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::: ÇöÀçÀ§Ä¡ HOME>°Ô½ÃÆÇ > ½ÅÁ¦Ç°¼Ò°³
Á¦ ¸ñ  ±×·¹À̽º m903 DAC Ãâ½Ã ÀÛ¼ºÀÚ  ¼­¿ïÀüÀÚ
¹ø È£   175 ÀÛ¼ºÀÏ  2011-08-25 Á¶È¸¼ö  3929
³» ¿ë  
 
 

NEW! reference headphone amplifier, DAC, monitor controller


M902¿Í ´Ù¸¥Á¡

 Â÷¼¼´ë DAC¿Í ÃÊÀú³ëÀÌÁî ¹ß¶õ½ºµå Àü·ù-Àü¾Ð ÄÁ¹öÅÍ°¡ »ç¿ëÀ¸·Î  ´ÙÀ̳»¹Í ·¹ÀÎÁö°¡ 10dB °³¼±
- ½ÅÇü °í¼Ó Àý¿¬ Á¢Áö ó¸® ºñµ¿±â USB ÀÔ·Â
- Çìµå·ëÀº ³ô¾ÆÁö°í ¿Ö°î°ú ³ëÀÌÁî´Â ÁÙ¾îµç ½ÅÇü º¼·ý ÄÁÆ®·Ñ
- s-Lock PLL ȸ·Î °³¼±À» ÅëÇÑ ³ëÀÌÁî/ÁöÅÍ °¨¼Ò
- X-Çǵå ȸ·Î °³¼±À» ÅëÇÑ ÀúÁÖÆļö ¼Õ½Ç ¹æÁö
- ÇìµåÆù ÆÄ¿ö ¾ÚÇÁ, ¶óÀÎ ¾ÚÇÁ, DAC, µðÁöÅÐ ·ÎÁ÷À» ºÐ¸®½ÃÄÑ ÁÖ´Â Àü¿øºÎ ±¸Á¶ °³¼±


m903

 

Ten years ago, we launched the model 901 headphone amplifier. 4 years later, the m902, which set the standard for a new category of compact, precision playback tools. Today, we proudly unveil the m903, which is simply the most refined and feature rich headphone amp, DAC and compact monitor controller available.

The 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.

Perhaps the 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.

New 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 m903 as the perfect compact, audiophile grade monitor controller, even for larger scale production environments with more than one set on monitors.

A full 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 m903.

Advancing the tradition of unmatched audio performance and functionality, the 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.

Available soon!

par

m903_rearpanel

  • features
  • video
PRELIMINARY SPECIFICATIONS ANALOG IN
Gain
Headphone output, volume at max, trim at +9.5
+15dB
Balanced Line output, volume at max, trim at +9.5
+14dB
Unbalanced Line output, volume at max, trim at +9.5
+11dB
Frequency Response
@ 0dBu out +/- .25dB
22Hz 120kHz
@ 0dBu out +/- .5dB
12Hz 260kHz
@ 0dBu out +/-3dB
4Hz 600kHz
Maximum Input Level
Balanced Input
+22dBu
Unbalanced Input
+22dBu
Maximum Output Level
Unbalanced output @1kHz, 100k Ohm
+22.5dBu
Balanced output @1kHz, 100k Ohm
+27dBu
Headphone output @1kHz, 50 Ohm load
+20.4dBu
Impedance
Balanced Input
106K Ohms
Unbalanced Input
53K Ohms
Balanced Output
95 Ohms
Unbalanced Output
47.5 Ohms
Headphone Output
1.2 Ohm
Dynamic Range
@ 0dB gain
TBD
@ -10dB gain
TBD
THD+N
Headphone +10dBu out, 50 Ohm load, SMPTE 4:1
<0.01%
Headphone +10dBu out, 50 Ohm load
<0.008%
Unbalanced Line Out +10dBu out
TBA
Balanced Line Out +10dBu out
<0.002%
Attenuator
Channel matching
<0.05dB
Attenuator Range
99.5dB
 
SPECIFICATIONS D/A CONVERTER
Input Sample Rate
32, 44.1, 48, 88.2, 96, 176.4, 192kHz
THD+N
44.1kHz, 24bit, 1kHz, +20dBu out
<0.002%
Noise Floor
0dB gain, 22-22kHz
-94dBu
0dB gain, A-weighted
-97dBu
Output level
Unbalanced Output @ 0dBFS
TBD
Blanced Output @ 0dBFS
TBD
Power Requirements
120VAC
.16A
230VAC
.08A
Dimensions and Weight
Dimensions
H1.7 x W8.5 x D8.25
Weight
5 lbs (2.2kg)
specs
 
±×·¹À̽ºµðÀÚÀÎ M903 µå¶óÀ̹ö ¾÷·Îµå

¸ÆÄÄÇ»ÅÍ¿¡¼­´Â ÇÊ¿ä ¾ø°í À©µµ¿ì ¿¡¼­¸¸ ÇÊ¿äÇÕ´Ï´Ù.

ÁÖ°í ¸µÅ© °É¾î µå¸®°Ú½À´Ï´Ù.

ÂüÁ¶Çϼ¼¿ä.
 
¡Ø¸Þ´º¾ó 11ÆäÀÌÁö¿¡ ÀÖ´Â USB ¼ÂÆà ¸ðµå¸¦ ÂüÁ¶ÇÏ¿©¾ß µå¶óÀ̺갡 ±ò¸³´Ï´Ù!

http://www.gracedesign.com/support/support.htm
 
 
 
 

USB class1 ¿Àµð¿À ¸ðµå´Â 96kHzÀÌÇÏ ¿Àµð¿À ÆÄÀÏÀ» Àç»ýÀ» Áö¿øÇÏ°í 96kHZÀÌ»ó ÆÄÀÏÀÇ Àç»ýÀ» À§Çؼ± USB class2 ¿Àµð¿À ¼¼ÆÃÀ» »ç¿ëÇÒ ÇÊ¿ä°¡ ÀÖ´Ù.

¼¼Æà ÀüÈ­

º¼·ý ³ëºê¸¦ °è¼Ó ´©¸£¸é ¼Â¾÷ ¸Þ´º°¡ ³ªÅ¸³­´Ù. ÀÌÁ¦ ³ëºê¸¦ ¿òÁ÷¿© USB class ¼±Åà ¸Þ´º·Î À̵¿ÇÑ´Ù. U1 ȤÀº U2·Î ³ªÅ¸³ª°Ô µÈ´Ù.

³ëºê¸¦ ´­·¶´Ù ¶¼¸é °¢ ¸ðµå »çÀÌ¿¡ ÀüȯÀÌ ÀÌ·ç¾îÁö°í U1Àº class 1 USB ÀÛµ¿À» U2´Â class 2 USB ÀÛµ¿À» ³ªÅ¸³½´Ù.

³ëºê¸¦ °è¼Ó ´­·¯ ¼³Á¤À» ÀúÀåÇÏ°í ¼Â¾÷ ¸Þ´º¸¦ ³ª¿Â´Ù.

 
 
 
 
 
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