Graham Slee Solo Ultra Linear Headphone Amplifier

Graham Slee Solo Ultra Linear Headphone Amplifier

Free UK Delivery



Graham Slee Solo Ultra Linear Headphone Amplifier

Designed and built for music lovers who want to hear their recordings in perfect fidelity, the Graham Slee Solo Ultra-Linear Diamond headphone amplifier allows your music to naturally breathe and flow in a way that live music does and refuses to get overwhelmed when the music becomes complex.

The lack of treble glare and superb clarity throughout the frequency range is due to the low distortion at all frequencies, and it's very wide bandwidth with low negative feedback. A very high input overload margin allows it to remain uncompressed when fed with dynamic music, whilst it's high current output stage can drive a very wide variety of headphones of different impedance. The unit comes with a plug top power supply as standard, whilst the Graham Slee PSU1 regulated DC power supply is available as an optional upgrade for improved sound quality.

Who is Graham Slee?

Graham Slee is a small, enthusiastic manufacturer of realistically priced, high-performance phono stages and headphone amplifiers, designed and built by hand in Yorkshire since 2003. Very positively reviewed by the UK and international magazines, demand for these products has been overwhelming as the world's hifi enthusiasts can't believe the performance on offer for the price asked.

 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 


Providing your item is in stock, the order is usually dispatched within 24 hours. Postage and packing is completely free for orders over £100*. Out of stock items will be dispatched as soon as they become available, out of stock items can take between 4 to 21 days for dispatch.


Orders are sent via our couriers' DPD on a next-day-delivery service and usually, take between 1 and 3 days. 


Please use this link to find more detailed delivery information.


*We ship free of charge to mainland UK addresses, excluding the Scottish Highlands or 'Out-Of-Reach' Scottish locations. Please consult the post-codes below to see if your location falls within this category. If you are still unsure, please contact us on 01432 354921. We also ship to Northern Ireland, Channel Islands, Scilly Isles, Scottish Isles and Scottish Highlands, however, delivery to these locations will incur a charge and can only be sent via a 2-day service.

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