數位昇頻延續著Wadia傳統，採用DigiMaster 1.4，Wadia原廠宣稱理論上具備26 bit的解析，最高可達2.822MHz的取樣頻率，所以931/921已經預備好DSD的能力，只等SACD轉盤出現。

2008年6月6日 · 931是—台数码控制中心，它除了作为数码讯源与921解码器之间的数码流传输平台之外，也可作为整个Wadia数码系统的总时钟控制中心(它内置一份超级稳定控温水晶振子（TCXO)总时钟线路，不但为两台921提供精准的同步时钟讯号，同时也可以为其他作配 …

2002年12月3日 · 為了證明亞叔沒有聽錯，決定邀請何森到吾家一同聽Wadia 931/921與唱盤即場比試。 結果是唱盤一敗再敗，何森亦只得承認CD已取得重大突破，Wadia 931/921絕對是LP殺手。

2008年6月6日 · 931+921采用Wadia最新成功开发的升频和滤波软件Digi Master 1.4，取样频率高达2.8224MHz和26比特的超高解像度。(这是否意味著这套组合将来可以解调SACD的DSD数码流?厂方没有说明，考起！

2009年6月18日 · 数位昇频延续着Wadia传统，採用DigiMaster 1.4，Wadia原厂宣称理论上具备26 bit的解析，最高可达2.822MHz的取样频率，所以931/921已经预备好DSD的能力，只等SACD转盘出现。

2009年12月19日 · This is Wadia’s finest piece to date, giving the resolution and clarity they are famous for, but achieving something that also sounds natural and real. This DAC adds nothing to the performance. If you are looking for a big, lush, romantic sound, either the 9 series is not for you, or you will need to refine your sound further down the chain.

2009年9月14日 · I was considering the upgrade but was advised by Wadia that it might be worth it to wait until they completed the USB input circuitry and do it all together. I have since sold the 921 set but it remains a formidable digital source in my estimation.

2004年1月17日 · the 921 was more than just a dac. Sound of the Wadia was very nice, though the rest of the system was better than the supporting system in the meitner room, IMHO. build quality (at least from the outside) on the Wadia seemed to be to a higher standard. will be interesting to see what they come up with for a SACD transport.

AV&ホームシアターのポータルサイト「PHILE WEB」がお届けする、WADIA「Wadia 921」の詳細情報。 ニュースや価格、スペック、レビュー、売れ筋動向などが一覧できます。

Wadia 9 Series Decoding Computer System is a high-end audio decoding system that features a DigiMaster algorithm for reproducing music, glass fiber optics, Direct-ConnectTM system and ClockLinkTM proprietary jitter-reduction technology.