OPA604

想自己upgrade 部CD機op amp, 用緊OPA604, 可以有mug好嘅選擇?

回復 2# kk_ho

唔好意思，打少左個字，用緊OPA2604....

1. Measure the voltage across GND to Pin 4, Pin 8.
2. If the Voltage is < 13V, KK suggest AD8620.
3 ...
kk_ho 發表於 2011-5-13 08:14

樓主，唔該晒，請問邊到地方容易買到！新仔一名!!

You need LM4562 or AD8620?
kk_ho 發表於 2011-5-13 10:56

唔該KK, 剛剛度完，電壓係15V，我唸要用LM4562. 另外，睇到隻LME49720, 同4562差唔多，有什麼不同？

Use LME49720 la. The spec is same. But the sound quality is diff.

where I can buy it? thx


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回復 11# alant

Thanks to all C-hing suggestion. In fact, I have just got 1 pair of LME49720 today and install for my CDP

Comparing with OPA2604, more details, warm and tube feeling, but, I feel it a little bit slow pacing. Is there any choice that I can also try to test? prefer more faster

thx

Assuming your LME49720 is ceramic package of LME49720NA (8-DIP), then metal can package of either  ...
alant 發表於 2011-5-13 23:55

Already, it is a metal can package. So, I just wonder any choice that I can try to play....