HiFi版 - 有了FIIO E7,没去买E11，反倒是买了E9。 |
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d******0
发帖数: 22800 | 1 amazon上93刀 E9
http://www.amazon.com/FiiO-Desktop-Headphone-Amplifier-Dock/dp/
“E9 uses TI OPA2134 op amps and the TI TPA6120 for the output buffer. The
OPA2134 is optimized for audio use and has impressive specs. The TPA6120 is
marketed for headphone applications and offers high power, high current,
extremely low distortion and wide bandwidth. It’s a stereo IC with both
channels on a single surface mount IC with a large heat sink pad on the
bottom. It’s used in a number of high-end headphone products. The output is
relay switched and hopefully there’s a DC protection circuit for the
headphones. The FiiO description says it merely “protects amplifier output
” so it’s possible the relay only eliminates turn on/off noises and
protects the TPA6120 rather than the headphones. It appears to be AC coupled
so I couldn’t simulate a failure by running DC into it.”
http://nwavguy.blogspot.com/2011/05/fiio-e9-headphone-amp.html
这个介绍比较全面。一半偶看不懂就是了。 | a**********e
发帖数: 5124 | 2 你有E7 这个可以理解 貌似E7要出升级版的 24位解码的
is
is
output
【在 d******0 的大作中提到】
: amazon上93刀 E9
: http://www.amazon.com/FiiO-Desktop-Headphone-Amplifier-Dock/dp/
: “E9 uses TI OPA2134 op amps and the TI TPA6120 for the output buffer. The
: OPA2134 is optimized for audio use and has impressive specs. The TPA6120 is
: marketed for headphone applications and offers high power, high current,
: extremely low distortion and wide bandwidth. It’s a stereo IC with both
: channels on a single surface mount IC with a large heat sink pad on the
: bottom. It’s used in a number of high-end headphone products. The output is
: relay switched and hopefully there’s a DC protection circuit for the
: headphones. The FiiO description says it merely “protects amplifier output
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