With the Sira-LE we've taken the already excellent Sira linestage preamplifier a step further with refinements to the volume control circuit and the addition of beautiful chassis artwork. The Emotive Audio Sira-LE Linestage preamplifier performs at the highest level and is the sonic and aesthetic partner for the exceptional Caeli-LE mono power amplifiers.
At the heart of the Sira-LEs audio circuit are its superb sounding 5687 twin-triode voltage amplifier and the super linear 6186 cathode follower tubes. We've configured these into an extremely simple audio circuit, but with an elaborate support system of voltage regulators and high impedance current sources to create an optimal operating environment for these tubes.
Think of it this way: the 5687 twin triode and 6181 cathode follower have the potential to amplify your music's audio signal with great integrity. Unfortunately, the potential of these (or any other) great audio tubes can not be realized within the constraints of conventional audio design. This is because tubes require electrically specific operating environments to reach their potential--operating environments that are difficult to provide.
The reason these environments are so hard to provide is that, often, the values that define them are in direct conflict with each other within conventional audio circuit designs. This is where the Sira-LE is unlike more conventional preamplifiers. We've eliminated the conflicting needs within its audio circuits through the use of high impedance current sources in place of both the plate and cathode resistors for the audio tubes. The result is that these tubes can operate in a much more linear manner than in conventional circuits. And, this yields real improvement in audio quality--allowing the music to come through more freely.
As with the Sira, the Sira-LE is an all vacuum tube design. We've incorporated vacuum tube-type circuitry for the power supply's rectification, voltage regulation and high impedance current sources. This approach has proven to be the ultimate for providing musical sounding support circuits for the Sira-LE's audio tubes.
Finally, it is obvious looking at the Sira-LE that it is unlike any other audio product available. Each piece is truly a hand made work of art. Our metal chassis are individually designed and acid etched for us by Evy Rogers of Jacob-Rogers art furniture--highly respected metal artists. Each piece is signed and there are no repeated designs. Our standard finish is a bright nickel plate with beautiful Granadillo wood.
At Emotive Audio, the music has always been our inspiration. As with all of our products, we make the Sira-LE to honor the music that will be played through it. In this effort, the Sira-LE linestage preamplifier represents our finest work.
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