I've used 10 fake ALPS Stepped attenuators.. I agree that it has not so good mechnicals. It's not smooth when turning pot. And in the low volume region (min-11), it has steepy attenuation. But... the SQ blow all problem mentioned above It's better than Black Beauty and some boutique pots!!! It...

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I love silmic 2 too. But it is also hard to get in korea. I'm using Digikey too (for their cheap prices ^^) but their stock range and amout is VERY VERY limited (agree with fordgtlover). Recently, I'm orderd 150 pieces of RFS 470uF/35WV from Digikey, it's lead time takes about 3 month!! (And I...

The AT-HA5000 has no power regulation at all. But input stage and 2nd stage are powered by simple capacitance multipler. Here is equivalent circuit diagram from MJ Magazine (Japan) yeah. Cauhtemoc is right. It's 2sk2955 / j554 Power mosfet biased about 0.2 ampere, operating in Class A deeply.

TI's PCM2xxx series has standard USB Audio Class spec. So it can be used in Vista as well as XP. Alien DAC(PCM2702) and COSDAC v2(PCM2704) and many more...

Hakko 453 (Dash 20W) + 980 (Presto 20/50w) /w blade tips combo

OPA124 OPA637 AD797

absolutely RS-1!!!