A21

Sugden Audio A21 Signature Pure Class ‘A’ Integrated Amplifier

Sugden A21 Signature Remote Volume Pure Class ‘A’ Integrated Amplifier – 23 watts The Sugden A21a Pure Class ‘A’ Integrated Amplifier has a lineage stretching back almost 50 years. In 1967 James Edward Sugden designed and produced the worlds first commercially available solid state pure Class ‘A’ amplifier the A21. The initial A21 was sold under […]