SPA-4S Two or Four Place Stereo Intercoms
- FAA TSO approved.
- Pilot fail safe feature allows pilot to always hear radios.
- Use Satellite Radio, MP3 or CD players as audio source.
- 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.
Compact Stereo System
The SPA-4S is a 2 or 4 place voice activated intercom with inputs for stereo music. It is a compact system that allows it to fit in space critical panels. The SPA-4S uses the industry standard Sigtronics squelch, fast on slow off for hands free communication. The music will full mute during ATC communication and partial mute during intercom communication. When radio / intercom use is ended the music will gradually return to its previous volume.
Easy Upgrade
Each intercom comes complete with all necessary mounting hardware, jacks, and two 4-foot pre-wired harnesses. The SPA-4S only requires 1" X 2.5" of panel space, mounts horizontal or vertically, is 4" deep, and weights 5.5 oz. The SPA-4S intercom can easily upgrade the SPA-400. The SPA-4S uses the same panel hole pattern and interface cable as the SPA-400. A second cable is provided for the music inputs and headphone outputs.
High Noise Environment N Series
The FAA TSO approved SPA-4SN is available for the high noise amateur built aircraft and helicopters. As with all of Sigtronics' products, the SPA-4S / SPA-4SN are RFI and EMI immune. The SPA-4S intercom is constructed of high quality components and carries a five-year parts and labor warranty. The SPA-4S will operate on an input power of 11 VDC through 32 VDC. Maximum current drain 0.10 Amps.
| Features | SPA-4S | SPA-4SN |
|---|---|---|
| Headset Positions: | 4 | 4 |
| High Noise: | No | Yes |
| Size: | 4" x 2.5" x 1" | 4" x 2.5" x 1" |
| Weight Unit: | 5.5 oz. | 5.5 oz. |
| Weight Jacks/Harness: | 7.0 oz. | 7.0 oz. |
| Warranty: | 5 Years | 5 Years |
| Price: | $330.00 | $355.00 |
SPA Faceplate
Adapts all SPA Intercoms to standard 2.25 inch round instrument hole.
Part Number: 900068
Price: $11.80
| SPA-4S / SPA-4SN | Installation, Operating, and Modification Instructions |
|---|---|
| Installation Instructions pdf | Models: SPA-4S and SPA-4SN Panel Mount 4 Place Stereo Intercom. Standard and High Noise Versions. |
| Operating Instructions pdf | Models: SPA-4S and SPA-4SN Panel Mount 4 Place Stereo Intercom. Standard and High Noise Versions. |
| Installation Instructions pdf | Models: SPA-4S and SPA-4SN (Out of Production) Serial Numbers: 4603444 and lower Panel Mount 4 Place Stereo Intercom. Standard and High Noise Versions. |
| Operating Instructions pdf | Models: SPA-4S and SPA-4SN (Out of Production) Serial Numbers: 4603444 and lower Panel Mount 4 Place Stereo Intercom. Standard and High Noise Versions. |
| Helpful Hints pdf | Models: SPA-4SN 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. |
| Figure 4 installation drawing modification for specified Audio Panels, Headset Jacks, and Radios. | |
| Auxiliary Audio | SPA-4S Auxiliary Audio Input pdf |
| SPA-4SN Auxiliary Audio Input pdf | |
| Headset Jacks | U-174/U Jack pdf |
| Radios - SPA-4S | Garmin GNC250/XL Radio pdf |
| ICOM A3, A6, A22, and A24 Radio pdf | |
| ICOM A-200 and A-210 Radio pdf | |
| King KY 97A Radio pdf | |
| Microair 760 Radio pdf | |
| TERRA TMA 330D, TMA 340D, and TMA 350D Radio pdf | |
| Radios - SPA-4SN | Apollo SL-40 Radio pdf |