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Unison Research uPhono+ Phonostage
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Unison Research uPhono+ Phonostage
Unison Research uPhono+ Phonostage
Black
22 Saint Kilda Road
22 Saint Kilda Road
Suite 2.02
St Kilda VIC 3182
Australia
uPhono+
MM / MC Phono Pre-amplifier w/Volume Control, Headphone Amplifier & Analog to Digital Converter with Digital Outputs. A veritable Swiss knife of functionality. Features two on-board linear power supplies; one powering the analog section and one powering the digital section. No external wall-wart power supply here.uPhono+ Analogue Features
- Moving Magnet (MM) stage gain: 38dB @ 1kHz
- Moving Coil (MC) stage gain 58dB or 69dB @ 1kHz selectable with dip-switches
- MM cartridge input with 4 loading capacitor values (100/200/320/420pF) selectable with dip-switches
- MC cartridge input with 7 loading resistor values (5/10/25/100/250/500/1kOhm) selectable with dipswitches
- Fixed level analogue output
- Variable level analogue output: level varied with front panel volume control
- High-current headphone stage: can be used with headphones from 16 to 600 ohms impedance
- Subsonic IEC anti-rumble filter with override dip-switch
- Optimized PCB layout and widespread use of SMD componentry to minimize the length of the signal path
- Alps® «Blue Velvet» potentiometer that simultaneously adjusts the volume of the headphone stage and the level of the variable output
- Low noise internal mains power supply with totally independent analogue and digital power supplies
uPhono+ Digital Features
- USB 24bit/96kHz max. sample rate to record your vinyl discs on PC and save them in
high-resolution formats - Toslink (96kHz) digital optical output
- S/PDIF (96kHz) digital coaxial output
- A/D conversion carried out using the Cirrus Logic CS5341 IC
- USB asynchronous transmission using the Bravo SA9137 IC
- Digital optical and coaxial transmission using the TI DIT4096 IC
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Analogue Inputs |
· Moving magnet cartridge (MM) / High output moving coil (MC) · Low and ultra-low moving coil cartridge (MC) |
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Analogue Outputs |
· Fixed level analogue output · Variable level analogue output · Headphones (16-600Ω): ¼ inch (6.35mm) stereo jack socket |
|
Digital Outputs |
· USB B-type for connection to a PC (up to 24bit/96kHz) · Optical Digital · Coaxial Digital |
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Input Impedance |
· MM : 47kΩ+100/200/320/420p · MC : 20/50/100/150/250/500/1kΩ+1nF |
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System Gain at 1kHz |
· MM : 38dB · MC : 58dB / 69dB selectable |
|
Nominal output level |
· 316mVRMS (-10dBV) |
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Input sensitivity for nominal output level |
· MM : 3.36mVRMS · MC (58dBB) : 0.336mVRMS · MC (69dB) : 0.1mVRMS |
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Signal/Noise Ratio |
· MM : -80dB · MC (58dB) : -64dB · MC (58dB) : -60dB |
|
RIAA curve accuracy |
· +/- 0.3dB from 20Hz to 30kHz |
|
IEC anti-rumble filter |
· -3dB at 20Hz and 6dB/octave |
|
Overload margin (headroom) |
· 30dB |
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THD+N at 1kHz |
MM : 0.018% (10mVRMS in) MC (58dB) : 0.12% (1mVRMS in) MC (69dB) : 0.12% (1mVRMS in) |
|
Line output impedance |
Fixed : 824Ω Variable : 824Ω |
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Headphone stage |
Output level : 2.18VRMS Max THD+N: 0.07% (1kHz /32Ω) |
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USB A/D |
Resolution : 16/24 bit Sample rates : 8, 16, 32, 44.1, 48, 88.2, 96kHz |
|
Coaxial digital output |
0.5Vp-p a 75Ω / 96kHz max. |
|
Mains voltage |
220-240V AC or 100-120V AC according to the country of use |
|
Power |
6.6W |
|
Dimensions |
(H x W x D) 82.5 x 216mm x 251mm (3.25 x 8.5 x 9.9 inches) including feet, connectors and knobs |
|
Weight |
2.6Kg |
User Reviews
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