SPA-400 Four Place and SPA-600 Six Place Intercoms
- FAA TSO approved.
- Pilot fail safe feature allows pilot to always hear radios.
- Works with all brands of General Aviation headsets.
- Reversible face plate included for vertical or horizontal mounting.
- Radio priority assures that ATC hears only the crew member transmitting.
- Installation hardware included, including jack kit and pre-wired harness.
- WARRANTY: Five years parts and labor.
The Intercom That Set The Standard
Sigtronics pioneered the voice activated intercom market in 1974 and continues to deliver value and performance today in the 4 or 6 place FAA TSO approved SPA-400 / SPA-600 intercom series. With fail safe features that allow pilots to always hear the radio even if the intercom is off, and radio priority that assures ATC only hears the crew member transmitting, the SPA intercom series is the standard by which all others are judged.
Individual Mic Bias Allows The Use of Different Brands of Headsets
General aviation headset microphones draw power from the intercom or radio mic line. Some poorly designed intercom systems hook all the headsets to one mic line so that all the headsets must share the same power. Because different headsets have different power requirements, one headset may draw just enough power to work but there may not be enough power left over for any of the other headsets to function. With this type of design two identical headsets will work most of the time but get different types and models then you will have a problem. The only way to fix this is to modify or replace the intercom system with one that uses separate mic input lines. All Sigtronics intercom systems use separate mic input lines and do not have this problem.
Compact Size
Choose either rectangular (horizontal or vertical) or circular faceplate mounting configuration to fit anywhere in the cockpit. With a compact 2.5" x 1" sized panel, the SPA system will easily fit in the tightest panels. All installation hardware including jack kit and pre-wired harness are included.
High Noise Environment N Series
The SPA-400N / SPA-600N FAA TSO approved High Noise Environment Intercom Series is designed specifically for experimental, ultralights, warbirds, helicopters, and other high noise aircraft. Push to intercom as well as voice activated intercom is available as desired. Tested by Sigtronics at ambient noise levels of between 115-120 decibels, the SPA-400N / SPA-600N outperformed all other intercoms on the market, panel mounted as well as portable.
| Features | SPA-400 | SPA-400N | SPA-600 | SPA-600N |
|---|---|---|---|---|
| Headset Positions: | 4 | 4 | 6 | 6 |
| High Noise: | No | Yes | No | Yes |
| Size: | 4" x 2.5" x 1" | 4" x 2.5" x 1" | 4" x 2.5" x 1" | 4" x 2.5" x 1" |
| Weight Unit: | 4.5 oz. | 4.5 oz. | 4.5 oz. | 4.5 oz. |
| Weight Jacks/Harness: | 5.5 oz. | 5.5 oz. | 5.5 oz. | 5.5 oz. |
| Warranty: | 5 Years | 5 Years | 5 Years | 5 Years |
| Price: | $247.00 | $270.00 | $288.00 | $328.00 |
SPA Faceplate
Adapts all SPA Intercoms to standard 2.25 inch round instrument hole.
Part Number: 900068
Price: $11.80
RES-401 / RES-601 Stereo Retrofit System
Full Stereo and Crew Isolate
Add full stereo capability and crew isolate to your existing SPA-400 / SPA-600 intercom installation with our RES-401 / RES-601 stereo retrofit systems. The RES system does not require removal of your existing intercom installation. The RES accepts input from a CD player, cassette player, AM / FM stereo receiver or Walkman. Music is muted when VHF / Comm is transmitting or receiving or when speaking on the intercom. Passengers can also be put on uninterrupted music if they desire.
| Features | RES-401 Stereo Conversion | RES-601 Stereo Conversion |
|---|---|---|
| Headset Positions: | 4 | 6 |
| Size: | 4" x 2.9" x 2" | 4" x 2.9" x 2" |
| Weight Unit: | 9.8 oz. | 9.8 oz. |
| Warranty: | 5 Years | 5 Years |
| Price: | $296.00 | $330.00 |
| SPA-600 / SPA-600N | Installation, Operating, and Modification Instructions |
|---|---|
| Installation and Operating Instructions pdf | Models: SPA-600 Panel Mount Intercom, Standard 6 Place. |
| Installation and Operating Instructions pdf | Models: SPA-600N Panel Mount Intercom, 6 Place High Noise Version. |
| Comm Radio Transmit pdf | Models: SPA-600 and SPA-600N Comm Radio Transmit Trouble-Shooting Guide. |
| Helpful Hints pdf | Model: SPA-600N Helpful Hints for Communicating in Unusually High Noise Environments. |
| SPA Panel Template pdf | Models: SCI, SDB, SPA, and Sport 200 Panel Templates for intercoms. |
| Radio Keyline Modification pdf | Model: SPA, SDB, SCI and Sport Intercoms For KMA-20 Audio Panels and ICOM A220 Radios. |
| SPA-600 Figure 4 installation drawing modification for specified Audio Panels, Headset Jacks, and Radios. | |
| Headset Jacks | SPA-600 U-174/U Jack pdf |
| SPA-600N U-174/U Jack pdf | |
| RES-401 / RES-601 | Installation, Operating, and Modification Instructions |
|---|---|
| Installation Instructions pdf | Models: RES-401 and RES-601 Remote Stereo Music Switcher for SPA-400 / SPA-600 Intercoms. |
| Operating Instructions pdf | Models: RES-401 and RES-601 Remote Stereo Music Switcher for SPA-400 / SPA-600 Intercoms. |