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Thermionic Culture Swift Stereo Valve Equalizer

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Thermionic Culture Swift

Thermionic Culture presents Swift, a tube stereo equalizer based on ideas sourced from Pultec and EMI. It works great on the mix buss or for individual tracks—but either way, it imparts a luscious all-tube steeze that simply cannot be found anywhere else.

Despite sourcing its inspiration from EMI EQs and Pultec midlifts, the Swift features an array of singular designs throughout its circuitry. Some of these include a high-pass filter, mid cut, and air—all of which enhance the Swift’s inherently transparent sound.

Swift Features

  • All-tube signal path using a combination of NOS and new tubes
  • Based on classic US and UK EQs
  • Shelving Bass and treble lift/cut with two selectable frequencies each
  • Mid cut/lift with four selectable frequencies and thre selectable q combinations
  • Presence and Air controls
  • Switchable High Pass Filter
  • Gain adjustable in steps of 0.75 dB
  • Frequency range exceeds human hearing on both ends of the spectrum with minimal phase shift
  • Virtually no distortion or noise
  • Frequency Response: +0.5 / -1 dB 12 Hz to 40 kHz 
  • THD (measured at 1kHz & 100Hz): At +4 dBu 0.01%; + 10 dBu 0.02%; +18dBu 0.1%; + 24 dBu 1% (MOL)
  • Noise (below max o/p level – MOL): -115dB
  • Gain: -10.5 to +3dB in 0.75dB steps
  • Input impedance: 10k Ohm
  • Output impedance: 250 Ohm
  • Power consumption at 115/230 VAC: 30W
  • Net Weight: 7kg / 15.4 lb
  • Indicator lamp: 12V, 3W
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