[AV] 試 HiFi 玩具 - Linn DS Digital Out

[Raymond Wan]

一直以來，也希望找機會，嘗試一下以 Digital Streaming 傳輸 Audio Files

用 Mark Levinson No.30.6 作解碼的播放效果



終於有空閒時間，可進行此項比較，感受其性能

多謝熱心 Linn 用家朋友，慷慨借出手上 Majik DS 給我作系統嘗試

[wagonr96]

[W0S0L00]

一直以來，也希望找機會，嘗試一下以 Digital Streaming 傳輸 Audio Files

用 Mark Levinson No.30.6 作解碼的播放效果



終於有空閒時間，可進行此項比較，感受其性能

多謝熱心 Linn 用家朋友，慷慨借出手上 Majik DS 給我作系統嘗試

[Raymond Wan]

由於已組建了 Digital Streaming 系統，多加入 Majik DS 在系統內，十分容易







插上 Power Cord, LAN Cable 及 Digital Coaxial Cable 即可

在 Linn Konfig 中馬上可見原有的 Linn Klimax DS 及新加的 Linn Majik DS

[Raymond Wan]

Linn Majik DS

[Raymond Wan]

配上 Mark Levinson No.30.6 Digital Processor (DAC)

在 Linn Majik DS 選 Digital Out 是 Raw --> Output 是 Direct (即 16/44.1 --> 16/44.1)

而 Digital Out 是 Fixed --> Output 會 Upsampling 或 Downsampling 至 88.2kHz 或 96kHz







Ripped CD Input (16bit/44.1kHz) --> Output (16bit/44.1kHz)


Ripped CD Input (16bit/44.1kHz) --> Output (16bit/88.2kHz)

[thomas449]

[Raymond Wan]

Master Audio Input 24bit/96kHz --> Output 24bit/96kHz

[Wildcat]

[r32]

期待已久

[Raymond Wan]

我的 Mark Levinson No.30.6 只 Support 最高至 96kHz Digital Input

故如以 192kHz Input，Mark Levinson No.30.6 是不能作解碼 (No DAS)

Master Audio 24bit/192kHz Input --> (Raw) Output 24bit/192kHz




所以要 Play 24/192 Audio Files，要在 Majik DS 中 Set Digital Output 至 Fixed Sample Rate

Master Audio 24bit/192kHz Input --> (Fixed) Output 24bit/96kHz


但這樣 Down-sampling 的效果是不佳的，因 Linn 用的是 "Crude Decimation" 方法，播放時是有 Noise 的

The 'fixed' setting was originally included to deal with low sample rate (sub 32kHz) streams such as internet radio. Most SPDIF receivers cant lock on to such low sample rates, so it is useful to be able to upsample to a more commonly supported rate. It was not really envisaged that many customers would use this feature to downsample a higher sample rate stream. For this reason, the conversion from 192k to 96k in 'fixed' mode is done by crude decimation. Decimation (as opposed to downsampling) has the effect of aliasing high frequency components down into the audio band. Unfortunately, most 192k tracks have significant levels of noise above 96k (a side-effect of noise-shaping ADC's) which gets folded back into the audio band by the decimation process. This is almost certainly the noise you are hearing. We intend to improve the 192k downsampling process to fix this issue, but at the moment it would be better to either use the 'raw' setting (if your DAC can handle 192k), or alternatively use a software downsampler to do an offline conversion to 96k.

不過好彩我是不會用 Mark Levinson No.30.6 去 Play 24/192 的，因一定會用 Linn Klimax DS



故只考慮用 Mark Levinson No.30.6 去 Play :
(1) Ripped CD (16bit/44.1kHz)
(2) Master Audio (24bit/96kHz)

[Raymond Wan]

因為整個系統均接駁至 Mark Levinson No.32 前級

故只要輕按一下遙控，便可很方便的選擇那個 Input

(1) Play Red Book CD
(2) Play Ripped CD (Majik DS)
(3) Play Ripped CD (Klimax DS)



Switch to Majik DS Input






Switch to Klimax DS Input

[諸星當]

[brian_av100]

富豪的腐化post, support

[motobee]