Dubiel tube amps -

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23 maja 2010

Stereophonic gramophone preamp Phonomaster

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Phonomaster

Base operation parameters:

  • Number of inputs: 1 pair RCA for MM catrige 1 pair RCA for MC catrige
  • Output: 1 pair RCA
  • Input impedancy for MM: 47kohm for MC: 50, 150, 47 kohm
  • Maximum input Voltage: 15 mV
  • Nominal output voltage: 2V
  • Amplify: MC = 62 dB, MM = 40 dB
  • Load resistance: > 5 kohm
  • Signal to noise ratio: 80 dB
  • Transmission band: RIAA curve +/- 0,5 dB
  • THD distortions: < 0,1 % for Uout = 700mV
  • Maximal power consumption: 35 W
  • Weight and dimensions: 2,5 kg (with power suply), 16x20x15 cm (Width/Depth/Height)

products

Stereophonic full balanced tube preamp PV-2

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Preamp PV2

Base operation parameters:

  • Number of inputs: 1, balanced XLR 3 x RCA (cinch), converting unbalanced to balanced signal
  • Output: 2 x XLR
  • Input impedance: 50 kohm (4 kohm RCA)
  • Input sensitivity: 350 mV
  • Nominal output voltage: 2 * 1,55 V Umax = 2 * 15 V @ THD = 1%
  • Input impedancy: 2 * 0,5 kohm
  • Load resistance: > 5 kohm
  • Signal to noise ratio (curve A): 90 dB
  • Transmission band: 4 Hz – 110 kHz, 10 Hz – 90 kHz (Cinch RCA) (+0-3dB)
  • THD distortions: < 0,77 V dla 2 * 1,55 V
  • Maximal power consumption: 30 W
  • Phase: reversed
  • Weight and dimensions: 2,5 kg, 30x20x10 cm (Width/Depth/Height)

products

Stereophonic tube preamp with separeted power supply PV-1

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Preamp PV-1

Base operation parameters:

  • Numer of inputs: 4(included XLR)
  • Input impedancy: 50 kohm (4 kohm XLR)
  • Input sensitivity: 380 mV
  • Nominal output voltage: 1,55 V Umax = 15 V @ THD = 0,7%
  • Output impedancy: 5 kohm
  • Load resistance: > 5 kohm
  • Signal to noise ratio (curve A): – 90 dB
  • Transmission band: 3 Hz – 110 kHz (+0-3dB)
  • THD unlinear distortions: < 0,1%@ 0,77 V; < 0,2@1,55V
  • Maximal power consumption: 16 W
  • Phase: reversed
  • Weight and dimensions: 2,5 kg, 30x20x10 cm