NORMA REVO 50

Pre owned. In excellent condition. Free of visible signs of wear. Comes with remote control, manual, and original packaging.

The Norma Revo 50 is the integrated amplifier that brought the prestigious Revo series to the hi-fi public, representing an excellent balance between sonic refinement and affordability.

Designed and fully built in Italy by Norma Audio Electronics, this amplifier is a completely analog, dual-mono component with balanced circuitry, following a minimalist yet extremely meticulous philosophy: no excessive global filters, no forced equalization—just the aim of delivering music with maximum speed, transparency, and naturalness.

On listening, it immediately impresses with its lightning-fast attack and transient response, a characteristic resulting from its wide-band design and high current delivery capability. The output MOSFETs operate in class AB with great linearity, ensuring truly authoritative speaker control, even with demanding loads and at higher volumes.

The Norma sound is unmistakable: a midrange rich in harmonics and micro-details, a warm yet never bloated or overly sweet timbre, fast and precise bass (never slow or flabby), and airy highs free from harshness. The soundstage opens with depth and width, providing a three-dimensional image that clearly conveys instrument placement and the breathing of the musicians.

Despite its stated power being “only” 50 W per channel at 8 Ω (with significant increase at 4 Ω), the Revo 50 drives speakers far more expensive and demanding than itself with surprising authority, thanks to its generous power supply and low output impedance. It is the ideal amplifier for those seeking emotion and engagement without sacrificing resolution and realism, perfect for mid-to-high-end systems that prioritize musical naturalness over brute power.

Now discontinued (replaced by models such as IPA-70, IPA-80, and IPA-140), it remains a highly sought-after piece on the used market for its quality-to-price ratio and distinctive sound, which makes it unique in the hi-fi world.

Technical specifications:

• Type: Stereo dual-mono integrated amplifier, fully analog
• Output power: 50 W RMS per channel at 8 Ω (20 Hz – 20 kHz, both channels driven)
• Frequency response: 0 Hz – over 800 kHz (–3 dB, max volume, unfiltered)
• Total harmonic distortion (THD): extremely low even at high power
• Signal-to-noise ratio: > 100–110 dB (A-weighted)
• Output stages: High-linearity, high-current MOSFETs, no global feedback (or minimal local feedback)
• Inputs: 4× high-quality unbalanced RCA line inputs; MM/MC phono input included
• Outputs: 1 pair of speaker binding posts (compatible with spade and 4 mm banana connectors)
• Input impedance: 10 kΩ (selected input) / 47 kΩ (unselected input)
• Volume control: High-quality motorized potentiometer
• Construction: Chassis in machined anticorodal aluminum, thick panels for vibration damping, anti-vibration feet
• Dimensions (W × H × D): approx. 430 × 90 × 350 mm (excluding feet, knob, and rear connectors)
• Weight: approx. 12 kg