For the pure Class A lovers The ultimate set The Sugden Audio A21SE Signature is a pure Class A single-ended integrated amplifier known for its organic, liquid sound that many enthusiasts describe as “tube-like” despite its solid-state design. It is a special edition upgrade of the classic A21, featuring a 50% larger power supply and an improved pre-amplifier stage for better speaker control and clarity.
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Technical Specifications
According to Sugden Audio and authorized retailers like The Groove Man, the A21SE Signature is built for precision and stability:
Power Output: 30 Watts per channel into 8 Ohms; 40 Watts per channel into 4 Ohms.
Frequency Response: +/-1dB from 12Hz to 141kHz.
Bandwidth: 6Hz to 280kHz.
Signal to Noise: Greater than 90dB.
Dimensions: 115 x 430 x 360mm (HWD).
Weight: 14kg to 15kg The Sugden Mystro Precision Monitor is a high-end, handcrafted, compact bookshelf loudspeaker designed and manufactured by J.E. Sugden & Co in West Yorkshire, England. It is designed to offer exceptional clarity, speed, and musicality, particularly suitable for modern, smaller listening spaces.
Key details about the speakers include:
Design: A single full-range “leaky” cabinet, featuring a small rear port and heavy internal BAF damping.
Construction: Hand-built using high-density MDF with pressed and glued, mitre-locked joints, often finished with book-matched veneers.
Performance: Designed for placement close to a rear wall to support the narrow front baffle, with a recommended toe-in to optimize imaging.
Specifications:
Frequency Range: 50–20,000Hz +/-3dB.
Sensitivity: 87dB (1 watt, 1 metre).
Impedance: 8 Ohms.
Power Handling: 100 Watts Peak, 50 Watts Program.
Dimensions: 185mm x 215mm x 334mm (WDH)