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:::ÇöÀçÀ§Ä¡ HOME ¢º Áø°ø°ü ¾ÚÇÁ ¢º ÄÚÇ÷£µå CTA 305 + CTA 506 + CDA 825
    
 
 
ÄÚÇ÷£µå CTA 305 + CTA 506 + CDA 825
ÆÇ¸Å°¡°Ý :  
ÁÖ¹®¼ö·® :
Á¦Á¶»ç : COPLAND
ÇÕ°è±Ý¾× :  
   
 



¸ð´øÇÑ Slim line designÀÇ High Preformance Áø°ø°ü ÇÁ¸®¾ÚÇÁ (12AX7/ECC83 x 4)
Phono Input (47k§Ù) ±âº»±¸¼º
Dual Class-A Line circuit
µÎ °³ÀÇ ¾ð¹ë·±½º RCA Ãâ·Â´ÜÀÚ¿Í RIAA Æ÷³ë ÀԷ´ÜÀÚ¸¦ Æ÷ÇÔÇÏ´Â 6°³ÀÇ ÀԷ´ÜÀÚ ±¸ºñ


* »ç¿ë Áø°ø°ü
12AX7 4°³
* THD
0.1% ÀÌÇÏ (Æ÷³ë) / 0.02% ÀÌÇÏ (CD, ¶óÀÎ)
* ÀÔ·Â °¨µµ
1.4V
* ÀÔ·Â ÀÓÇÇ´ø½º
50k§Ù
* S/Nºñ
103dB
* ¼ÒºñÀü·Â
600W
* Å©±â (WHD) 43 X 8.6 X 39cm
* ¹«°Ô 18kg

CTA506
The CTA506 power plant is based on the KT120 power valves. These valves are a new variant of the legendary 6550 / KT88 power valves. For more than half a century, these classic valves have been the foundation of numerous of high quality amplifiers and surely, they will continue to serve as one of the premium choices among manufactures of high-power valve amplifiers.
However, nowadays KT120 is the most powerful dedicated audio tube in production. In comparison with the KT88, nearly 30% more power can be drawn from these impressive valves. With a plate dissipation rating of 60W, a pair of KT120 tubes in push-pull configuration can deliver nearly 200W of audio power. When used in circuit designs of more modest power outputs, the KT120 can deliver incredible quantity of headroom and dynamic without overloading.
When output powers of more than 50W are going to be provided from a power amplifier, the input and driver circuits of the amplifier are confronted with a dramatic increase of current needed to supply the power devices of the amplifier. This is a reality regardless if the amplifier is based on bipolar transistors, Fets, or vacuum tubes technology, and no matter if single high power output devices are used for the design or if the amplifier employs multiple low power devices in a parallel configuration.
Even though Fets-semiconductors and audio valves in theory are voltage controlled devices, these also require relatively low impedance driver circuitry with current capability, partly due to the increase of input capacities and partly due to the often neglected fact that also audio valves are drawing current through their input terminals.
CTA506 2
To prevent excessive loading of the amplifying stages of the amplifier, CTA506 employs efficient buffer circuitries as a method of partitioning the load from the amplifying valves. The buffers are current amplifiers with very low distortion and they do not amplify the signal, they only make it stronger. Another benefit from the use of buffer circuitries is that they allow low impedance DC-coupling between the driver and power valves of the CTA506.
The CTA506 push pull output stages consists of a pair of marched KT120 in fixed ultra-linear configuration, giving the low distortion of triodes combined with the power of tetrode valves. A dedicated power supply for the input stages of the amplifier allows the massive central reservoir capacitors of more than 3000-microfarad to independently serve the output valves.
In order to isolate power supply fluctuations of the power stage from entering the input and driver stages of the amplifier, the CTA506 employs active valve regulation by the use of two pieces type 6550 power valves, one of the valves dedicated to the driver stages only and the other regulating the amplifying stages with only a fraction of deviation from the voltage chosen to operate the valves in this application.
The huge termionic power valves used in this construction are very attractive to look at; we have therefore decided to make them clearly visible by situating the valves behind lateral perforations on the front panel, thus creating what we consider to be a stunning design to mach the sonic virtues of this amplifier.


CDA825 CD-PLAYER


COPLANDÀÇ ½ÅÀÛ CDA825´Â CD ¹Ìµð¾îÀÇ À½¾Ç ±â´É Çâ»ó Ãß±¸¿¡ ´ëÇÑ °á°úÀÔ´Ï´Ù.

±â¼ú¿¡ ´ëÇÑ ¿ä°ÇÀ» ÀÌÇØÇÔÀ¸·Î½á, ²÷ÀÓ¾ø´Â ³ë·ÂÀ» ±â¿ï¿©¿Â ÀÌ Ç÷¹À̾î´Â CD »ç¿îµå Àç»ý¿¡ Å« ¹ßÀüÀ» °¡Á®´Ù ÁÙ °ÍÀÔ´Ï´Ù.


ÀÌ CD Ç÷¹À̾î´Â Ãʱ⠾Ƴ¯·Î±× »ç¿îµåÀÇ µðÁöÅÐ Àç»ýÀº ¹°·ÐÀ̸ç, ¾Æ³¯·Î±× ÆÄÇü º»¿¬ÀÇ º¹ÀâÇÏ°í ¼¶¼¼ÇÑ Çϸð´Ï ÀçÇöÀ» À§ÇØ ¼³°èµÇ¾úÀ¸¸ç, °¢°¢ÀÇ ¼¼ºÎÀûÀÎ ºÎºÐ»Ó¸¸ ¾Æ´Ï¶ó Àüü ÅëÇÕÀ» Ãæ½ÇÇÏ°Ô ±¸ÇöÇÕ´Ï´Ù.


Power supplies / Àü¿øºÎ

CDA825ÀÇ Àü¿øºÎÀÇ ¶ó¿ìÆÃ ¹× Á¢Áö¹æ½ÄÀº µðÁöÅаú ¾Æ³¯·Î±×ºÎǰ »çÀÌÀÇ Àý¿¬¿¡ È¿°úÀûÀÔ´Ï´Ù.

¶ÇÇÑ, Àü¿ø ȸ·ÎÀÇ Àü·Â¼Ò¸ð ¹æÁö¸¦ À§ÇØ ³·Àº Ãâ·ÂÀÇ ÀÓÇÇ´ø½º¸¦ À¯Áö ÇÒ ¼ö ÀÖµµ·Ï ¼³°èµÇ¾ú½À´Ï´Ù. CDA825ÀÇ °³º° Àü¿ø °ø±Þ ÀåÄ¡´Â ÀÏÁ¤ÇÑ Àü·ÂÀ¸·Î ÀÛµ¿Çϵµ·Ï ÇÔÀ¸·Î½á Æ®·£½ºÆ÷¸Ó ¹× AC Àü¿ø °ø±Þ ÀåÄ¡°¡ ¿øÈ°ÇÏ°Ô ÀÛµ¿µÇµµ·Ï ¼³°èµÇ¾ú½À´Ï´Ù.



Error correcting capability /¿À·ù ¼öÁ¤ ±â´É

¼­¹ö / ¿À·ù ¼öÁ¤ ȸ·Î´Â µð½ºÅ©ÀÇ µ¥ÀÌÅÍ¿¡¼­ ¿¡·¯°¡ ¾ø´Â ÃÖ»óÀÇ ¼Ò½º ÃßÃâÀ» º¸ÀåÇÕ´Ï´Ù.

ÀÌ È¸·ÎµéÀº ¼±º°µÈ ¹ÝµµÃ¼ Á¦Á¶ ¾÷ü¿¡ ÀÇÇØ ¼³°èµÇ¾ú½À´Ï´Ù.

¶ÇÇÑ, ÃÖ°íÀÇ chip-set ¼±º°À» À§ÇØ ´Ù¾çÇÑ Å×½ºÆ®¸¦ °ÅÃÆÀ¸¸ç, ÀÌ·¯ÇÑ ÀåÄ¡¿¡ ´ëÇÑ ÃÖÀûÈ­µÈ ÀÛ¾÷ Á¶°ÇÀ» Á¦°ø ÇÕ´Ï´Ù.

¿ø·¡ÀÇ red-book CD´Â 8 -14 ¸ðµâ·¹À̼Ç, ÀÎÅ͸®ºù°ú ¸®µå, ¼Ö·Î¸ó ¿¡·¯ ¼öÁ¤ÀÔ´Ï´Ù.

ÀÌ ¶§¹®¿¡ Ãâ·Â(decode) °¡´ÉÇÑ ¸ðµç chip-set ÀÇ ¿Ïº®ÇÑ ¼öÁ¤ ±â´ÉÀÌ ÀåÂøµÇ¾îÀÖ½À´Ï´Ù

CDA825¿¡ »ç¿ëµÈ Çʸ³½º chip-setÀº red-book CDÀÇ ¸ðµç ¿À·ù ¼öÁ¤À» À§ÇÑ ¿Ïº®ÇÑ ½Ã½ºÅÛ¿î¿ëÀ» Á¦°øÇÔÀ¸·Î½á, CD-Pro2LF ¸ÞÄ¿´ÏÁò ¿¡¼­ ÃßÃâµÈ µ¥ÀÌÅÍÀÇ Á¤È®ÇÑ ÀçÇöÀ» º¸ÀåÇÕ´Ï´Ù.



Buffer circuitry / ¹öÆÛ ȸ·Î

Àý¿¬À» À§ÇÑ µ¥ÀÌÅÍ ÃßÃâ ÆÄÆ®¿Í (µå¶óÀ̺ê, ¼­¹ö, ¿À·ù ¼öÁ¤) , Àç»ý ÆÄÆ® (DAC, ¾Æ³¯·Î±× ¹× Ãâ·Â ÇÊÅ͸µ) :

µðÁöÅÐ ¹öÆÛ°¡ Æ÷ÇÔµÈ À½¾Ç µ¥ÀÌÅÍ´Â DAC µå¶óÀ̺êÀÇ Àý¿¬À» À§ÇØ µå¶óÀÌºê ½Ã½ºÅÛÀ» »ç¿ëÇÑ DAC»çÀÌÀÇ ½ÅÈ£°æ·Î »çÀÌ¿¡ Æ÷ÇԵǾî ÀÖ½À´Ï´Ù.

µå¶óÀ̺꿡¼­ ÃßÃâµÈ µ¥ÀÌÅÍ´Â µå¶óÀ̺ê¿Í ºÐ¸® µÈ À§Ä¡¿¡ Àֱ⠶§¹®¿¡, ¹Ì¼¼ÇÑ ÁöÅͰ¡ ÀÖ½À´Ï´Ù.

¹öÆÛÀÇ ÀÔ·Â ÆÄÆ®¿¡¼­ ÀÌ·± ¾à°£ÀÇ ½Ã°£ Â÷¸¦ Èí¼öÇÔÀ¸·Î½á, ¹öÆÛ ¸Þ¸ð¸®°¡ µ¥ÀÌÅÍ·Î »ç¿ëµË´Ï´Ù.

ÃßÃâµÈ µ¥ÀÌÅÍÀÇ DAC´Â ¿Ïº®ÇÏ°Ô ÀÏÁ¤ÇÑ ¼Óµµ·Î ÀÛ¾÷Çϱ⠶§¹®¿¡ µ¥ÀÌÅÍÀÇ ÁöÅ͸¦ Á¦°ÅÇÏ°Ô µË´Ï´Ù.


DAC´Â ±â¾ïÀåÄ¡ÀÇ ·¹Áö½ºÅͷκÎÅÍ ¹ß»ýÇÏ´Â µðÁöÅе¥ÀÌÅ͸¦ °ø±Þ¹Þ½À´Ï´Ù. ÀÌ¿Í °°Àº ¸ðµâ·¹À̼ǰú Àü±â¿¡³ÊÁö(µå¶óÀÌºê º¯È­ÀÇ Àü·Â¼Ò¸ð)¸¦ ¿ÏÀüÈ÷ ¾ø¾Ý½À´Ï´Ù. DAC´Â ºÐ¸®µÇ´Â ºÎºÐÀÌ ±¸¼ºµÇÁö ¾Ê´Â ȯ°æÀ¸·ÎºÎÅÍ µ¥ÀÌÅ͸¦ °ø±Þ¹Þ½À´Ï´Ù.


Digital filter / µðÁöÅÐÇÊÅÍ

À½Çâ½É¸®Çп¡¼­ Àß ¾Ë·ÁÁø ¹Ù¿Í °°ÀÌ Á֯ļö ¿µ¿ª»Ó¸¸ ¾Æ´Ï¶ó ¸¶½ºÅ·È¿°ú(masking effect) ¸¦ ÀÚ°¢ÇÒ ¶§ Àΰ£ÀÇ Ã»°¢Àº ºÎ°¢µË´Ï´Ù. ½Ã°£¿µ¿ªÀÇ ¸¶½ºÅ·È¿°ú´Â (ÀϽÃÀûÀÎ ¸¶½ºÅ·) ÀÚ±Ø Àü º¸´Ù ¼ÒÀ½ Á÷ÈÄ¿¡ û°¢¿¡ ´ú ¹Î°¨ÇÑ °ÍÀ¸·Î ¼³¸íµÉ ¼ö ÀÖ½À´Ï´Ù. ÀÌ´Â CDA825ÀÇ µðÁöÅÐ ¾÷ »ùÇøµÀÇ ÇÊÅÍ ¼³°è¿¡ ÀÌ¿ë µÇ¾î ¿Ô½À´Ï´Ù. 20KHz·Î Á¦ÇѵǴ CDÀç»ýÀÇ ´ë¿ªÆø ¶§¹®¿¡, low pass filters°¡ ÀÌ Á֯ļö ´ë¿ª±îÁö Åë°úÇÏ´Â CD µ¥ÀÌÅ͸¦ ¾÷ »ùÇÃ ÇØ¿Ô½À´Ï´Ù.


±âÁ¸ÀÇ ÀϹÝÀûÀÎ ¼±Çü ´Ü°èÀÇ ¾÷ »ùÇøµ ÇÊÅÍ´Â 20KHZ ÀÌ»óÀÇ ¿ï¸²À¸·Î ½Ã°£´ëĪÀÇ ÀÚ±Ø ÀÀ´äÀ» ÇÕ´Ï´Ù.

CDA825ÀÇ ¾÷ »ùÇøµ ÇÊÅÍ´Â ÀÌÀüÀÇ ¡°ringing¡±°ú ³ëÀÌÁîÀÇ Àڱؿ¡ ¾Õ¼­ Àΰ£ û°¢ÀÇ ÀϽÃÀûÀÎ ¸¶½ºÅ·À» °í·ÁÇÏ¿© ÀÚ±ØÀ» ÁÙÀÎ ¹æ½ÄÀ¸·Î ¼³°èµÇ¾ú½À´Ï´Ù.

ÀÌ·¯ÇÑ ÇÊÅÍ ¼³°è´Â CDA825 »ç¿îµåÀÇ ¾ÈÁ¤ÀûÀÎ °í¿äÇÔÀ» ±¸ÇöÇØ³À´Ï´Ù. Á¶¿ëÇÑ È¯°æ¿¡¼­ ºñ·ÔµÇ´Â transients¿Í transients´Â ¸íÈ®ÇÏ°í ¸Å¿ì ±ú²ýÇÏ°Ô Àνĵ˴ϴÙ.

ÀÌ·± Á¾·ùÀÇ ÇÊÅ͵éÀÌ ÃÖ±Ù apodizing filter·Î ¾Ë·ÁÁö°í ÀÖ½À´Ï´Ù.


Clock circuit / Ŭ¶ô ȸ·Î

Ŭ¶ô ¼­Å¶Àº µ¥ÀÌÅ͸¦ Áï°¢ÀûÀ¸·Î ¾Æ³¯·Î±× Àü¾ÐÀ¸·Î ÀüÈ¯ÇØÁÝ´Ï´Ù. À¯»ç Ŭ¶ô ´Ü°è¿¡ ÀÖ´Â (¸ðµâ·¹ÀÌ¼Ç ´Ü°è: ÁöÅÍ·Î ÀÎÇÑ Çö»ó) µ¥ÀÌÅÍ´Â ¾Æ³¯·Î±× Àü¾ÐÀ¸·Î ÀüȯµÇÁö ¾Ê½À´Ï´Ù.

ÀÌ·± ŸÀÌ¹Ö ¿À·ù´Â ÁøÆø¿À·ùÀÇ µµÀÔ°ú ÀÏÄ¡ÇÕ´Ï´Ù. - ¾Æ³¯·Î±× Àü¾ÐÀº ¾Æ³¯·Î±× ÆÄÇüÀÇ ÀçâÁ¶ ¿ÏÀüÇÑ ÇÏÀÌ ½Ã±×³Î°ú ³ôÀº Á¤È®µµ, Ŭ¶ô ¼­Å¶ÀÇ ÁöÅÍ ¼º´É»Ó¸¸ ¾Æ´Ï¶ó Ŭ¶ôÀÇ ¹èÀü ¼±·Î ¿ª½Ã ¸Å¿ì Áß¿äÇÕ´Ï´Ù. CDA 825ÀÇ Å¬¶ô ¹ßÀü±â´Â ÀÚü Àü¿ø°ø±Þ ÅëÁ¦ ÀåÄ¡°¡ ³»ÀåµÇ¾î ÀÖÀ¸¸ç, ÃÖ°íÀÇ ÁöÅÍ ¼º´ÉÀ» À§ÇØ ¼¼½ÉÇÏ°Ô ¼³°è µÇ¾ú½À´Ï´Ù.


Digital to analog converters / DAC

CDA 825´Â WolfsonÀÇ WM8741 24bit, 192 KHz DAC·Î µÎ °³ÀÇ ÀåÄ¡°¡ °¢°¢ÀÇ Ã¤³Î¿¡ »ç¿ëµË´Ï´Ù.

°¢ DAC´Â 2 °³ÀÇ µðÁöÅÐ ¾Æ³¯·Î±× ÄÁ¹öÅÍ, °¢°¢ÀÇ ´Ü°è¿¡¼­ ½ÅÈ£¸¦ Á¦°øÇÏ°í ¹Ý´ë·Î ´Ü°è ½ÅÈ£·Î ±¸¼ºµÇ¾îÀÖ½À´Ï´Ù. °áÇÕÇÏ¿© ÀÛµ¿ÇÏ´Â 2°³ÀÇ Ã¤³Î°ú ¹Ý´ë·Î ÀÛµ¿Çϴ ä³Î ½ÅÈ£ÀÇ Åë°èÀû ¼Ó¼ºÀ» ÀÌ¿ëÇÏ¿© À̵¿µË´Ï´Ù;

´Ü°èÀûÀ¸·Î ¿¬°áµÈ ½ÅÈ£Àü·ÂÀÌ ÀÖ´Â ¹Ý¸é, ¿¬°ü¼º ¾ø´Â ³ëÀÌÁî ÆÄ¿ö´Â ¾Æ³¯·Î±× ÆÄÇüÀÇ ³ëÀÌÁî ºñÀ²À» Áõ°¡½Ãŵ´Ï´Ù.


Analog circuitry and post filtering

³ôÀº ¼öÁØÀÇ ¿À¹ö»ùÇøµÀº, DACÄÁ¹öÅÍÀÇ Ãâ·Â¿¡¼­ ºÎÀûÇÕÇÑ ³ëÀÌÁî (aliasing energy)¸¦ ÃÖ¼ÒÈ­ÇÕ´Ï´Ù.

ÀÌ´Â ³ôÀº ´ë¿ªÆøÀÇ ¾Æ³¯·Î±× Ãâ·Â½ºÅ×ÀÌÁö¿Í ´õ ³·Àº ¾Æ³¯·Î±× ÇÊÅ͸µÀ» °¨¾ÈÇÏ¿© ¼³°è µÇ¾ú½À´Ï´Ù.


Sound quality / »ç¿îµå Ä÷¸®Æ¼

Copland »ç¿îµå öÇÐÀÇ Æ¯Â¡ÀÎ ½É¿ÀÇϰí, ¾ö°ÝÇÑ, À¯¿¬ÇÑ º£À̽º Àç»ýÀº ¹°·Ð, ¹ÂÁöÄà ¿¡³ÊÁöÀÇ ±ÕÀÏÇÑ È帧, ³ìÀ½ ´ç½ÃÀÇ »ç¿îµå¸¦ ÈǸ¢È÷ ÀçÇöÇÏ´Â °ÍÀº CDA825¸¸ÀÇ °íÀ¯ÇÑ ÀåÁ¡ÀÔ´Ï´Ù.

CDA825´Â ´ÙÀ̳ª¹ÍÇÑ ÇØ»óµµ·Î À½¾Ç ¿¡³ÊÁö¿Í º¹ÀâÇÑ ¸ðµâ·¹ÀÌ¼Ç ÁøÆø, À̵¿¼ºÀº ¹°·Ð, °¡¼Ó¿¡µµ ¾î¶°ÇÑ Á¦¾àµµ ¹ÞÁö ¾Ê½À´Ï´Ù.

¼Ò±Ô¸ðÀÇ ¾îÄí½ºÆ½ 3ÁßÁÖ »Ó¸¸ ¾Æ´Ï¶ó ´ëÇü ¿ÀÄɽºÆ®¶ó »ç¿îµå ¿ª½Ã ±× ±Ô¸ð¿Í º¹ÀâÇÑ Çϸð´Ï¸¦ ¿ì¼öÇÑ ÇØ»óµµ·Î Ãæ½ÇÇÏ°Ô ¿øÀ½ ±×´ë·Î Àç»ýÇÕ´Ï´Ù. °¢°¢ÀÇ ¾Ç±âµéÀº À½¾Ç È帧¿¡ ±¸¼Ó ¹ÞÁö ¾Ê°í ÈǸ¢ÇÑ »ç¿îµå·Î ÀÚÀ¯·Ó°Ô Àç»ýµË´Ï´Ù.

ÀÌ·¯ÇÑ CDA825ÀÇ ¿ì¼ö¼ºÀº ¶§·Î´Â ´Ù¸¥ ±â±âµéÀÇ ¸ð¹æÀÇ ´ë»óÀÌ µÇ¾î µµÀüÀ» ¹ÞÀ» ¼öµµ ÀÖÀ» °ÍÀÔ´Ï´Ù.

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