headphone amplifier, DAC, monitor controller
ago, we launched the model 901 headphone amplifier. 4 years later, the Grace Design m903, which set the standard for a new category of compact, precision playback tools.
Today, we proudly unveil the Grace Design m903, which is simply the most refined and feature
rich headphone amp, DAC and compact monitor controller available.
The Grace Design m903
keeps everything great about its predecessors, adds some useful new features,
and ups the ante with even more breathtaking audio performance. A new volume
control provides higher headroom and lower distortion and noise. New generation
DAC's and ultra-low noise balanced current to voltage converter yields even
more musical performance compared to the m902. Improved s-lock PLL circuitry
delivers even lower phase noise and jitter. An improved power supply isolates
headphone amplifiers, line amplifiers, DAC's and digital logic, resulting in
lower noise and distortion.
most exciting improvement is the all new high speed USB interface. This cutting
edge technology provides a completely asynchronous data transfer mode which
allows for bit-perfect USB playback with zero interface induced jitter. This
new interface affords standard driverless USB Class 1 operation on Windows and
Mac up to 24bit/96kHz and USB Class 2 audio for 24bit/192kHz operation on
Windows and Mac (drivers needed for 192kHz operation under Windows). This is
computer-based audiophile playback, perfected.
crossfeed circuitry is even more useful and includes a gentle compensation to
eliminate the perceived loss of low frequency content. Both balanced and
unbalanced line outputs are now standard, with individual volume controls for
each. We have even included a mono mode for checking a mix for phase issues or
simply monitoring in mono. These improvements cement the Grace Design m903 as the perfect
compact, audiophile grade monitor controller, even for larger scale production
environments with more than one set on monitors.
complement of analog and digital inputs are provided (balanced, unbalanced,
AES3, S/PDIF, TOSLINK and USB), which are selectable via a precision rotary
front panel switch. And we offer an updated optional infrared remote control,
which provides essential control for anyone working out of reach of their Grace Design m903.
the tradition of unmatched audio performance and functionality, the Grace Design m903 is now
the ultimate solution for high resolution audio playback. From the very top
mastering engineers to the most discerning audiophiles – it is a must for
anyone searching to discover new depths in music and sound.