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The SPA intercom series is the standard by which all others are judged.
| Number of Channels | 4 |
| Additional Features | Voice Operated Transmission |
| Water Resistance Level | Not Water Resistant |
| Compatible Devices | General Aviation headsets |
| Item Weight | 4.5 ounces (127.58 grams) |
| Brand | Sigtronics |
| Model Number | SPA-400 |
| Built-In Media | jack kit and pre-wired harness |
| Manufacturer | Sigtronics |
| UPC | 684704761841 |
| Mfr Part Number | SPA-400 |
| Special Feature | Voice Operated Transmission |
| Included Components | jack kit and pre-wired harness |
jack kit and pre-wired harness
Ideal for private pilots needing effective communication during flight with up to four headsets connected.
Perfect for flight schools that require a reliable intercom for student-pilot communication during training sessions.
Great for aviation enthusiasts who want clear communication while enjoying flights with friends or family.
May not meet the advanced communication needs of commercial pilots requiring higher functionality and integration.
Introducing the Sigtronics SPA400 4-Place Intercom - the intercom system that set the standard for aviation communication. Since 1974, Sigtronics has been leading the way in voice-activated intercom technology, and their SPA-400/600 series continues to deliver exceptional value and performance. With FAA TSO approval for both 4 and 6 place configurations, you can trust that this intercom is built to meet the highest standards of quality and reliability.
What sets the SPA intercom series apart from the competition is its fail-safe features. Even if the intercom is turned off, pilots can still hear the radio, ensuring clear and uninterrupted communication. Additionally, radio priority functionality ensures that air traffic control only hears the crew member who is transmitting, eliminating any confusion or interference.
One of the standout features of the SPA400 is its individual mic bias capability. Unlike other intercom systems that share one mic line for all headsets, the SPA400 allows you to use different brands of headsets without any power issues. Each headset can draw the necessary power independently, so you won't have any compatibility or performance problems.
Say goodbye to frustrating headset limitations and enjoy the freedom to choose the headset that works best for you. The compact size of the SPA400 makes it incredibly versatile for any cockpit. Whether you prefer a rectangular (horizontal or vertical) or circular faceplate mounting configuration, this intercom system will fit seamlessly into even the tightest panels.
With a panel size of just 2.5 x 1 inches, you'll have no trouble finding the perfect spot for it. Plus, installation is a breeze with the included jack kit and pre-wired harness. If you fly in a high-noise environment, the SPA-400N/600N series is specifically designed to meet your needs.
FAA TSO approved for use in experimental aircraft, ultralights, warbirds, helicopters, and other high-noise aircraft, this intercom is built to perform in even the most challenging conditions. Improve your in-flight communication with the Sigtronics SPA400 4-Place Intercom. With its impressive features, high-quality construction, and FAA TSO approval, this intercom system is the ideal choice for online sellers and e-commerce businesses.
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SPA400 4-Place Intercom offers seamless communication for up to four users with its impressive voice-operated transmission feature, ensuring crystal clear audio in your headphones. Users appreciate its easy installation process, with one reviewer noting the straightforward transition from an old model, making it a hassle-free upgrade. This intercom, made by Sigtronics, weighs only 4.5 ounces, enhancing portability, and is designed specifically for general aviation headsets. Notably, it provides a comprehensive installation kit, which includes a jack kit and pre-wired harness, facilitating a simple setup. Many users have praised its excellent performance and clarity, making it a go-to choice for aviation enthusiasts.
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