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Graham Slee Solo Ultra Linear

Installment option available at check out page

Package Content
  • A headphone amplifier with an ideal balance of valvey smoothness with detailed clarity, and full frequency extension with "effortless" dynamics, makes the (solid state) Solo Ultra Linear Diamond Edition headphone amplifier a must-have companion for late night and personal headphone listening at home.

    The Diamond Edition Solo Ultra Linear headphone amplifier has a lower noise floor for improved in-ear monitor listening and a new output stage for better performance with difficult and low impedance headphones, yet it has the clout to drive high impedance headphones too.

    The Ultra-Linear voltage amplifier stage gives you the smoothness and warmth of a tube amp, yet with all the precision, fine detail, and punchy sound of the solid state amp it is. Plus, it won't wear out like tubes.

    If you have a Solo SRGII from mid-2004 onwards, you can upgrade to Ultra Linear Diamond Edition performance, with either our factory upgrade, or easy do-it-yourself upgrade. For full ULDE performance, don't forget to use the PSU1 linear power supply.

  • Superior imaging and great musicality
    Effortless dynamics
    Powerful without sounding boomy
    Valvey smoothness with detailed clarity
    Ultra low noise [suitable for In Ear Monitors]
    Input switch for two sources
    Modestly affordable asking price

  • Headphone impedance range 8 to 2,000 Ohms / 16 to 600 Ohms preferred
    Power output (rms, both channels fully driven at 1% THD) 32 Ohms: 140mW/channel; 600 Ohms: 30mW/channel
    Input sensitivity (for specified power output into 32 Ohms) 511mV rms
    Input impedance 37k Ohms at max volume; 50k Ohms at min volume
    Distortion (THD plus noise at 9 o'clock volume control setting (qtr power)) 10Hz-20kHz: better than 0.04%; 10Hz-1kHz: better than 0.02%
    Frequency response (±0,-3dB) 10Hz - 35kHz
    Output noise (22Hz-22kHz, quasi-peak/un-weighted) -95dB
    Channel balance better than 1dB
    Crosstalk Left to Right -56dB; Input to Input -68dB
    Input selector centre-off position non-shorting; -38dB at max volume with 2V rms input (ref: 1kHz and 10kHz)
    Output Stage Bipolar class AB
    Supply voltage 24V DC unipolar
    Size (approx.) W: 107 x H: 50 x D: 185 (mm) inc. controls

  • 01 X GRAHAM SLEE - Graham Slee's Solo Ultra Linear Headphone Amplifier
    01 X PSU1