520

The Proton 520 is a compact stereo integrated amplifier from the early 1990s, recognized for its dynamic sound and similarity to the NAD 3020.

Short Description: The Proton 520 is a minimalist, well-built amplifier with a black finish, delivering clear and engaging audio for small setups. It’s praised for its musicality and value, often compared to the NAD 3020 for its design and performance.

Key Points:

• Power Output: 20 watts per channel into 8Ω (stereo).
• Frequency Response: 20Hz to 20kHz.
• Total Harmonic Distortion: Low, ensuring clean sound.
• Inputs: Phono (MM), Tuner, DAD, Tape/Video.
• Impedance: Minimum 4Ω.
• Dimensions: 420 x 87 x 280 mm.
• Weight: 5.2 kg.
• Sound: Dynamic, balanced across highs, mids, and lows; ideal for bookshelf speakers like B&W 606.
• Build: Solid, easy to service.

Year of Manufacture: 1992.

Additional Notes:

• Highly regarded by enthusiasts for its lively sound and affordability.