Hi I wondered if anyone would be able to help with this question? I've been thinking of getting a set of quality in-ear headphones (Etymotics or Ultimate Ears) and wondered if a Sonic Impact T-Amp would make a good headphone amp? Is all that's required a knocked up cable connecting a 1/4" headphone jack to four cables that could be plugged into the speaker connectors of the T-Amp? Anyone done this or thought of doing it? Cheers