Violinist Joshua Bell's beautifully recorded "Short Trip Home" CD was magnificent with the MicroStreamer and the UE 900. This recording has a lot of bass, and the MicroStreamer outdid the DragonFly by better clarifying the lowest frequencies. I also tried the MicroStreamer with Ultimate Ears UE 900 in-ear headphones while listening to Jakob Dylan's "Women and Country" album. This headphone model's bass can sound muddy when I play it with my iPod Classic, but the MicroStreamer firmed up the low end, the stereo soundstage was more spacious, and the treble was sweeter, too. The V-Moda M-100 really sounded great with the MicroStreamer. I can't say there were huge sonic differences between the HRT and AudioQuest, even when I played 96-kHz/24-bit high-resolution files. To test the headphone amps, I started with two very different headphones, a high-impedance (300 ohm) Sennheiser HD 580 and a low impedance (35 ohm) Hifiman HE-400 both are full-size headphones. Compared with the $249 AudioQuest DragonFly USB DAC, the MicroStreamer is a tiny bit bigger.
The MicroStreamer impressed from the get-go the sound was highly detailed and pure.
The HRT MicroStreamer (left), AudioQuest DragonFly (right) As firmware improvements become available, the MicroStreamer can be updated from your desktop. LEDs display the sample rate (32k, 44.1k, 48k, 88.2k, and 96k) of the music being played. HRT also claims that the MicroStreamer can be used as a USB DAC with Samsung Galaxy S3 (and the upcoming S4) over its MHL connector (contact HRT about the details of that setup). Setup is supereasy just hook up the included USB cable between the MicroStreamer and USB port on the host computer or tablet and select it as the default device. The MicroStreamer's two outputs have separate signal paths, digital filters, and amplifier circuits, each one is optimized for its application. The MicroStreamer has two 3.5mm output jacks, a fixed-level jack that connects your computer and home stereo, or powered loudspeakers and a variable output headphone jack. The aluminum case is made in China, and the metalwork finishing is done here. It was designed in the U.S., and the little guy's circuitboard's components are mounted in Southern California. It's also a high-quality headphone amplifier. It works as an external sound card for computers, tablets, and some smartphones.
The company's newest model, the MicroStreamer, is a tiny thing, just 2.5 inches by 1.2 inches by 0.4 inch, and since it's USB-powered it doesn't have a power supply or require batteries. High Resolution Technologies makes some of the very best and most affordable digital-to-analog converters on the market.
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