This manual describes the features and usage of the Yamaha S55 speaker system.
The Yamaha S55 is a compact two-way bass-reflex speaker system featuring a 16 cm (6.5") woofer and a 2.5 cm (1") tweeter. It is designed to provide well-balanced, high-quality sound reproduction across the entire frequency range, from powerful bass to delicate high-frequency sounds. The system includes an anti-magnetic design and an internal protection circuit for the tweeter that shuts off the unit when an excessive input signal is applied.
| Woofer Size | 16 cm (6.5") Cone |
|---|---|
| Tweeter Size | 2.5 cm (1") Horn |
| Enclosure Type | Bass reflex |
| Frequency Range | 60 Hz—40 kHz |
| Nominal Impedance | 6 Ohms |
| Sensitivity | 90 dB SPL (1watt, 1m) |
| Power Capacity (Noise) | 70 watts |
| Power Capacity (PGM) | 140 watts |
| Max Power | 250 watts |
| Crossover Frequency | 2.5 kHz |
| Protection Circuit Type | Automatic return type |
| Connector Type | Push terminal |
| Dimensions | 370 x 250 x 215 mm |
| Weight | 6 kg |
Connect the red input terminal on the system to the output terminal (+) on the power amplifier, and the black output terminal to the output (-).
The nominal impedance of the speaker system is 6 Ohms.