Thermionic Culture Vulture Stereo Valve Enhancer

Thermionic Culture

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Product Code: 9999-11708
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The Thermionic Culture Vulture Stereo Valve Enhancer is a sonic mojo box that is design to tonally shape and enhance you audio with the beautiful sound of vacuum tubes.

The Thermionic Culture Vulture Stereo Valve Enhancer is the original studio tool designed for tonally shaping your audio by adding valve produced harmonic distortion, with no solid state components in the way. This unique unit has changed little since its introduction in 1998. There are 3 basic settings for the type of distortion: T gives the typically "musical" effect found with triode valves and is good for just "warming up" a sound. P1 means that the "distortion" valve is switched to Pentode mode to add odd harmonic which make the sound more aggressive, but retaining that valve character. P2 is the "No Holds Barred" setting and is very unusual way of configuring an unusual valve, even giving an extra octave at higher bias settings.

The Bias control varies the current through the "distortion" valve (6AS6 type) and this current is shown on the milliameter. At low current the Vulture is "starved" and the sound is inclined to be thinner and "break up" easily. High current and the Vulture is over-fed and becomes quite fat and bloated. At medium current (0.25-0.3 mA) it distorts least, and this is the best setting for just "warming up" a sound. When the Vulture is over-driven, the meter may "twitch" and this gives a good indication of how drastic the distortion is.

The Low-pass filter has a 12dB/octave slope and will remove unwanted frequencies above 6 or 9 kHz (selectable) so as to make the sound more "rounded". The Drive control and Overdrive switch give the user ample control over the amount the input signal is boosted before it hits the 6AS6 valve.

Thermionic Culture Vulture Stereo Valve Enhancer Features

  • The original and only all valve rack-mountable distortion /enhancer.
  • Vast range of distortion effects;
  • Low pass filters (switchable);
  • Bypass and Overdrive switches;
  • 2 inputs per channel. DI at front cuts out LINE at rear;
  • 2 outputs per channel, line and low level;
  • Standard ¼" jacks, stereo wired unbalanced for all connections;
  • Long life high quality valves;
  • Made in England.

Thermionic Culture Vulture Stereo Valve Enhancer Specifications

  • Maximum Output level (M.O.L): +17dBV
  • Distortion: 0.2% to 99.5%
  • Noise: better than 75dB below M.O.L at typical settings
  • Input impedance: 30kΩ
  • Output impedance: 2kΩ (should ideally drive a 10kΩ + input impedance)
  • Frequency response: ± 1.75dB over 50Hz to 15kHz (at low distortion)
  • Max. gain (clean): 35dB
  • Max. gain (overdriven): >60dB

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