Someone on Ebay is offering "5-24V REGULATED POWER SUPPLY ELECTRONIC KITs". It's a buy-it-now price of $22.50 plus shipping ($8.84 for me on East Coast.) Would such power supplies be a good thing to use with a Porta Corda II or a Zmoy non-portable amp...

sorry about blank post

Someone posted a Porta Corda II yesterday. http://www4.head-fi.org/forums/showthread.php?t=123409 They are asking $120 in the thread above. I just paid $140 for one and I love it. It won't rock my high-impediance HD580s (300 ohms) but it sounds great on everything else AND has the...

Quote: Originally Posted by GoRedwings19 My advice is too avoid it. The Standard Earmax is underpowered and will struggle. Not to mention if you upgrade to other cans then your money has been wasted on the amp. The Emp's are a more warm, refined listen. That's what I needed to...

I've got HD580s and I'm wondering what a fair price would be for an Earmax head amp. The unit is in very good condition with 110 voltage input. Also, would this amp be a good match for driving my 580s with a bit of volume? I need lots of volume if I'm using an MP3 player as source. I had...