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HRT Music Streamer HD

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The new Music Streamer HD is HRT's 'Flagship' USB DAC offering true high-end performance (true balanced design, true 24/192 resolution, full size XLR/balanced and RCA/single ended outputs) while still being powered through the USB interface.

The Music Streamer HD is an ultra high performance external sound card that connects between a computer, tablet, smartphone or any compliant host and either the balanced or unbalanced inputs on your audio system. USB connected and powered, the Music Streamer HD is simple to use and provides a level of performance that is unsurpassed at any price point. The Music Streamer HD approaches near theoretical limits for resolution and will astonish even the most demanding listener.  With its high performance asynchronous USB transceiver, differential current mode conversion and a fully differential signal path, the Music Streamer HD provides the perfect topology for ultra high resolution digital to analogue conversion. All power requirements for the Music Streamer HD is supplied from the USB bus, operation is simple, just plug into any available USB port and in a matter of seconds, you will be ready to experience a level of sound that will delight all.

With its jitter free interface, the Music Streamer HD will transform your computer into a better than CD quality source. Utilizing native Audio Class 1.0 or 2.0 drivers (available in all modern PC, Mac & Linux computers) simply select the appropriate audio class via the Music Streamer HD’s front panel switch, connect it to your computer via the included USB cable, connect the audio outputs to your audio system (RCA or XLR) and then select the Music Streamer HD as the audio destination on your computer and you are ready to experience sound at its best. LED indicators show the current sample rate (44k1, 48k, 88k2, 96k, 176k4 & 192k), the bit depth (16 or 24) as well as the state of the mute circuit; you will always know at a glance your systems operating mode.

High Resolution Technologies’ Music Streamer HD, designed and manufactured with pride in Southern California.


Full Scale Output

2.25 V RMS (RCA), 4.5V (XLR)

Output Impedance

50 Ohm (RCA), 50+50 Ohm (XLR)

Frequency Response (20 Hz / 20 kHz)

-0 dB / -.2 dB

Noise Floor (DC to 30 kHz)

5 uV RMS (RCA), 9 uV (XLR)

S/N Ratio (DC to 30 kHz)

113 dB (RCA), 114 dB (XLR)

S/N Ratio (A-weighted)

119 dB (RCA), 122 dB (XLR)

THD+N (1 kHz Full Scale)


THD+N (1kHz -20 dB)


Jitter contribution (DC to 30 kHz)

>144 dB below full scale


> 500M ohm

Sample Rate

up to 192 kHz

Bit Depth

up to 24 bit

USB transfer protocol


Power Requirements (USB Buss)

480 mA


3.8" x 6.0" x 3.0"




March 2013


Positive Feedback Online May/June2013
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