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About the Diana Forte
The Aries Cerat Diana Forte is a reference-level stereo power amplifier positioned as one of the most powerful SET (single-ended triode) amplifiers in production. It uses a parallel single-ended Class A output stage and Aries Cerat’s proprietary AC-link coupling between matching components, with a design centered on very large directly heated triodes and extensive power-supply filtering. The Diana Forte is described as a bridge between the Concero 25 and Concero 65 monoblocks, delivering high output for an SET design while emphasizing wide bandwidth, low noise, and user-adjustable tube bias and monitoring.
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