Input C is also multi-duty but switches between a normal analog/ADC routing and a high-gain stage with phantom power for microphone usage.
Scott,
You definitely don't want the LE version. No digital input and no computer communication ability for programming via software. Those are two of the most important features of the normal version.
Dave.
ScottJ what type did you order? I understand there's several now, the old one that had the PCMCIA card slot in the front which I think is discontinued.
Then there is an LE I think, plus maybe another one. I am told one type does no longer have the digital input and/or the mic input?
Edit I see Davey made a similar comment.
Jan
I nearly made the mistake of buying the LE, but I have bought this one Behringer DCX2496 Ultradrive Pro Ultra High Precision Digital 24 Bit/96 kHz Loudspeaker Management System: Amazon.co.uk: Musical Instruments
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If I'm using CD player as my source would using the digital input be worse than the analogue due to the lower bit depth? What I'm trying to discover is whether there is a bit depth conversion as part of the upsampling of the digital input, or if it's just upping the sample rate
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The analog input signal is first converted to digital, then DSP-ed and then again converted to analog.
If you use the analog output from your CD player you will have two instances of D to A and one from A to D in your chain, probably not recommended.
I would stay digital as long as possible.
Jan
Please, please, please - do no worry about losing bits. You'll be going from 44/16 to 96/24 to begin with, so that's a huge gain for the processing. There is now 144dB of dynamic range within which to do any EQ. You'd have to lower the signal by 48dB to get back to the same bit depth you started with - and it's highly unlikely you'll be doing that much EQ. 
+1
Some CD players have SPDIF coax outputs; so those would be ideal sources for the DCX, Input A.
Since I have never measured or heard any shortcoming of the DCX or my various DACs, I would say it just doesn't matter much if you use an expensive external ADC or just plug analog signal into the DCX. If you use cone speakers, this is not the component that needs attention, eh.
B.
Does anyone know if the DCX2496 has AES3id? It can handle remarkable 1000m with an antenna cable. (rca)
A table over AES3id performance on this page
Interfacing AES3 and S/PDIF
If a unit sends AES3id, Will it be auto detected? I have done the spdif-mod and the 75ohm seems to be right for this feature as well (if it is in the box).
A table over AES3id performance on this page
Interfacing AES3 and S/PDIF
If a unit sends AES3id, Will it be auto detected? I have done the spdif-mod and the 75ohm seems to be right for this feature as well (if it is in the box).
Not sure there is any trouble using either signal in practice. I use SPDIF and it works fine on the AES Input A, even though the digit levels are nominally different. There is some reason to favour high-class matching coax like 75-Ohm, but again, prolly no difference in practice. Nice feature of digital.
If in doubt, you can chain all the rolls of coax you own to test a worst-case.
Asking for the hundredth time, if anybody (besides dealers) can post measurements showing audible deficiencies of the DCX.... I will be surprised.
B.
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You can ask a thousand times if you want, but "audible deficiencies" is a nebulous label.
There have been numerous testing results posted on the DCX for noise performance, THD, etc, etc, but how well any of those translate (to you, or anybody else) as subjective evaluation deficiencies is a question only you can answer. It's time for you to give it a rest.
The DCX has a 110 ohm termination on the digital input so a 75/110 transformer should probably be used if supplying from a S/PDIF source. However, a few users have simply used an RCA/XLR adaptor and seem to be doing okay. However, I don't know if that translates to any "audible deficiencies."
Dave.
Yup, every time I ask for evidence, I get the same answer. Funny thing, nobody can seem to find that evidence except that produced by dealers.
If there are so many posts with measurements that show problems, how about providing a link to three.*
I've done few dozen measurements which were entirely electronic circuits full of my old amps, laptops, DACs, and the DCX. Never saw THD or noise performance that was less than stellar and that seemed better than I could assess with my tools or ears or electrostatic speakers.
Thanks.
B.
*and then, I always get the same answer, "find it yourself"
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