I liked my Cardo Scala Q2 bluetooth headsets but could never get the volume loud enough with external speakers. I also had a terrible time getting the auxiliary volume up to a reasonable level, because the 3.5mm jack in the dock wasn’t powered by the headset like the other channels were.
I started researching headphone amplifiers, and found that the products quickly fell into two camps: gimongous amplifiers powered by AC power / more batteries than a North Korean bathtub submarine or tiny portable amplifiers that offered less power but more portability. Adding to the decision making problem was the scarcity of information on the Internet, and/or that the best smaller amps cost almost as much as I paid for the Scalas in the first place.
My memory is fuzzy at this point, but I jumped on eBay trying to find a less-expensive source for one of the more popular amps on ADVrider.com when I stumbled up on the FiiO headphone amplifier. I am pretty sure I was reading about the previous generation that ran off of two AA batteries.
I put in an order from a (extremely reputable, I’m sure) seller in Hong Kong and waited for the awesome power to arrive.
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