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GRACE DESIGN m920
m902/m903 ·¹ÆÛ·±½º ¸ð´ÏÅÍ ÄÁÆ®·Ñ·¯·Î ÇÏÀÌÆÄÀÌ ¾ÖÈ£°¡µé¿¡°Ôµµ ÀÌ¹Ì Àͼ÷ÇÑ ±×·¹À̽º µðÀÚÀÎÀÌ, ´Ù½Ã±Ý ¾÷±×·¹À̵åµÈ ½ÅÁ¦Ç°À» Ãâ½ÃÇÏ¿´´Ù. m920 °íÇØ»óµµ ¸ð´ÏÅ͸µ ½Ã½ºÅÛÀº m903¿¡¼ ¿ÜÇüÀûÀΠƯ¡Àº ±×´ë·Î À¯ÁöÇÏ¸é¼ ÇÏÀÌÆÄÀÌ ¿Àµð¿ÀÀÇ ÃֽŠƮ·»µå¿¡ ¹ß¸ÂÃá ¼º´É ¹× ±â´É °³¼±¿¡ ÁÖ¾ÈÁ¡À» µÐ Á¦Ç°ÀÌ´Ù.
º»Ã¼¿¡ Ç¥½ÃµÇ´Â Á¤º¸°¡ 2°³ÀÇ ¹®Àڷθ¸ ³ªÅ¸³ª´Â ±â´ÉÀû Ư¡ ¶§¹®¿¡ Æø³ÐÀº ±â´ÉÀ» ´Ù È°¿ëÇϱâ À§Çؼ´Â ¸Å´º¾óÀ» º¸¸ç ¾î´À Á¤µµ ³ë·ÂÀÌ ÇÊ¿äÇÔÀº m903 ¸®ºä¿¡¼ ¾ð±ÞÇß´ø ºÎºÐÀε¥, m920Àº m903º¸´Ù ´õ¿í ±â´ÉÀÌ ´Ã¾î³µ±â¿¡ ±×·¯ÇÑ ³ë·ÂÀÇ Çʿ伺ÀÌ ´õ¿í Ä¿Á³´Ù. Á¦Ç° ±¸ÀÔ ½Ã ±âº»À¸·Î Á¦°øÇÏ´Â ¸Þ´º Äü °¡À̵带 ¹Ýµå½Ã ¼÷ÁöÇؾ߸¸ m920ÀÇ ÃÖ´ëÇÑÀÇ ¼º´ÉÀ» ¹ßÈÖÇÒ ¼ö ÀÖ´Ù. ƯÈ÷, USB ÀÔ·ÂÀÇ °æ¿ì ±âº»ÀûÀ¸·Î 24bit/96kHz±îÁö¸¸ Áö¿øÇÏ´Â USB Audio Class 1·Î ¼³Á¤µÇ¾î ÀÖÀ¸¹Ç·Î, À̸¦ ¼³Á¤¿¡¼ USB Audio Class 2·Î º¯°æÇØ ÁØ ÈÄ PC¿¡ Àü¿ë µå¶óÀ̹ö¸¦ ¼³Ä¡ÇÑ ÈÄ¿¡¾ß m920ÀÇ USB ÀÔ·Â ¼º´ÉÀÌ ÃÖ´ëÇÑÀ¸·Î ¹ßÈֵȴÙ.
ºÎµå·¯¿öÁø ÃÊ°íÀ½ Ư¼º¿¡ ´õÇØ, ÃÖ¼ÒÀ§»ó(Minimum Phase) ÇÊÅ͸¦ ¼±ÅÃÇÏ¸é ¿Àµð¿À ½ÅÈ£¿¡¼ û°¨»ó ÁÁÁö ¾ÊÀº ¿µÇâÀ» ¹ÌÄ¡´Â Àü¿ï¸²(Pre-Ringing)ÀÌ Á¦°ÅµÇ¾î û°¨»ó ÇÑÃþ ´õ ÀÚ¿¬½º·¯¿î ¼Ò¸®¸¦ µé·ÁÁØ´Ù. »Ó¸¸ ¾Æ´Ï¶ó m903¿¡µµ žÀçµÇ¾î ÀÖ´Â Å©·Î½ºÇǵå(x-feed) ±â´É ¿ª½Ã µ¿ÀÏÇÏ°Ô Å¾ÀçÇÏ¿©, ÇìµåÆù ûÃë ½Ã¿¡ Á¿ì Å©·Î½ºÅäÅ©°¡ ¾ø¾î °ø°£°¨ÀÌ ¾î»öÇÏ°Ô ´À²¸Áö´Â ¹®Á¦¸¦ º¸¿ÏÇÔÀ¸·Î½á û°¨»ó ÀÚ¿¬½º·¯¿î ´À³¦À» ¸¸µé¾îÁØ´Ù. Àü¹®°¡¿ë ¿Àµð¿À ÀÎÅÍÆäÀ̽ºÀ̸鼵µ À½¾Ç °¨»ó¿¡ Æ¯ÈµÈ Ã»°¨ Ư¼ºÀ» º¸¿©ÁÖ´Â Èï¹Ì·Î¿î Á¦Ç° ¼º°ÝÀÌ ÀÌÀüº¸´Ùµµ ÇÑÃþ °ÈµÇ¾ú´Ù°í ÇÒ ¼ö ÀÖ´Ù.
m920Àº m903ÀÇ ±âº» ¼³°è¸¦ ´ëºÎºÐ À¯ÁöÇÏ°í Àֱ⿡ ±âº»ÀûÀÎ À½Áú Ư¼ºÀº À¯»çÇÏ°Ô ³ªÅ¸³´Ù. ÀÌ´Â ¾ð¹ë·±½º ¹× ÇìµåÆù Ãâ·ÂÀÇ ³ëÀÌÁî ÆÐÅÏ¿¡¼ ±×´ë·Î µå·¯³ª´Âµ¥, û°¨»ó ü°¨ÇÒ ¼ö ÀÖ´Â ºÎºÐÀº ¾Æ´ÏÁö¸¸ °èÃø »óÀ¸·Î´Â 60Hz AC Àü¿ø ³ëÀÌÁî ¹× ±×¿¡ µû¸¥ Çϸð´Ð½º ¼ººÐÀÇ ÆÐÅÏÀÌ °ÅÀÇ µ¿ÀÏÇÏ°Ô ³ªÅ¸³´Ù. ¹°·Ð ¾÷±×·¹À̵åµÈ ¸ðµ¨´ä°Ô, ¾ð¹ë·±½º ¹× ÇìµåÆù Ãâ·ÂÀÇ ³ëÀÌÁî Ç÷ξî ÀÚü´Â 6dB ÀÌ»ó ³·¾ÆÁ³´Ù. ½ÇÃø °á°ú ¹ë·±½º Ãâ·Â¿¡¼ -117dB, ¾ð¹ë·±½º Ãâ·Â¿¡¼ -113dB, ÇìµåÆù Ãâ·Â¿¡¼ -112dB ¼öÁØÀÇ ³ëÀÌÁî Ç÷ξ º¸¿©ÁÖ¾î, Àü¹®°¡¿ë Çϵå¿þ¾î·Î½á À½ÁúÀÌ ÇÑÃþ Çâ»óµÇ¾ú´Ù. û°¨»ó ÈÀÌÆ® ³ëÀÌÁî´Â ´ç¿¬È÷ ÀüÇô µéÀ» ¼ö ¾ø¾ú°í, À½¾Ç °¨»ó¿¡ À־µ ³ôÀº Á¤¼÷¼ºÀ» ¹ÙÅÁÀ¸·Î ¼ÒÆí¼ºÀÇ °í¿äÇÔ°ú ´ëÆí¼ºÀÇ À½·®°¨À» °¡¸®Áö ¾Ê°í ¾î´À À½¾ÇÀ̳ª ºÐÀ§±â¸¦ ±Ø´ëÈ ½ÃÄÑÁØ´Ù.
¿ÖÀ² Ư¼ºÀÇ °æ¿ì¿¡´Â ¿ø·¡ m903µµ Àüü °íÁ¶ÆÄ ¿ÖÀ²(THD) Ư¼ºÀÌ ½ÇÃø»ó 0.0004%¿¡ ºÒ°úÇÒ Á¤µµ·Î ¿ì¼öÇߴµ¥, m920Àº 0.0002%±îÁö ³·¾ÆÁ³´Ù. ¿ÖÀ² Ư¼ºÀº 1% ÀÌÇÏÀ̱⸸ Çϸé û°¨»ó Â÷À̸¦ ü°¨ÇϱⰡ »ç½Ç»ó ºÒ°¡´ÉÇÏÁö¸¸, ±×°Í°ú´Â º°°³·Î ÀÌ·¯ÇÑ Àú¿ÖÀ² Ư¼ºÀº Àü¹®°¡¿ë ¿Àµð¿À ÀÎÅÍÆäÀ̽º·Î½á ÃÖ»óÀÇ À½ÁúÀ» Á¦°øÇÑ´Ù´Â Ãø¸é¿¡¼´Â ÃæºÐÈ÷ Àǹ̰¡ ÀÖ´Â °³¼±ÀÌ´Ù. ¶ÇÇÑ ÀÌ´Â Çϵå¿þ¾î¿¡ ÀÇÇÑ Âø»öÀÇ °³ÀÔÀ» ÃÖ¼ÒÈÇϱ⸦ ¿øÇÏ´Â ÇÏÀÌÆÄÀÌ ¾ÖÈ£°¡µéÀÌ Àü¹®°¡¿ë Á¦Ç°À» »ç¿ëÇÏ´Â ÀÌÀ¯À̱⵵ ÇÏ´Ù.
º» ¸®ºä¿¡¼´Â m903 ¸®ºä¿ÍÀÇ Áߺ¹µÇ´Â ³»¿ëÀ» µÇµµ·Ï ¹èÁ¦ÇÏ°í m920¿¡¼ °³¼±µÈ Á¡ À§ÁÖ·Î ´Ù·ç¾ú´Âµ¥, m920Àº ¿©ÀüÈ÷ ´Ù¾çÇÑ ÀÔÃâ·ÂÀ» °®Ãá ÀüõÈÄ ¸ð´ÏÅÍ ÄÁÆ®·Ñ·¯ÀÓÀ» Àؾ °ï¶õÇÒ °ÍÀÌ´Ù. ¿ì¼± ÇìµåÆù Ãâ·Â ¹× ¹ë·±½º/¾ð¹ë·±½º ¶óÀÎÃâ·ÂÀÇ À½·®À» °¢°¢ º°µµ·Î Á¶ÀýÇÒ ¼ö ÀÖÀ¸¸ç, 0ºÎÅÍ 99.5dB±îÁö 0.5dB½ºÅÜÀ¸·Î °íÁ¤¹Ð ¾Æ³¯·Î±× º¼·ýÀ» µðÁöÅÐ ¹æ½ÄÀ¸·Î ¸Å¿ì ¼¼¹ÐÇÏ°Ô Á¶Á¤ÇÒ ¼ö ÀÖ´Ù. ¶ÇÇÑ °¢ Ãâ·Â´Ü º°·Î Ãâ·Â ¿ÀÇÁ¼Â ¼³Á¤À» -9.5~9.5dB ¹üÀ§ ³»¿¡¼ 0.5dB ´ÜÀ§·Î Á¶Á¤ÀÌ °¡´ÉÇÏ¿©, ½Ã½ºÅÛ ¿¬°á ȯ°æ¿¡ µû¶ó ÇÊ¿äÇÑ °ÔÀÎÀ» ¶óÀκ°·Î ¼³Á¤ÇØ ÁÙ ¼ö ÀÖ´Ù. »ó´ç¼öÀÇ ´ÙÁß Ãâ·Â°èÅëÀ» °¡Áö°í ÀÖ´Â DACµéÀÌ ÇϳªÀÇ º¼·ý¸¸À¸·Î Àüü Ãâ·Â º¼·ýÀ» °ü¸®ÇÔ¿¡ µû¶ó ¸Å¹ø º¼·ýÀ» »õ·Î ¸ÂÃçÁà¾ß ÇÏ´Â °æ¿ì°¡ Á¾Á¾ Àִµ¥, m920ÀÇ Ãâ·Â °èÅ뺰 º¼·ý&¿ÀÇÁ¼Â ÄÁÆ®·Ñ ±â´ÉÀº º¹ÀâÇÏ°Ô ¿¬°áµÇ¾î ÀÖ´Â ½Ã½ºÅÛÀϼö·Ï ÅëÇÕ °ü¸®ÀÇ »ç¿ë¼ºÀ» ³ô¿©ÁÖ´Â À¯¿ëÇÑ ±â´ÉÀÌ´Ù.
±×·¹À̽º µðÀÚÀÎÀÌ m903À» ÅëÇØ º¸¿©ÁÖ¾ú´ø, Àü¹®°¡¿ë Á¦Ç°ÀÌ¸é¼ ÇÏÀÌÆÄÀÌ ¾ÖÈ£°¡µéµµ ¸¸Á·ÇÒ ¸¸ÇÑ µ¶Æ¯ÇÑ °³¼ºÀ» m920Àº º¸´Ù °È½ÃÄ×´Ù. Àü¹®°¡¿ë ¿Àµð¿À ÀÎÅÍÆäÀ̽º·Î½áÀÇ ¼º´É Çâ»ó°ú µ¿½Ã¿¡ À½¾Ç °¨»ó¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â û°¨ Ư¼ºÀÇ ½ÇÁúÀû °³¼±Àº m920ÀÌ ´Ü¼øÈ÷ ½ºÆ常 ¾÷±×·¹À̵åµÈ ±â±â°¡ ¾Æ´ÔÀ» ¾Ë ¼ö ÀÖ´Ù. ±âÁ¸ÀÇ m903 À¯Àú¶ó°í ÇÒÁö¶óµµ ¾÷±×·¹À̵带 ÁøÁöÇÏ°Ô °í¹ÎÇØ ºÁ¾ß ÇÒ Á¤µµ·Î, m920ÀÇ º¯È´Â °ý¸ñÇÒ ¸¸ÇÑ ¼º°úÀÌ´Ù.
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DSD ¹× PCM 32bit/384kHz °íÇØ»óµµ À½¿ø Áö¿ø Ãß°¡
PCM ¹× DSD¿¡ ´ëÇÑ ·Î¿ìÆнº ÇÊÅÍ ¼±Åà ±â´É Ãß°¡
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Àü¿ë ¸®¸ðÆ® ¹× ¾ÖÇà ºí·çÅõ½º ¸®¸ðÆ® Áö¿ø
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Specification | |
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ANALOG IN | |
Gain - Balanced Input | Headphone output, volume at maximum : 0dB Balanced Line output, volume at maximum : -0.5dB Unbalanced Line output, volume at maximum : -8.0dB |
Frequency Response | 0dBu out +/- .25dB 15Hz - 50kHz @ 0dBu out +/- .5dB 9.5Hz - 72kHz |
Maximum Input Level | Balanced Input +22dBu Unbalanced Input +16dBu |
Maximum Output Level | Unbalanced output @1kHz, 100k Ohm load : +22dBu Balanced output @1kHz, 100k Ohm load : +23dBu Headphone output @1kHz, 50 Ohm load : +20dBu |
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, Balanced In > Balanced Out : 116dB @ 0dB gain, Balanced In > Headphone Out : 117dB |
Frequency Response - Unbalanced In > Unbalanced Out | 4Hz - 192kHz |
THD+N Balanced Input | |
Gain | Headphone Out @ +10dBu, 50 Ohm load : <0.0050% Unbalanced Line Out @ +10dBu, 100k Ohm load : <0.00045% Balanced Line Out @ +20dBu, 100k Ohm load : <0.00075 |
Attenuator | Channel matching : <0.05dB Attenuator Range : 97.5dB Output Noise Floor, Balanced Input Balanced Output, volume at maximum, 22-22kHz : -93dBu Balanced Output, volume at minimum, 22-22kHz : -99dBu Unbalanced Output, volume at maximum, 22-22kHz : -103dBu Unbalanced Output, volume at maximum, 22-22kHz : -105dBu |
Frequency Response - Unbalanced In > Unbalanced Out | 4Hz - 192kHz |
D/A CONVERTER | |
Input Formats: AES, S/PDIF, TOSLINK | PCM (kHz): 44.1, 48, 88.2, 96, 176.4, 192, DSD64 |
Input Formats: USB | PCM (kHz): 44.1, 48, 88.2, 96, 176.4, 192, 352.4, 384 |
Input Sample Rate | 32, 44.1, 48, 88.2, 96, 176.4, 192kHz |
THD+N | 44.1kHz, 24bit, 1kHz, -1dBFS, Unbalanced Out @ +15dBu : <0.0005% 44.1kHz, 24bit, 1kHz, -1dBFS, Balanced Out @ +15dBu : <0.0005% |
Output level | Unbalanced Output @ 0dBFS, Volume at maximum, trim at 0 : +9dBu Balanced Output @ 0dBFS, Volume at maximum, trim at 0 : +17.6dBu Unbalanced Output @ 0dBFS, Fixed DAC Output Mode : +8.2dBu |
M920 | |
¼öÀÔ»ç | ´Ù´ãÀÎÅͳ»¼Å³Î |
¼öÀÔ»ç ¿¬¶ôó | 02-705-0708 |
¼öÀÔ»ç ȨÆäÀÌÁö | www.dadamint.co.kr |