The latest edition of our flagship Solo headphone amplifier – the SRGII (Studio Reference Green MK II) puts a real life force behind the music.
The Solo SRG II headphone amplifier combines conventional negative feedback with line driver load sensing to exert greater control over your headphones where it is needed. It therefore reduces or eliminates altogether the comb-filter effect most headphone impedance curves exhibit in the upper midrange and treble frequencies. It also ensures correct matching with the widest range of headphones and overcomes cable capacitance and inductance problems which could otherwise strip the music of its airy qualities and sound staging. The Solo SRG II headphone amplifier does everything better as well as giving a more weighty bass.
The Solo SRG II headphone amplifier has two line level inputs and a front panel input selector with centre off. It is housed in a strong anodized aluminium eurocard style enclosure.
Specifications
Headphone impedance range: 16 to 600 Ohms preferred; 8 to 2,000 Ohms acceptable
Headphone Jack: 1/4 inch (6.35mm) A gauge (BPO B gauge to special order)
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