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Graham Slee SOLO Headphone amplifier 耳放开箱组照

2009年5月7日 3 条评论

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:
 
 Two line level stereo inputs via gold plated phono sockets

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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