Modify behringer DEQ2496? - Page 9

OLES · 13th April 2006, 12:52 PM

I greet
what is on regulator Vout LM317?

courage · 7th July 2006, 05:07 AM

LM317T front view, from left to right:

1= ADJ
2= Vout
3= Vin

janneman · 21st July 2006, 10:32 AM

Hi,

I have designed a form-fit-function replacement output board for the DCX2496, an article on it has been published by AudioXpress (August issue). You may want to take a look at that.

Jan Didden

Edit: Just realised this thread is on the DEQ not the DCX. Sorry....

courage · 21st July 2006, 11:02 AM

Jan,

No problem. As I am also looking into possibilities to use the DCX with my Maggies, the information may still be of benefit to me and hopefully others.

Thanks for mentioning.

ChuckT · 10th August 2006, 10:36 AM

Haven't touch my deq2496 for a while as I was working on my harddisk media player (TVIX) with I2S to TDA1541 (yes, that setup sounds really good, if someone can tell me how to interface I2S with deq, I will be very happy...)

Anyway, last night, I tap the ak4393 direct out to a tamura 300:600 tranny, it sounds really good, only got one channel working so far...

But the PS, the 9V is really really important, it feeds the 7805 that provides all chips that uses 5V, this includes the dac of cause.
And the 9V doesn't seems to go thru any inductor to reduce noise, so should be a good idea to add a coil and more caps for that 9v. The 7805 gets really hot with means its drawing quite a bit of current.

The LM317 will take the 5V and output 2.5V, so should be for the dsp chips. I found that there is a ceramic directly at the LM327 output, a real no no for this type of regulator, so I took it out.

mbcouple · 10th August 2006, 03:40 PM

Instead of improving the supply to the 7805, you would be better of removing the 7805's from the board, and using outboard discrete regulators like jung, super-jung or similar boards. Selectronic sells a replacement regulator kit at an affordable price, or you can do your own.
Hans

tubesguy · 10th August 2006, 09:48 PM

Hans -

Do you have a cite to the Selectronic kit that you mentioned? Apparently my google skills are not up to snuff. TIA- Pat

mbcouple · 10th August 2006, 10:03 PM

http://www.selectronic.fr/article.as...tier=60.3013-1

ChuckT · 11th August 2006, 10:00 AM

Ouch, that regulator is expensive.
Providing seperate very low noise for each chip doesn't cost that much. Eg, some like the LT1027, LT1763 will probably do as good if not better.

titoon · 15th August 2006, 10:03 PM

sorry for my english

this tweak in french only

http://www.dcx2496.fr/

and

http://groups.yahoo.com/group/DCX2496/

english speak

7th July 2006, 05:07 AM	#82
courage diyAudio Member Join Date: Feb 2006 Location: Neverland	LM317T front view, from left to right: 1= ADJ 2= Vout 3= Vin __________________ Franklin

21st July 2006, 10:32 AM	#83
janneman diyAudio Member Join Date: May 2002 Location: Where Germany, The Netherlands and Belgium meet Blog Entries: 6	Hi, I have designed a form-fit-function replacement output board for the DCX2496, an article on it has been published by AudioXpress (August issue). You may want to take a look at that. Jan Didden Edit: Just realised this thread is on the DEQ not the DCX. Sorry.... __________________ /New Linear Audio publication: Baxandall & Self on Audio Power!

21st July 2006, 11:02 AM	#84
courage diyAudio Member Join Date: Feb 2006 Location: Neverland	Jan, No problem. As I am also looking into possibilities to use the DCX with my Maggies, the information may still be of benefit to me and hopefully others. Thanks for mentioning. __________________ Franklin

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Behringer DEQ2496 Schematic	Claus	Digital Line Level	12	10th July 2011 02:40 AM
FS:Behringer DEQ2496	Ryssen	Swap Meet	15	16th April 2009 09:24 PM
Behringer DEQ2496//Non-Delay ModHELP	syntaxsinner	Digital Line Level	5	26th April 2006 04:27 PM
FS: Behringer DEQ2496 UltraCurve Pro	Rescue Toaster	Swap Meet	3	4th February 2006 02:38 AM
Behringer DEQ2496 into T Amp?	joesan	Digital Source	7	19th October 2005 11:30 AM


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

10th August 2006, 10:36 AM	#85
ChuckT diyAudio Member Join Date: Nov 2002 Location: HK	Haven't touch my deq2496 for a while as I was working on my harddisk media player (TVIX) with I2S to TDA1541 (yes, that setup sounds really good, if someone can tell me how to interface I2S with deq, I will be very happy...) Anyway, last night, I tap the ak4393 direct out to a tamura 300:600 tranny, it sounds really good, only got one channel working so far... But the PS, the 9V is really really important, it feeds the 7805 that provides all chips that uses 5V, this includes the dac of cause. And the 9V doesn't seems to go thru any inductor to reduce noise, so should be a good idea to add a coil and more caps for that 9v. The 7805 gets really hot with means its drawing quite a bit of current. The LM317 will take the 5V and output 2.5V, so should be for the dsp chips. I found that there is a ceramic directly at the LM327 output, a real no no for this type of regulator, so I took it out.

10th August 2006, 03:40 PM	#86
mbcouple diyAudio Member Join Date: May 2004 Location: Indy	Instead of improving the supply to the 7805, you would be better of removing the 7805's from the board, and using outboard discrete regulators like jung, super-jung or similar boards. Selectronic sells a replacement regulator kit at an affordable price, or you can do your own. Hans

10th August 2006, 09:48 PM	#87
tubesguy diyAudio Member Join Date: May 2002 Location: Madison, WI	Hans - Do you have a cite to the Selectronic kit that you mentioned? Apparently my google skills are not up to snuff. TIA- Pat

10th August 2006, 10:03 PM	#88
mbcouple diyAudio Member Join Date: May 2004 Location: Indy	http://www.selectronic.fr/article.as...tier=60.3013-1

11th August 2006, 10:00 AM	#89
ChuckT diyAudio Member Join Date: Nov 2002 Location: HK	Ouch, that regulator is expensive. Providing seperate very low noise for each chip doesn't cost that much. Eg, some like the LT1027, LT1763 will probably do as good if not better.

15th August 2006, 10:03 PM	#90
titoon diyAudio Member Join Date: Oct 2003 Location: belgium tournai	sorry for my english this tweak in french only http://www.dcx2496.fr/ and http://groups.yahoo.com/group/DCX2496/ english speak

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read