A-S300
| Manufacturer | Yamaha |
| Function | Amplifier, Integrated |
| Country | Japan |
| Form Factor | Tabletop |
| Dimensions | 435 x 151 x 387 mm |
| Weight | 9 kg |
| Frequency Response | 10 Hz-100 kHz ±1 dB |
| Standby Power Consumption | 0.5 W |
| Minimum RMS Output Power | 60 W + 60 W ((0.019% THD)) |
| Total Harmonic Distortion | 0.015% ((30 W/8 ohms)) |
| Signal-to-Noise Ratio | 100 dB |