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Old 12th June 2003, 08:29 PM   #1
dimitri is offline dimitri  United States
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Default BiDAT/Meitner/MuseaTex/

Dear friends,

Could you provide me your opinion/info on that old product?

The new Mr. Meitner site is www.emmlabs.com

His patents are there:

http://patft.uspto.gov/netacgi/nph-P...&RS=PN/5329556

http://patft.uspto.gov/netacgi/nph-P...&RS=PN/5404362

http://patft.uspto.gov/netacgi/nph-P...&RS=PN/5388221

http://patft.uspto.gov/netacgi/nph-P...&RS=PN/5499315
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Old 1st August 2003, 11:54 AM   #2
dimitri is offline dimitri  United States
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Default bidat

I know, that Meitner IDAT uses a DSP-chip-based digital filter for continuous signals. This filter produces a normal squarewave shape, but switches to a filter algorithm optimized for transient performance on signals that are rich in transients.

But maybe somebody knows what receiver, DACs and symmetrical output stage were used?
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Old 14th August 2003, 06:16 PM   #3
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I'm using the Museatex Meitner Bidat with the Melior CD-D with full modifications from Museatex. (The Bidat allegedly replaced and bested the Idat at a far lower price.)

I find the sound to be on par with that I've heard from top of the line gear from DCS, Linn, Meridian, and ML.

I have yet to pop open the Bidat, but will be doing so soon to add dampening materials. Hence, I can't address your specific questions. My understanding is the Bidat employs proprietary adaptive algorithms chosen on the fly.

John Wright at Museatex might prove helpful...

(My Bidat and Transport are on a Vibraplane with multiple stages of power filtration.)
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Old 22nd April 2006, 07:21 PM   #4
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Here are some pics of the Bidat
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Old 22nd April 2006, 07:22 PM   #5
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Old 22nd April 2006, 07:24 PM   #6
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Filter caps are Panasonic SU 2200uF
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Old 22nd April 2006, 07:25 PM   #7
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The DAC is TDA1547
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Old 22nd April 2006, 07:28 PM   #8
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I/V is done with LF353, output chips are AD845.

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Old 22nd April 2006, 07:56 PM   #9
dimitri is offline dimitri  United States
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Thank you, Peter! The receiver is SAA7274 and digital filter is SAA7350. Is it correct? I noticed two (!) Motorola processors.
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Old 22nd April 2006, 07:59 PM   #10
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Comparing to ML360S, the sound is more listenable and involving, more musical as some may say. It has a bit less refinement, but overall I would prefer Bidat.

My unit isn't modified, although it has Supermod done. That DAC certainly needs modifications to achieve full potential..
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