel was designed from the outset as an upgrade/replacement for the popular KMA24 –71, a product manufactured by King Radio. The KMA24-71 was used extensively in dual audio panel installations for high-performance and rotary-wing aircraft. The PAC24 can easily replace these units, while adding utility and performance.

The many of enhancements include; a powerful headset audio amplifier, and high-performance IntelliVox® intercom, dual audio capability in a single box, full duplex mode for wireless operations, and expansion capability with stereo IFE input.

The audio amplifier is capable of providing 120 milliwatts (mW) into general aviation headphones. According to PS Engineering’s founder and president, "We asked helicopter pilots what they needed. They said they wanted more audio punch to get through the cockpit noise. Since they will wear earplugs under their helmets, they need a clean audio signal with lows of energy.

"Also, pilots want clear crew intercommunications and simple operation. That is what IntelliVox® is all about! We have had great success with the IntelliVox® in the loudest environments, from open door helicopters to WWII bombers. The IntelliVox® loves noise!"

Like the KMA24-71, the PAC24 can accommodate 5 transceivers. Besides the powerful

intercommunication functions, the PAC24 incorporates a split mode that will allow a single audio panel to separate two pilots on different transceivers. The pilot can transmit and receive in com 1, while the copilot position will have access to four other radios.

The PAC24 features:

  • Powerful 120 mW headset amplifiers
  • IntelliVox® intercom for 2 to 5 places, expandable to 10
  • Slide in replacement for KMA24-71
  • Split modes
  • Patented Swap mode
  • 5 transceiver capable
  • Dual panel configurable
  • Music input with SoftMute™
  • Dual volume controls (pilot and Copilot/passengers)
  • Full duplex mode for AirCell® interface or other wireless
  • CVR output
  • Optional Internal Recording System
In a dual configuration, the PAC24 uses a digital interface that permits unprecedented control of the radio and intercom configuration. When combined with IntelliPax™ expansion system, the dual PAC24 can be a 14-place system. The IntelliVox® makes conversation seamless for crew and passengers, and can respond to dynamic flight conditions.

A monaural system, the PAC24 can include a music input. SoftMute™ silences music during radio traffic, but allows music other times.

"The KMA24-71 was a popular system in its time, but the industry had progressed since 1978," says Gary Picou, Vice President, "we feel like this product will solve audio problems and add utility to many existing aircraft installations."

The list price for the complete package of PAC24 is $2,395, and an optional digital recording system for aircraft radio is available for $129.95. This stores the last 60 seconds of audio from the radio selected for transmit. The PAC24 has received FAA Certification under TSO C50c and units are now shipping.

Founded in 1985, PS Engineering has become a leading manufacturer of general aviation intercoms and audio control systems. With a network of over 600 dealers worldwide, the company projects continued growth and success in this industry.

Gary Picou
PS Engineering, Inc.
9800 Martel Road
Lenoir City, TN 37772
Phone (865) 988-9800 - FAX (865) 988-6619

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