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- Headphone ImpedanceLast edited: 8/18/12
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- Headphone Impedance
Portaphile 627 Review - Page 2
Yeah, it's like a blue headlight. I'll have to A-B it with the Alo National, because I haven't listened to the National since I got the Portaphile. Without A-Bing it, with the caveat that memory is unreliable, I can say that I'm enjoying my music a whole lot better with the Portaphile... it seems much more weighty, dynamic, engaging, and alive.
Yes, the top of the board is pretty vacant which can be little misleading. There are 13 IC's on the bottom of the board including three OPA627's and six BUF634's and all of the audio section thin film SMD resistors. Hopefully someone can post a pic of the bottom of the board.
My review was completed with customs, you might make 6 but that's really a stretch. It's a class A amp so it uses quite a bit of power. I got 5 hours max out of mine but if you listen quieter than I do you might just make 6.
Finally got around to posting pics of the right side of the bread board within the original review. Should have everything you need from those pics. Regarding the battery life, I use mine at work so it's plugged in all day as well. Definitely gives me at least four hours of life when I take it with me after that. I don't think the charger supplies quite enough current (I confirmed this with Cesar) for a full charging cycle while the amplifier is on so you must turn the amplifier off, unplug the charger and the plug it back in to restart the charging cycle and get a full charge.
- Portaphile 627 Review
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