Thermionic Culture Culture Vulture Mastering Valve Enhancer


Thermionic Culture CULVUL-MASTERP Culture Vulture-Mastering Plus

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This new version in the Culture Vulture Mastering was introduced in 2011, designed to provide the user not merely an accurate “mastering” version in the Culture Vulture but a lot more impact choices. The unit is accurately aligned for stereo or single channel operation. All valves are “military” specification, NOS, produced in France and USA and have low noise plus extended life. With mastering in thoughts, this version from the Culture Vulture retains all of the qualities in the earlier design, and has closely matched controls and valves. A test report is supplied with every one, which offers the optimum current (usually 0.25 mA) which the Bias controls must be set to for minimal distortion.
The text
beneath refers to one particular channel (the other exactly the same). The “Function” control now has four settings:

T triode sort 2nd harmonic distortion
P1 pentode
sort, 3rd harmonics
P2 new setting, as P1
as much as a peak, then over-compresses with distortion effects
P3 the original P2 setting (“no holds barred”)

The Drive control consists of an indented pot for fine handle plus a switch which increases the input get in 2x 10 dB measures to “Overdrive”. The Output Level manage also has an indented pot for fine control plus a -10 dB switchable attenuator.

Sowter transformers are utilized to balance line input and output, but DI input and low level output are both unbalanced. The DI input is higher impedance, higher obtain for instrument use.

The bypass switch ignores the DI input and connects any signal coming towards the line input jack to the line output jack, bypassing the electronics for comparison purposes.



  • Low noise + long life valves.
  • Accurate side to side matching.
  • Frequency response extended.
  • Indented controls for easier recall.
  • Function switch has extra distortion type position.
  • Overdrive switch has extra mid-way position.
  • Output attenuator switch for better control of strong signals.
  • Balanced line inputs and outputs on stereo jacks.
Additional information

Additional information

Weight33 oz


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