[soewhatman]

I've read that the DCX2496 needs a higher voltage input, being a piece of pro audio gear,  to work properly as a full range crossover.  Are you guys finding this necessary still when using the DCX as low pass only, with only the lower frequency range?  I'm considering using one for low pass and filter duties on a subwoofer, but don't want to mess with stepping the source signal up and the output signal back down.  Simple rca->xlr cable adapters I can handle though.

Rick.

[lofreek]

For level matching ahead of my DCX2496, I am using the Morley Ebtech level shifter;

http://www.ebtechaudio.com/lls-2des.html

Transformer based passive gain increase.

[Bob in St. Louis]

Nope, I'm feeding it from a HT receivers Low frequency "sub-out" RCA jack. No external gain from any form of amp. The HT receiver can change that channel by +/- 10dB, but if memory serves, it's either set at zero (0) or +1dB, can't remember. RCA-XLR adaptors work great.

As an (interesting) side note, I was (playing) getting 115+SPL during a movie sequence from the whole system and the DCX's output LED's were only lighting up ONE LED. I've never seen the 'second tier' LED's.
So yea, maybe it would like more input power. But I don't think I need *much* louder than I've got now.
I could be wrong. 

Bob

[soewhatman]

I picked up a DCX2496 yesterday at the local Guitar Center and it does seem to work fine as a low pass filter/equalizer with just xlr->rca adapter cables.  I'm curious though, lofreek, did you try comparing with and without the level shifter?  Did you notice any difference if you did.

Rick.

[jtwrace]

For level matching ahead of my DCX2496, I am using the Morley Ebtech level shifter;

http://www.ebtechaudio.com/lls-2des.html

Transformer based passive gain increase.

Never heard of this product.  Work well?  Can it solve amp clipping issues?

[warnerwh]

The smartest move is to use an outboard dac and just use it in the digital domain imo.  I'm assuming the DCX has digital in/out like the DEQ does.  With the DEQ I personally couldn't deal with using the inboard dacs which is what happens when you use the analog jacks on the DCX.  It seemed hard sounding to me. 

To the above poster:  Amp clipping can be cured by turning the volume down or buying a more powerful amp. Remember doubling the power increases volume only 3db which is only slightly audible.  To double the volume you need 6-10 times more wattage. Btw I say 6-10 because it depends on who you want to believe. In other words a typical 100 watt amp would need to be 600 to 1,000 watts per channel.  Most good amps do have some dynamic headroom too. Either way power is cheap these days. 

[Jerrym303]

soewhatman,

I have found just the opposite.  It is possible to overload the input stage of the DCX.

I typically play my MW Transporter, which probably has 1.5V output with the tubes I use, and a Dodd Battery Preamp with 16 db of gain in front of the DCX.

I cannot go past about 2:30 0r 3PM on the Dodd or I overload the input stage.  Interesting, I can increase the DCX output stage without too many bad effects to get where I want to be and a little beyond.  I am eager to upgrade the output stage to get rid of the minor ill effects of suing output gain. (hint, hint, Clayton or Dan)

I am in a big room - 22x33.

Jerry

[Angaria]

The smartest move is to use an outboard dac and just use it in the digital domain imo.  I'm assuming the DCX has digital in/out like the DEQ does.  With the DEQ I personally couldn't deal with using the inboard dacs which is what happens when you use the analog jacks on the DCX.  It seemed hard sounding to me. 

No it doesn't - somewhat involved mod to get it to do pure digital IO as well.

[lofreek]

Regarding the level shifter, it might not be necessary in certain situations. It depends primarily on your preamp output level.

If using low pass only, hiss due to incorrect gain staging will not be a factor.

[jtwrace]

this looks really interesting:

http://www.selectronic.fr/dcx2496_us.asp

[StevenSurprenant]

this looks really interesting:

http://www.selectronic.fr/dcx2496_us.asp

I realize that this thread is old, but since I am reading it, I assume that others will too...

I installed the Selectronic output board and the transparency increased a great deal.  I would consider this a major upgrade.  I wouldn't own another DCX without this board or with some other output modification, it's a huge improvement.

I also plan to upgrade the power supply and input board, but since I haven't done it yet, there is nothing I can say.

[cdaddict]

I can tell you first hand ,an engineer that helped in my design going back even before Berenger to DBX this guy also does mods which he did not only my beringer 2496 but aso my dac and pre ,that was previously modded from a well known modder i won't mention online and found several ways to not only better it but to fix the flaws that the previous modder made in the signal path. The Guy I found goes back over 35 years and has worked for companys such as Theta digital , Madrigal,even Grummen Avionics electronics.I have been to a few modders in the past I was lucky to find this guy especially in the north east .He does not advertise ,if you needed something done at it's best this is the Ace but he has a 3 weeks average wait. The list is to long for all the things I have had done a 20% improvement was min but the Beringer is very cheap in parts quality if one of you guys needs help i what was done email me for the list is substantial, Joe.

[StevenSurprenant]

The Guy I found goes back over 35 years and has worked for companys such as Theta digital , Madrigal,even Grummen Avionics electronics.I have been to a few modders in the past I was lucky to find this guy especially in the north east .He does not advertise ,if you needed something done at it's best this is the Ace but he has a 3 weeks average wait. The list is to long for all the things I have had done a 20% improvement was min but the Beringer is very cheap in parts quality if one of you guys needs help i what was done email me for the list is substantial, Joe.

Tell me more about this guy and your list.

Thanks

[Biscuit]

I can tell you first hand ,an engineer that helped in my design going back even before Berenger to DBX this guy also does mods which he did not only my beringer 2496 but aso my dac and pre ,that was previously modded from a well known modder i won't mention online and found several ways to not only better it but to fix the flaws that the previous modder made in the signal path. The Guy I found goes back over 35 years and has worked for companys such as Theta digital , Madrigal,even Grummen Avionics electronics.I have been to a few modders in the past I was lucky to find this guy especially in the north east .He does not advertise ,if you needed something done at it's best this is the Ace but he has a 3 weeks average wait. The list is to long for all the things I have had done a 20% improvement was min but the Beringer is very cheap in parts quality if one of you guys needs help i what was done email me for the list is substantial, Joe.

Do you have his contact info?  Also, do you have a description of what he did to the DCX?  What mods were done and how much did they cost?  Thanks.