GRAHAM SLEE SOLO SRGII HEADPHONE AMPLIFIER WITH PSU1 POWER SUPPLY
The Graham Slee Solo headphone amplifier is the choice
of several studios and editing suites for one very
important reason - the Solo headphone amplifier makes
it easy to hear the editing cues. These are musical cues
that are part of the performance, but they happen so
quickly that lesser headphone amplifiers are not able to
resolve quickly enough and thus mask. This makes the
editing suite's job very difficult indeed. The
wide-bandwidth performance of the Solo headphone amplifier
reproduces music with the highest resolution. Coupled with its
excellent dynamics, the Solo headphone amplifier is the obvious
choice for the professional user or for the pristine listener
who wants to hear music as it was originally recorded. The Solo is hand built and fully specification tested in
England using selected high quality components to achieve its
remarkable resolution and sound quality.
Graham Slee has over 30 years industry experience and has been
"behind the scenes" designer in both professional and
hi-fi audio, designing and developing a number of preamps and
Graham Slee Solo SRGII Headphone Amplifier Specifications
- Headphone impedance range: 16 to 600 Ohms preferred; 8 to 2,000 Ohms acceptable
- Power output (rms, both channels fully driven: 2 Ohms: 27mW/channel; 600 Ohms: 23mW/channel
- Distortion (THD plus noise, ref 1kHz): 0.02%
- Frequency response (-3dB): 2 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 (nominal)<
- Dimensions (mm): 107w x 50h x 185d (including controls)
If you need your headphone amp to tell you exactly what is on a recording over and above anything else, you can stop reading the test now and go and buy the Solo SRGII. The detail retrieval it manages to conjure up is truly exceptional and this gives the Spektor and Melnikov pieces in particular an immediacy that is extremely impressive. It has no trouble discerning activities from the supporting strings in the Schumann piano trio that are lost in the mix elsewhere. This is then coupled with a tonality with voices and instruments that is unfailingly believable.
The really good news is that none of this seems to affect the Solo SRGII's ability to pick up the pace and deliver with the two more uptempo tracks as well. It is able to deliver the thumping bassline of the Satriani piece with impressive agility and timing."
- HiFi Choice, November 2015
"The strengths of the Solo Headphone Amplifier are in the
extra high frequency extension, a superb transient response and
an unsurpassed dynamic range. Percussion, flutes and bells all
have an extra sparkle that breathes life in to the music"
- Phil Gold, EnjoyTheMusic.com
"If you are serious about headphones go and have a listen
to the Solo - and be prepared to buy it there and then"
- What Hi-Fi? Sound &
Vision, 5 Stars
"This unassuming little box delivers a double-whammy of
breathtaking resolution and gripping dynamics"
- What Hi-Fi?
Sound & Vision, 5 stars, Ultimate Guide
"Without a shadow of a doubt, the Solo is a very
accomplished little amplifier"
- Rock Grotto. To read the full review, click
"...if you're in the market for a great sounding headphone
amp and don't want to drop the kilo-bucks needed for "the
other guys" amp, I'd seriously consider the Graham
- TNT-Audio. To read the full review, click here