Voltage setting on Rose 150B

Hi there
I have just purchased a new Amp and looking to find out what Voltage setting I set up in my Rose 150B

The Amp I have purchased is a Synthesis 96DC - 25Watts Class A (below are the specs)

Any help would be appreciated.

  • Power tubes (each ch): 2 X EL34/6CA7
  • Tube driver (each ch): 1 X 12AU7/ECC82
  • Input: OP/Amp NJM2114
  • Output power (each ch): 25W A Class into 6ohm
  • Frequency response: 20Hz to 20KHz - 0dB
  • Power stage config.: Pentode configuration
  • Input impedance (line): 50Kohm
  • Sensivity: 300mV for max power
  • Distortion: < 1% 25W 1KHz
  • Signal/Noise ratio: >90dB (A-weight)
  • Frequency response (Phono):
  • RIAA stage 20Hz - 20KHz ± 0,5dB
  • Gain (MM): 40dB
  • Input impedance: 47Kohm
  • Analogue Inputs (96DC): 3 Line
  • 1 Phono (MM/MC high impedance)
  • Output (96DC): 1 Rec Out