bypass ad converter in dbx

slr 5000 · 19th July 2008, 02:10 AM

hi all im using a meridian 588-24 cd into a dbx260 and i would like to know if its possible to wire the meridian using the digital out into the dbx and bypass the a to d converter in the dbx.i feel this would be much better for sound quality as the dac in the meridian would be way better than the converter in the dbx
i would greatly appreciate any help or ideas cheers

rfbrw · 19th July 2008, 06:58 AM

Possible but not without a lot of work.You would need to know the internal sample rate of the dbx260, the a/d chip and its master clock frequency and where it is generated. And there is more after that.

slr 5000 · 19th July 2008, 10:29 AM

would it be worthwhile or would it be just as effective to uprade the ad converter and clock in the dbx .is there anything else that could be upgraded inside like opamps and such .i dont mind a bit of work if i can get some guidence . cheers

rfbrw · 19th July 2008, 12:06 PM

It would be better, in theory at least, to avoid a D/A - A/D cycle by using the digital connection between the Meridian and the dbx. Upgrading the A/D would call for as much if not more work than adding some form of digital input.

slr 5000 · 19th July 2008, 10:17 PM

adding a digital input somehow to the dbx would be ideal unfortunatly they do not have one .im hoping someone here has got around this problem before and can provide some insite as to how .

Brett · 19th July 2008, 10:37 PM

Quote:

Originally posted by slr 5000
adding a digital input somehow to the dbx would be ideal unfortunatly they do not have one .im hoping someone here has got around this problem before and can provide some insite as to how .

Best of luck, but don't hold your breath. The dbx is used by very few 'philes especially as the DCX is cheaper and uses more generic components (I believe dbx use their own design ADC) and so is easier to modify.

rfbrw · 20th July 2008, 08:36 AM

Quote:

Originally posted by slr 5000
adding a digital input somehow to the dbx would be ideal unfortunatly they do not have one .im hoping someone here has got around this problem before and can provide some insite as to how .

The basics are fairly straightforward but few would try it without a schematic or service manual.

19th July 2008, 02:10 AM	#1
slr 5000 diyAudio Member Join Date: Oct 2007 Location: melbourne	bypass ad converter in dbx hi all im using a meridian 588-24 cd into a dbx260 and i would like to know if its possible to wire the meridian using the digital out into the dbx and bypass the a to d converter in the dbx.i feel this would be much better for sound quality as the dac in the meridian would be way better than the converter in the dbx i would greatly appreciate any help or ideas cheers

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19th July 2008, 06:58 AM	#2
rfbrw diyAudio Member Join Date: Oct 2001 Location: .	Possible but not without a lot of work.You would need to know the internal sample rate of the dbx260, the a/d chip and its master clock frequency and where it is generated. And there is more after that.

19th July 2008, 10:29 AM	#3
slr 5000 diyAudio Member Join Date: Oct 2007 Location: melbourne	would it be worthwhile or would it be just as effective to uprade the ad converter and clock in the dbx .is there anything else that could be upgraded inside like opamps and such .i dont mind a bit of work if i can get some guidence . cheers

19th July 2008, 12:06 PM	#4
rfbrw diyAudio Member Join Date: Oct 2001 Location: .	It would be better, in theory at least, to avoid a D/A - A/D cycle by using the digital connection between the Meridian and the dbx. Upgrading the A/D would call for as much if not more work than adding some form of digital input.

19th July 2008, 10:17 PM	#5
slr 5000 diyAudio Member Join Date: Oct 2007 Location: melbourne	adding a digital input somehow to the dbx would be ideal unfortunatly they do not have one .im hoping someone here has got around this problem before and can provide some insite as to how .

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