如何打造現代化的High End系統？

[Leo Yeh]

New Headphone/Pre-Amp with USB/DAC from the "Midnight Blue" series
Model 4733 Midnight Blue
Headphone/Pre-Amplifier

Inputs : Coaxial, USB, Line 1, Line2
Out puts : 1x Speaker, 1x Headphone, RCA Jack
Output power 2W/ Ch. at 8 ohm
Dimension 123W x 96H x 208D
Weight : 1.7kg

MSRP $1750

The second of the Midnight Blue series is probably one of the most flexible headphone/pre-amplifier in the market today. It is a headphone/pre amplifier with USB/DAC on board and has 2W output, meaning it can drive small computer speakers without additional power amp. It is an active pre-amplifier with USB, coaxial and 2 x RCA inputs. The circuit board is Junji's proprietary simple design.

Sound? You do not need to ask if you are already familiar with any of 47 Lab products.

[yellowflood]

目前的訊源是fm tuner + SACD player
目前計劃從桌上型電腦連接usb dac到擴大機
但這個不會是主要的訊源,推測聲音會比SACD player差

但如果想完全數位流呢?
出售SACD player，換成筆電+usb dac
fm tuner維持不變
那我那些SACD怎麼辦?如何轉檔?(sweat)

[Leo Yeh]

SACD還有CD層

不過何必賣SACD呢....

我就都有呀.....

[Leo Yeh]

無線通訊進入「秒殺時代」！清華大學物理系教授潘犀靈領導國科會研究團隊，成功利用一千億赫茲（100GHz）載波頻率研發出傳輸速率高達每秒二百億位元（20Gbit/s）無線通訊關鍵技術和系統，可在一秒內下載十部片長兩小時的高畫質ＤＶＤ電影，成為全球速度最快的無線通訊系統。

　與現有３Ｇ手機傳輸速率每秒二百萬位元比較，國科會研究團隊研發的「超高速光電無線通訊技術」，傳輸速率是３Ｇ手機的一萬倍，直接帶動無線通訊技術向前跨越兩個世代。

　國科會工程技術發展處長李清庭指出，由潘犀靈領軍的清華大學、交通大學和中央大學跨校研究團隊，在超高頻超高無線通訊領域已建立許多關鍵技術，居全球領先地位，有機會發展成為都會型無線通訊網路主流。

　潘犀靈表示，隨著智慧型手機普及和超高畫質３Ｄ影像時代來臨，現有３Ｇ或研發中的４Ｇ無線通訊技術，都很難滿足消費者在未來十年內對頻寬和速度的使用須求。

　潘犀靈指出，光纖網路雖然擁有足夠頻寬，卻缺乏無線通訊的機動性，「超高速光電無線通訊技術」結合有線與無線兩種通信系統，可以把傳輸速率提升到每秒二百億位元，而且傳播到幾十公里外，也不會影響訊號清晰度。

　日韓已投入六百億赫茲無線通訊技術研發，預估在五年內上市，清華大學光電研究所助理教授黃承彬表示，我國通信業者可以直接跳過六百億赫茲，在一千億赫茲做好技術布局，把戰場拉到「下下世代」。他透露，研究團隊可望在今年暑假將載波頻率拓展到一兆赫茲，把傳輸速率提升到每秒一千億位元以上，提升通信業競爭力。

[Leo Yeh]

Human Audio Tabla SB Interface

The development at Human Audio turns to PC-based listening as well. At end of this way one new device has born: "Tabla" which was the missing link from the people who wants to listen music from the PC on the higest level. With this new device we're able to connect our existing audiophile / high-end DAC (or the next generation "Libretto HD" CDP) with the PC in order to listening audio streams up to 24bit/192kHz. Tabla needs only one free USB 2.0 port on the PC and the output is a coaxial digital (BNC or RCA) for the DAC direction. Based on the Human Audio philisophy this device is purely battery powered with the built in two pieces high-grade Lithium-Iron-Phosphate (LiFeSO4) cells. The charging is fully automatic without any external device since the Tabla could use the USB power for charging purpose at idle times. The Tabla can provide ultimate audio performance through the totally independent smooth battery powering, ultra-low jitter circuits, specialized pulse transformer and of course with one of the best USB-Audio algorithm on the market. (Mac OS and Windows based PC's are supported)

[Leo Yeh]

[Leo Yeh]

McAUDI MD3300
発売日 2011年4月20日
価格 ￥291,900（税込）
http://www.mcaudi.co.jp/product/md3300/md3300.html



http://www.mcaudi.co.jp/product/md3300/md3300.html

[Leo Yeh]

Abbingdon Music Research's new DP-77 [$4.995]

Abbingdon Music Research's new DP-77 [$4.995] with its Gemini Digital Engine allows selection between a 16-bit non-oversampling chip and a 32-bit chip for a 'best of both worlds' approach between legacy Redbook CD and PC-audio high-resolution files. The 24/192 USB input is asynchronous and there are minimum-phase apodizing reconstruction filters to minimize pre-ringing. The DAC's 'global master timing' clock is adaptive to avoid stepped matching to incoming sampling frequencies. Instead it scans continuously between 28.000.000 discrete frequencies to mirror the incoming data rate perfectly.

Four of the nine digital inputs work through a tube buffer and in preamp mode the DP-77 offers 71-step analog volume control with a resistor array.

[小佐]

不知像這個圖片右方兩個輸入~~
Balanced Input
Unbalanced Input

這要做什麼用的???(sweat):O

[Michael99]

不知像這個圖片右方兩個輸入~~
Balanced Input
Unbalanced Input

這要做什麼用的???(sweat):O

當前級用囉:*:*:*