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)

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

Base operation parameters:

• Output power: 2 x 120 W R.M.S. (version A), 2 x 105 W R.M.S. (version SE)
• Transmission band: 4 Hz-70 kHz
• Inputs: RCA (cinch)
• Operation class: tetrode AB1
• Used tubes: 6KG6, 12AT7, 12AU7
• Input sensitivity: 1,55 V
• THD unlinear distortions: <0,1% @ 1W, <1% @ 100W
• Signal to noise ratio: 90 dB
• Input impedancy: 100 kohm (RCA)
• Dumping factor:   10
• Maximal power consumption: 500 W
• Weight: 18 kg
• Dimensions: 46 x 39 x 21 cm (Width/Depth/Height)

Base operation parameters:

• Output power: 2 x 120 W R.M.S. (version A), 2 x 105 W R.M.S. (version SE)
• Transmission band : 4 Hz-65 kHz (RCA) 12 Hz-65 kHz (XLR)
• Inputs : 4 (included balanced XLR)
• Operation class : tetrode AB1
• Used tubes : 6KG6, 12AT7
• Input sensitivity : 400 mV
• THD unlinear distortions : <0,1% dla 1W, <1% dla 100W
• Signal to noise ratio: 86 dB
• Input impedancy : 100 kohm (RCA), 4 kohm (XLR)
• Dumping factor: 10
• Maximal power consumption : 500 W
• Weight : 22 kg
• Dimensions : 46 x 39 x 21 cm (Width/Depth/Height)