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发表于 2010-2-27 03:24:08
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"是啊,高级的耳放完全买不起,只能在2k左右的价格寻么一款,目前正在研究 Audiotrak DR.DAC2 DX 这个 DAC 兼耳放,但是资料太少了……"
get a current-feedback opamp, usually as dsl modem driver. and configure it as a headphone amp.
it will beat 99.99% of the headphone amps out there.
you can get the whole whole thing done in less than 10 rmb.
I have quite a few based on ad812ays ($1 each), or ths6012/tpa6120 (the same chip), etc.
those chips are usually rated at 500ma output/ch, and can driver even the least efficient headphones to ear-bleeding levels.
and their specs are such that no discrete amps can touch those chips. |
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