This is also a very small amplifier, undoubtedly the smallest in overall dimensions that I own. The case is tough extruded aluminum and it has a very solid feel to it. It is made by Little Tube and is one of a series of solid-state and tube amplifiers. You can find more information on it at www.little-tube.com if you're interested in the type of chip it uses and other details. It has internal, lithium-ion batteries that are recharged through a jack at the bottom of the unit using the (included) wall-wart power supply.
Oddly, the input and headphone jacks seem slightly oversized in diameter. Most of the 1/8" plugs I use are slightly loose when inserted, to the point that some are actually intermittent in one channel. I could probably have them replaced, but it's a fairly minor issue. Perhaps Little Dot got some slightly out-of-spec connectors.
I am, however, a bit disappointed in the power output of this unit. While I have not measured it, the unit simply does not have the gain that most of my other amps have for a given input level. The PA2V2, for example, uses roughly the same voltage power source as this amp, but it plays significantly louder at full gain. On the other hand, for virtually all reasonable uses, this amp is plenty powerful enough.
QUALITY: Excellent quality and durable case.
PERFORMANCE: Very clean sound, but gain/power output is not on the same level as most of my other amps.
PROS: Tiny and very easy to carry, uses rechargeable LiIon batteries, strong aluminum case, includes patch cord and charger.
CONS: On-off control is integrated into volume control...you have to reset the volume whenever you turn it off, noticeably less gain than other amps.
VALUE: Very good value for the price. Quality is obvious during first use.
OVERALL OPINION: I take this unit along with my Cowon U2 and my Ultimate ears when I want to save space and weight. If these are not a concern, I usually take my Cowon M5 and another amplifier, depending upon what type of headphones I plan to use. This is a good buy for someone looking for a tough little amp for traveling and who doesn't need to listen at high volume levels.
Back to list of amplifiers for portable players.