Unison Research uPhono+ Phono MM/MC pre amplifier

UPHONO+

The uPhono+ is a multifunctional phono preamplifier with a high-resolution A/D converter as well as three digital outputs and a high-impedance headphone amplifier.

uPhono+ Digital Features:
USB 24bit/96kHz max. to transfer your vinyl records to your PC with the highest sound quality
Toslink (96kHz) D/A output
S/PDIF (96kHz) digital coaxial output
A/D conversion Cirrus Logic CS5341 IC
USB Transmission Bravo SA9137 IC
Optical and coaxial transmission TI DIT4096 IC

uPhono+ Analog Features:
Moving Magnet (MM) gain: 38dB @ 1kHz
Moving Coil (MC) gain 58dB or 69dB @ 1kHz adjustable with micro switch
MM input with 5 adjustable capacitances (100/200/320/420pF) + 1nF
MC input with 7 adjustable impedances (5/10/25/100/250/500/1kOhm)
Fixed output level and a variable headphone output
Volume control of the headphone output using high-quality Alps® «Blue Velvet» potentiometer
Headphones from 16 to 600 ohms can be connected
Switchable subsonic filter
Modern circuit design using SMD technology
Separate power supply for analog and digital section

Technical specifications:

• Analog inputs:
  • Analog inputs switchable for all MM
  • High-output MC and ultra-quiet MC systems
• Analog outputs:
  • Fixed output level
  • variable headphone output
  • Headphones (16-600O): (6.35mm) jack plug
• Digital outputs:
  • USB B port - connection to PC (24bit/96kHz)
  • optical digital
  • coaxial digital
• Input Impedances:
  • MM 47kO + 100/200/320/420nF
  • MC 5/10/25/100/250/500/1kO + 1nF
• Gain at 1kHz:
  • MM 38dB
  • MC 58dB / 69dB adjustable
• Nominal output level:
  • 316mVRMS (-10dBV)
• Input sensitivity for the nominal output level:
  • MM 3.36mVRMS
  • MC (58dB) 0.336mVRMS
  • MC (69dB) 0.1mVRMS
• Signal-to-noise ratio:
  • MM -80dB
  • MC (58dB) -64dB
  • MC (69dB) -60dB
• RIAA Accuracy:
  • +/- 0.3dB from 20Hz to 30kHz
• Subsonic filter:
  • -3dB at 20Hz and 6dB/octave
• Overdrive Resistance:
  • 30dB
• Distortion level at 1kHz:
  • MM 0.018% (10mV in) RMS
  • MC (58dB) 0.12% (1mV in) RMS
  • MC (69dB) 0.12% (1mV in) RMS
• Line Output Impedance:
  • Fixed 824O
  • Variable 824O
• Headphone amplifier stage:
  • Output level 2.18V RMS max.
  • THD+N 0.07% (1kHz /32O)
• USB A/D:
  • Resolution 16/24 bit
  • Sample rates - 8, 16, 32, 44.1, 48, 88.2, 96kHz
• Coaxial digital output
  • 0.5Vp-p at 75O / 96kHz max.
• Mains voltage:
  • 220-240V AC or 100-120V AC depending on country
• Dimensions:
  • HxWxD 82.5mm x 216mm x 251mm including feet, connectors and knob
• Weight
  • 2.8kg