How good is pure Class A when it has a bit of power? I find out by looking at the Sugden Masterclass IA4. A flagship integrated amplifier from one of the most respected HiFi brands in the industry.
Link to sponsor's webpage:
https://stackaudio.co.uk/
Link to manufacturers website:
https://www.sugdenaudio.com/ia-4-integrated-amplifier
https://fosiaudio.com/products/fosi-audio-v3-mono-power-amplifier
Link to my Patreon:
https://www.patreon.com/abritishaudiophile
Related reviews:
Hegel H400
https://youtu.be/N1UQYyZKhA8
Accuphase E280
https://youtu.be/QGmaeAUJWhg
Trilogy 921
https://youtu.be/Y_q4gvs6tL0
NVA P50SA / M600
https://youtu.be/773fuxbVDO0
Moor Angel Pre & Angel 4
https://youtu.be/IOtgf5hT8TM
Quad Revela 1
https://youtu.be/5TERfYkz7eo
Alta Audio Alyssa
https://youtu.be/8JR9GrhwMw4
Time stamps:
0:00 Intro
2:00 Design & features
3:56 Technical insights
7:36 Sound quality
13:32 Setup & partnering equipment
16:54 Conclusion