The Headstage Lyrix Pro is the commercial verion of the caffeine pro. Headstage Lyrix includes the bass boost and ADDS crossfeed, USB DAC, external switches, and a real case! It is also available in a standard version without DAC, crossfeed, gain, or bass boost, just like the Caffeine non-pro model.
I told you guys, don't dismiss these amps as some newbie making his first amps (no insult intended for any of you who fit that description
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See some for sale on eBay with 30 DAY MONEY BACK guarantee.
http://search.ebay.com/_W0QQsassZheadstage