A Brilliant Amplifier Design Built Around the 300-B Tube!
The Octave Jubilee 300 B tube monoblocks feature an innovative and unique amplifier design based on the legendary 300-B tube. Choosing a single-ended triode is always a matter of direction, as even a powerful Octave 300 B, delivering an impressive 30 watts at 4 ohms, requires a careful speaker selection. However, this does not severely limit music lovers – meaning that no sonic compromises are needed.
Enter the Franco Serblin Ktêma – a speaker its designer worked on for five years. The name “Ktêma” comes from a quote by the Greek historian Thucydides and means "eternal possession." And for many audiophiles, that is exactly what this speaker could be – the ultimate loudspeaker of their dreams.
Describing the Ktêma's magic in words is challenging. Is it the stunning bass response, bringing orchestral music to life down to 26 Hz? Or the unique tonal richness, making string instruments shine in their full authenticity? We believe the Ktêma sounds overwhelmingly natural, creating true soundscapes. The term "soundstage" hardly does it justice – it is one of the most musical speakers we have ever heard. And that is precisely why it deserves a 300 B!
The 300-B triode is synonymous with smooth, lively, and captivating sound. However, in the Octave Jubilee power amplifier, it reaches an unprecedented level of authenticity, openness, and power. With the Ktêma, we weren’t just hearing HiFi – we were experiencing music in its purest form!
A significant part of this sonic masterpiece comes from the Octave Jubilee Preamp. Its feedback-free signal amplification adds an unmatched level of naturalness, ease, and dynamics to the sound. This outstanding tube preamplifier allows the 300 B to fully unfold its sonic potential down to the finest details.
One standout feature: We tested the Jubilee Preamp in a special version with a 47-step attenuator for volume control. With channel deviation under 0.1 dB, this solution is sonically flawless, making it the perfect choice for high-end volume regulation. While the mechanical design of the switch makes remote control impossible, we were more than happy to take those extra steps – the musical payoff was more than worth it!
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