SUGDEN A21 SE SIGNATURE

Pre owned. In excellent condition. No visible signs of wear. Original packaging not included.

The Sugden A21A Signature is a pure Class A integrated amplifier, designed to deliver high-end performance with simple yet refined elegance. Its warm and enveloping tonal character engages the listener without seeking hyper-definition or exaggerated detail, favoring a natural and musical sound. The sonic texture, while not as light as typical tube amplifiers, provides immediate dynamic solidity and emotional involvement.

The amplifier delivers 36 watts in Class A, a power that, thanks to the consistent modulation provided by the transistors and robust transformer-based power supply, allows it to drive a wide range of loudspeakers with authority. Despite the relatively low efficiency of Class A, every watt translates into control, depth, and precision, making the A21A capable of handling even demanding speakers. Matching is important: smaller rooms and speakers with a neutral character yield optimal results. The amplifier pairs particularly well with neutral speakers with an open, airy high-frequency response, while transparent, clear-toned cables further enhance the system.

Its single-ended voltage design provides remarkable dynamics, deep bass, and a wide soundstage, conveying the musicality of any genre naturally and without listener fatigue. The solid construction and reliable circuitry have ensured that many original A21 units are still in daily use after fifty years, suggesting a lifespan that can last a lifetime. The A21A Signature combines authority and lightness, delivering a full and satisfying listening experience that will excite anyone looking to build a high-quality, musically engaging system without excessive complexity.

Technical specifications:

• Line input sensitivity: 170 mV for maximum output
• Phono input sensitivity: 3 mV/mm MM, 0.2 mV/mC MC for maximum output; Phono loading: MM 47kΩ, MC 100Ω
• Power output: 36 W into 8 Ohms
• Frequency response: ±1 dB 10 Hz–20 kHz; Bandwidth: 6 Hz–200 kHz
• Signal-to-noise ratio: >83 dB
• Dimensions: 92 × 430 × 350 mm
• Weight: 10 kg