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SUGDEN A21SE Signature - Integrated AmplifierSugden A21SE Signature Pure Class A Integrated Amplifier Classic British Class A amplification with refined dynamics and musical coherence. The Sugden A21SE Signature is a beautifully engineered integrated amplifier built on a pure Class A single ended voltage rail design. With an enlarged power supply and improved pre amplifier stage, it delivers enhanced control, clarity and expressive musicality ideal for serious audiophile stereo systems that
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Sugden A21SE Signature – Pure Class A Integrated Amplifier

Classic British Class A amplification with refined dynamics and musical coherence. The Sugden A21SE Signature is a beautifully engineered integrated amplifier built on a pure Class A single-ended voltage rail design. With an enlarged power supply and improved pre-amplifier stage, it delivers enhanced control, clarity and expressive musicality — ideal for serious audiophile stereo systems that value musical nuance and long-term ease of listening.

  • Pure Class A integrated amplifier for natural, emotive sound
  • 30 W per channel into 8 Ω, 40 W into 4 Ω for strong dynamic control
  • Wide frequency response with extended bandwidth
  • Elegant aluminium chassis with simple, functional layout

Product Overview

The Sugden A21SE Signature builds on the long heritage of Sugden’s Class A designs, retaining the brand’s distinctive sound while adding a larger power supply for improved drive and headroom. The sophisticated pre-amplifier stage improves clarity without brightness, making highs clear and detailed while preserving warmth and musical flow. :contentReference[oaicite:1]{index=1}

With a pure Class A output stage, the A21SE delivers fluid dynamics, deep but controlled bass and a natural midrange — characteristics that appeal strongly to traditional hi-fi enthusiasts and audiophiles alike. :contentReference[oaicite:2]{index=2}

Listening Experience

Experience a wide, open and authoritative sound that stays composed under complex musical passages. The pure Class A circuitry fosters coherent spatial imaging, enabling instruments and voices to appear lifelike and well-defined. The A21SE’s natural tonal balance also reduces listening fatigue, making it ideal for extended sessions with varied music genres.

Recommended Room Size

Well suited to small to medium listening environments, the A21SE delivers satisfying depth, dynamics and scale when paired with suitable speaker systems. It pairs especially well with speakers of moderate sensitivity and stable impedance. :contentReference[oaicite:3]{index=3}

Use Cases

  • Audiophile stereo systems: rich, nuanced sound for dedicated listening
  • Vinyl front end: paired with a quality phono stage or external source
  • Digital sources: with high-resolution front ends for detail and depth
  • Home living rooms: natural, engaging playback for movies and music

Connectivity & Controls

While deliberately simple, the A21SE offers the essential connections and functionality for a refined stereo system:

  • Multiple line-level inputs (five) operated by relays
  • Pre-out (variable) and tape out
  • One pair of high-quality multi-way binding post speaker terminals
  • Remote control (RC5 handset included) for convenient operation

Technical Specifications

  • Type: Integrated stereo amplifier
  • Topology: Pure Class A single-ended voltage rail
  • Line input sensitivity: 110 mV @ zero attenuation for full output
  • Power output: 30 W per channel into 8 Ω; 40 W per channel into 4 Ω
  • Frequency response: ±1 dB from 12 Hz to 141 kHz
  • Bandwidth: 6 Hz – 280 kHz
  • Signal-to-noise ratio: >90 dB
  • Inputs: Five line-level operated by relays
  • Outputs: Pre-out (variable), tape out
  • Speaker terminals: One pair multi-way binding posts
  • Remote control: RC5 handset included
  • Dimensions (W × H × D): 430 × 115 × 360 mm
  • Gross weight (packed): approx. 15 kg

Why Choose the Sugden A21SE Signature?

The A21SE Signature stands as a refined example of classic British hi-fi: pure Class A power, elegant simplicity and a musicality that rewards both critical listening and relaxed enjoyment. Its distinctive tonal balance, extended bandwidth and robust build make it an exceptional choice for serious audiophiles and music lovers alike. :contentReference[oaicite:4]{index=4}

SUGDEN A21SE Signature - Integrated Amplifier

Item no : 89684935454
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US$ 2000.00
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