由 drunkenlife » 2014-12-18, 12:10
由 drunkenlife » 2014-12-19, 22:41
由 vicnest » 2014-12-20, 00:23
由 drunkenlife » 2014-12-20, 20:56
vicnest 寫:就去換了470uF、220uF、100uF等備料，特別選了看起來比較小比較好塞的BC 136低阻抗系列，036與116忘了是幹啥用的，
vicnest 寫:這些pro audio 公司實在該出個多加1~2萬新台幣不要這麼cost down的機型，應該反而會大賣吧?!
由 vicnest » 2014-12-21, 14:06
由 vicnest » 2014-12-21, 14:21
High performance 32-Bit DAC
AK4480 is a 32-bit DAC which corresponds to DVD-Audio systems. An internal circuit includes newly developed 32bit Digital Filter for better sound quality achieving low distortion characteristics and wide dynamic range. The AK4480 has full differential SCF outputs, removing the need for AC coupling capacitors and increasing performance for systems with excessive clock jitter. The AK4480 accepts 216kHz PCM data and 1-bit DSD data, ideal for a wide range of applications including DVD-Audio and SACD.
Positioned strategically to attract attention from buyers looking at mid to high-end boxes like the RME UFX and Lynx Aurora it has managed to earn quite a reputation. For most, the Apollo delivers not only on the quality of its conversion and preamps, but in its ability to run UAD2 plugins in the DAW and in real time. It’s such a fun and exciting box, in fact, it has even garnered much attention from the high-end pro arena. As good as the conversion quality is, it doesn’t sit next to boxes like the Apogee Symphony and Prism Orpheus that take digital conversion to the next level.
由 drunkenlife » 2014-12-21, 20:49
vicnest 寫:網路上只有BLA對UA Apollo的改機照片，改機以前，中央後方的output是對照組
原廠的電容看不出來用的是啥，照片太遠。
圖片來源有文章與更多圖片
http://www.harmonycentral.com/forum/forum/Forums_General/pro-reviews/30964997-universal-audio-apollo-audio-i-30964997
BLA改了DAC部分的照片，電解電容都換掉了，output電容也換掉 (照片比較大可以近看) (這張圖的上方才是output)
這有另一張超過1MB的圖，看起來覺得好像比較好改，也有幾顆是額外架在晶片接腳上的 (這張圖的下方是output)
有幾顆還蠻暴力的直接斜腳躺到另一顆上面借力。
http://gearautopsy.com/wp-content/uploa ... od-outputs .jpg
另一張preamp的
http://gearautopsy.com/wp-content/uploa ... reamps.jpg
可以跟未改以前的比較
vicnest 寫:harmonycentral的開箱文有寫到:High performance 32-Bit DAC
AK4480 is a 32-bit DAC which corresponds to DVD-Audio systems. An internal circuit includes newly developed 32bit Digital Filter for better sound quality achieving low distortion characteristics and wide dynamic range. The AK4480 has full differential SCF outputs, removing the need for AC coupling capacitors and increasing performance for systems with excessive clock jitter. The AK4480 accepts 216kHz PCM data and 1-bit DSD data, ideal for a wide range of applications including DVD-Audio and SACD.
vicnest 寫:Gear Autopsy上的一段話:Positioned strategically to attract attention from buyers looking at mid to high-end boxes like the RME UFX and Lynx Aurora it has managed to earn quite a reputation. For most, the Apollo delivers not only on the quality of its conversion and preamps, but in its ability to run UAD2 plugins in the DAW and in real time. It’s such a fun and exciting box, in fact, it has even garnered much attention from the high-end pro arena. As good as the conversion quality is, it doesn’t sit next to boxes like the Apogee Symphony and Prism Orpheus that take digital conversion to the next level.
vicnest 寫:當初是有考慮Apollo QUAD，不過當初不買他是因為電源是外接的4PIN的奇怪規格
由 vicnest » 2014-12-21, 21:30
由 drunkenlife » 2014-12-23, 00:40
vicnest 寫:兩年前買機器的時候應該沒想過要買"好改"的吧。
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如果不是聽過你改機那台表現這麼顯眼，我也不會想改。
vicnest 寫:(心裡是覺得...堪用就好，不過重點是這麼貴了還不堪用....心裡只能罵RME shit...)
vicnest 寫:那個32bit DAC是輸出解析度能到32bit吧，規格看起來比較強些。不知道他怎麼轉換就是囉。
vicnest 寫:(心裡是覺得...堪用http://www.akm.com/akm/en/file/datasheet/AK4480EF.pdf
寫給bluray的，到是不知道bluray電影的audio輸出有到32bit啊?!
由 vicnest » 2014-12-23, 10:17
drunkenlife 寫:vicnest 寫:兩年前買機器的時候應該沒想過要買"好改"的吧。
...
...
如果不是聽過你改機那台表現這麼顯眼，我也不會想改。
不是老早聽過我那隻拖來拖去的電池版？
