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SPL Stereo Vitalizer MK2-T Tube Audio Enhancer

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SPL Stereo Vitalizer MK2-T

The SPL Vitalizer mk2-T is a tube-equipped version of their Vitalizer mk2 audio enhancer. The tubes are utilized in the unit’s mid-hi processing as well as in the Stereo Expander circuitry. Its tube sound is complemented by coil filtering stages, compounding its already vintage personality. Believe the hype, this is one of the most comprehensive audio enhancers currently on the market.

Stereo Vitalizer MK2-T Features

  • Disarmingly ease of use, intuitive operation by ear
  • Ideal for stereo sources
  • Connection to master or subgroup inserts
  • Excellent noise specs
  • Soft and tight bass colors
  • Bass compressor
  • Mid, high, & harmonics processing
  • Variable input level
  • Stereo expander
  • Hard bypass relay (power fail safety)
  • Balanced I/Os over XLR and TRS sockets

Input & Output

  • Instrumentation amplifier, electronically balanced (differential), transformerless
  • Nominal input level: +6 dB
  • Input impedance: 22 kOhms
  • Output impedance: < 600 Ohms
  • Max. input level: +20 dBu
  • Max. output level: +20 dBu
  • Minimum load ohms: 600 Ohms
  • Relay Hard Bypass
  • Power Fail Safety


  • Frequency response: 20 Hz-100 kHz (100 kHz = -3 dB)
  • EQ frequency range: 20 Hz-22 kHz
  • CCMR (common mode rejection): > -80 dBu @1 kHz
  • THD & N: 0,01855% @ 1 kHz
  • S/N CCIR 468-3: - 85 dBu
  • S/N A-weighted: - 99 dBu

Power Supply

  • Torroidal transformer:.15 VA
  • Fuse: 315 mA (slow blow)
  • Ground-Lift switch
  • Voltage selector


  • Housing: Standard EIA 19"/1U, 482 x 44 x 237 mm
  • Weight: 3,4 kg
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