Magma M Evo is a high-power single-ended monoblock operating in pure Class A with zero global feedback. A direct-heated output triode supplies the power, while NAT’s revised driver arrangement avoids coupling capacitors and unnecessary passive parts in the direct signal path.
Custom wide-bandwidth output transformers, regulated supplies and high stored energy give the amplifier the current reserve required for difficult loudspeakers. Multiple operating modes allow output and heat dissipation to be adapted to the system and listening environment.
The amplifier is hand wired with selected aerospace- and military-grade parts, silver/OFC signal conductors and high-mass connectors. Its substantial aluminium chassis and protective tube structure are engineered around the mechanical and thermal demands of the output valve.
