The AS-501 is Yamaha’s high-performance stereo amplifier, designed for audiophiles who want powerful, precise sound reproduction for music systems. It delivers clear, dynamic audio with wide frequency response and excellent control over connected speakers.
| Specification | Details |
|---|---|
| Channels | 2‑channel stereo |
| Power Output | 150 W per channel (Dynamic Power @ 6 Ω) |
| Frequency Response | 10 Hz – 100 kHz ±1 dB |
| Damping Factor | 240 |
| Total Harmonic Distortion (THD) | 0.019% (1 kHz, 8 Ω) |
| Signal-to-Noise Ratio (SNR) | 110 dB |
| Input Sensitivity / Impedance | 200 mV / 47 kΩ |
| Preamp Outputs | Yes (for subwoofer or additional power amp) |
| Speaker A/B Output | Yes |
| Phono Input | MM (for turntables) |
| Tone Control | Bass, Treble, Balance |
| Headphone Output | Yes |
| Build/Chassis | High-quality A-style aluminum front panel, low vibration design |