Proton 520 (520) specifications

Brand: Proton

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• Power Output: 20W into 8Ω (stereo)
• Frequency Response: 20Hz to 20kHz
• Distortion: 0.015%
• Damping Factor: 90
• Speaker Impedance:
• Input Sensitivity: 2.5mV (mm), 0.2mV (mc), 150mV (line)
• Signal to Noise Ratio: 80dB (mm), 68dB (mc), 90dB (line)
• Line Output:
• Dimensions:
• Weight:
• Year:
• Price: GBP £115 (1992)