Graham Slee SOLO Headphone amplifier 耳放开箱组照
Graham Slee SOLO Headphone amplifier 是英国出产的著名耳机放大器(以下简称:耳放)。它以线路简洁,推动力大著称,是 HD650、AKG701 这样的大型耳机的良配。今天下午,Post Australia 送来了邮包,以下是开箱后的组照:
The Solo Headphone Amplifier Features:
Front panel source selector switch with “mute” position featuring gold “dry-switching” contacts
High resolution volume control accurate in any position
Auto-adjusting output to any headphone impedance
Power in reserve for inefficient headphones
Excellent bass extension
Short circuit protection
Choice of “Intro” plug-top power supply or “PSU1″ in-line power supply
Specification
Headphone impedance range: 8 to 2000 Ohms
Output driving impedance: 120 Ohms
Rated output: +14.5dBV rms into 600 Ohm load
Short circuit duration: continuous
Distortion THD+N: 0.02% @ 1 kHz *
Frequency response: 12Hz to 150 kHz (-1dB) *
Output noise: -88dB (A) / –82dB (CCIR Quasi-peak 20Hz-20kHz) *
Input sensitivity: 346mV rms (-7dB) for rated output
Gain: 22.5dB into 600 Ohm load
Sound pressure level gain V load: 8 Ohms: +23dB (239mW rms)
30 Ohms: +23dB (205mW rms)
120 Ohms: +21dB (127mW rms)
300 Ohms: +18dB (73mWrms)
500 Ohms: +17dB (44mW rms)
600 Ohms: +16dB (43mW rms)
1,200 Ohms: +14dB (25mW rms)
1,700 Ohms: +12dB (18mW rms)
2,000 Ohms: +11dB (14mW rms)
Supply voltage: 24V DC (nominal) 90mA (max.)
Size (approx.): W: 107 x H: 50 x D: 185 (mm) inc. controls
*Ref: Volume control set 6dB below rated output into 600 Ohms
厂家链接:http://www.gspaudio.co.uk/headphoneamps/soloheadphoneamplifier.htm
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