What are some of your favorite opamps usable in a Go-Vibe or similarly architected Cmoy? I know the OPA2227 is popular in DiY Cmoys and the Go-Vibes are commonly used with the AD8066 and AD8620. Are there any others worth considering that will work well in a 9V powered amp?

I am using a standard mini to mini interconnect with a Pocket Amp 2 and an external sound card connected to a laptop as source, as well as an iPod Shuffle. My 'phones of choice (at the moment) are Ety ER-6s. I am wondering if I would derive any sonic benefit by replacing this interconnect with a...

Having recently bought an external sound card, a Creative Sound Blaster MP3+ USB, I am wondering how to best connect this to the Pocket Amp I have on order. Whether or how much of an improvement this card offers is still something I am evaluating. My question is how I should connect an amp to...

I do most listening nowadays on an Apple iBook. The built-in sound card is not causing me any problems, but I am wondering if an external sound device like the iMic might improve sound, if only by being external. The iBook only has USB ports and a lineout, but no PC Card slot for a PCMCIA sound...