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MB81 SE
Icon AudioEstimated price (community-sourced)
Around — community and catalog average, updates slowly
About the MB81 SE
The Icon Audio MB81 SE is a high-power, single-ended-triode (SET) valve monoblock power amplifier built around the Russian GU81M transmitting valve. Sold as a stereo pair, each chassis is a hand-wired, pure Class-A monaural amplifier rated at 100 W into 8 ohms. It uses two 6SN7 valves in the input stage and a KT150 driver valve ahead of the GU81M output stage, includes Icon Audio’s built-in Easy Bias meter, tertiary-wound low-distortion output transformers, and gold-plated input/speaker terminals. Its unusually high output for a SET design is intended to make it usable with low- to medium-sensitivity loudspeakers and in medium to very large rooms.
Specifications
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