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Graham Slee Solo SRGII headphone amplifier
Graham Slee Solo SRGII headphone amplifier

Graham Slee

Solo SRGII headphone amplifier

The Solo Studio Reference "Green" Mk.II — SRGII for short, is the result of 10 years of innovative headphone amplifier development.

Brand: Graham Slee
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£405.00

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The Solo Studio Reference "Green" Mk.II — SRGII for short, is the result of 10 years of innovative headphone amplifier development.

Headphone impedance range 16 to 600 Ohms preferred; 8 to 2,000 Ohms acceptable
Power output (rms, both channels fully driven) 32 Ohms: 27mW/channel; 600 Ohms: 23mW/channel
Distortion (THD plus noise, ref 1kHz) 0.02%
Frequency response (-3dB) 32 Ohms load: 27Hz - 35kHz; 600 Ohms load: 10Hz - 39kHz
Output noise (20Hz-20kHz, CCIR quasi-peak) -84dB
Input sensitivity (for specified power output) 32 Ohms: 250mV rms; 600 Ohms: 775mV rms
Channel balance better than 1dB, "9 to 3 o'clock" positions
Crosstalk Left to Right -57dB; Input to Input -68dB
Mute Signal off mute, non-shorting
Output Stage Bipolar class AB
Supply voltage 24V DC
Size (approx.) W: 107 x H: 50 x D: 185 (mm) inc. controls

Originally made for studio monitoring, the Solo SRGII still finds use in commercial editing studios where it captures edit points so elusive to other headphone amps. It was also supplied to the BBC, modified to accept PO 316 (BPO) jack plugs.