SUGDEN A21A SIGNATURE Phono

Class A Amplifier with Phono Stage

The Sugden A21A integrated amplifier is an iconic piece in the world of high-quality audio, thanks to its pure Class A design and a legacy dating back to 1968. This model, refined over time, is renowned for its reliability and its ability to deliver an authentic and immersive listening experience. The Sugden A21A is one of the few single-ended Class A solid-state amplifiers available on the market, a heritage that continues to captivate music enthusiasts worldwide.

Aesthetically, its simple yet elegant design is paired with compact dimensions, making it a refined addition to any listening environment. Despite its understated appearance, the A21A stands out for its outstanding performance. The single-ended Class A circuit, inspired by technologies more commonly associated with high-end valve amplifiers, ensures exceptional sound quality free from crossover distortion. This approach provides a wide and deep soundstage, impressive dynamics, and powerful bass, delivering a natural and fatigue-free listening experience.

Its robust build and large heat sinks do not compromise the amplifier’s compactness, which also features optional phono input, tape monitoring, and stereo/mono switching. The midrange is a standout characteristic of the Sugden A21A, capable of rendering music with authority, definition, and extraordinary articulation, bringing every harmonic subtlety to life with a unique sense of physical presence.

Technical specifications:

• Inputs: Four Fine Line-level inputs, optional MM/MC phono input
• Outputs: One pair of stereo multi-way binding posts, pre-out (variable), tape out (fixed)
• Remote control: Volume adjustment up/down
• Earth terminal: Included
• Line input sensitivity: 170mV for maximum output
• Phono input sensitivity: 3mV (MM), 0.2mV (MC) for maximum output
• Phono loading: MM 47kΩ, MC 470Ω
• Power output: 25 watts into 8 ohms
• Frequency response: 10Hz-20kHz (+/-1dB)
• Bandwidth: 6Hz-200kHz
• Signal-to-noise ratio: >83dB
• Gross weight (packed): 11 kg
• Dimensions: 92 x 430 x 350 mm (H x W x D)