AD/DA converters

John Brook · 23rd January 2006

A question for anyone with bonefide electrical engineering credentials:

I like to keep my life simple - the fewer the boxes, the fewer the cable connections, the happier I am. Thus, I am looking at purchasing a Fostex D824MkII for field recordings.

The Fostex D824MkII uses the following chips: AD:AKM5393, DA:AKM4393. How do these rate? Are they qualitatively somewhere near the Lynx or Apogee?

Constructive thoughts would be greatly appreciated. Thanks.

John

Fletcher · 23rd January 2006

First let me apologize for not having electrical engineering credentials... so please feel free to dismiss this response with extreme prejudice... but... the chips used for the conversion process have no where near as much influence on the overall sound of the unit as the analog electronics [including but not limited to the "aliasing filter"] and the stability [or lack of stability] of the clock.

Many of these things use the same chip sets with radically different tonal textures as a result.

Best of luck with your search.

**George Necola** · 23rd January 2006

Fletcher right

John Brook · 26th January 2006

Thanks for the input. It goes without saying that the quality in the rest of the chain is important. But I know nothing about the A/D D/A chips. Are these decent chips? What chips do Lynx and Rosetta use?

John

23rd January 2006	#1
John Brook Gear maniac Join Date: Jan 2006 Posts: 179 Thread Starter	AD/DA converters A question for anyone with bonefide electrical engineering credentials: I like to keep my life simple - the fewer the boxes, the fewer the cable connections, the happier I am. Thus, I am looking at purchasing a Fostex D824MkII for field recordings. The Fostex D824MkII uses the following chips: AD:AKM5393, DA:AKM4393. How do these rate? Are they qualitatively somewhere near the Lynx or Apogee? Constructive thoughts would be greatly appreciated. Thanks. John

23rd January 2006	#2
Fletcher member no 666 Join Date: Jun 2002 Location: Durham, NC Posts: 9,464	First let me apologize for not having electrical engineering credentials... so please feel free to dismiss this response with extreme prejudice... but... the chips used for the conversion process have no where near as much influence on the overall sound of the unit as the analog electronics [including but not limited to the "aliasing filter"] and the stability [or lack of stability] of the clock. Many of these things use the same chip sets with radically different tonal textures as a result. Best of luck with your search. __________________ CN Fletcher Professional Affiliations: R/E/P Professional Recording Engineer and Producer forums - serious hobbyists welcome TELEFUNKEN Elektroakustik SoundPure.com mwagener wrote on Sat, 11 September 2004 14:33 We are selling emotions, there are no emotions in a grid Roscoe Ambel once said: Pro-Tools is to audio what fluorescent is to light

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23rd January 2006	#3
George Necola PC Moderator Join Date: Mar 2005 Location: Winterthur, Switzerland Posts: 7,667 1 Review written	Fletcher right

26th January 2006	#4
John Brook Gear maniac Join Date: Jan 2006 Posts: 179 Thread Starter	Thanks for the input. It goes without saying that the quality in the rest of the chain is important. But I know nothing about the A/D D/A chips. Are these decent chips? What chips do Lynx and Rosetta use? John