Yamaha - R-50 固態立體聲接收器

雅马哈 R-50 自然声立体声接收机（1983-1985）
General Description
雅马哈 R-50 是来自1980年代初的精密“自然声”立体声接收机，当时雅马哈凭借超低失真电路与极简美学占据市场主导地位。该型号因其干净、透明的音频再现以及其创新的数字石英锁定调谐系统而广受好评。
Technical Specifications
• Power Output: 35 瓦特/声道，8 Ω（立体声）
• Frequency Response: 10Hz 至 30kHz
• Total Harmonic Distortion (THD): 0.015%（提供卓越的音质清晰度）
• Damping Factor: 50
• Input Sensitivity: 2.5mV (MM MM 针), 120mV (Line)
• Signal to Noise Ratio: 88dB (MM), 100dB (Line)
• Channel Separation: 55dB
• Dimensions: 435 × 105 × 330 mm
• Weight: 6.3 kg
Key Features & Connectivity
• Variable Loudness Control: 雅马哈的标志性功能，即使在低音量聆听时也能保持全频平衡。
• Inputs: Phono (Turntable), CD/Aux, Video/Tape 1, and Tape 2 (Monitor).
• Speaker Outputs: 两对扬声器端子（A、B，或 A+B）。
• Digital Tuner: 石英锁定调谐的 FM/AM 调谐器，具备 10 个可编程预设。
• Display: 清晰的数字频率显示，带多段 LED 信号强度表。

The Yamaha R-50 is a perfect choice for audiophiles looking for the "Natural Sound" heritage in a compact and reliable format. Its low THD and high signal-to-noise ratio make it stand out among other receivers in its class.
The unit is in excellent working condition, all lights and buttons function correctly.
Minor traces of use, please see photos for a detailed impression.