Simplex 4100-1329 — digital 100 W primary audio amplifier with integral power supply, 70.7 VRMS output.
This is the card that turns the panel's digital audio message into speaker power for a 4100 series emergency voice/alarm communication system. As a primary amplifier it carries its own six Class B audio NACs, so speaker circuits land on the amplifier assembly itself.
- 100 W output at 70.7 VRMS
- Six on-board Class B audio notification appliance circuits
- NAC rating 1.414 A @ 70.7 VRMS; up to 100 speakers maximum per circuit
- Input 120 VAC, 60 Hz; UL listed model
- Constant supervision compatible
These catalog numbers run in tight families and are not interchangeable: 4100-1328 is the 25 VRMS twin, 4100-1331 the ULC model, 4100-1333 the 220/230/240 VAC model, 4100-1335 the backup amplifier that borrows the primary's NACs, and 4100-1315 the analog rather than digital 70.7 V equivalent. Confirm output voltage, input voltage, listing and primary-versus-backup role against the record drawings.
