babadono

Ding! Ding! Ding! Winner. Winner. Winner

Ain't that the truth.

I tried to explain in a previous post about keeping the inter chassis currents and signal currents separate by the way we connect our cables. The shield if connected properly is carrying only the inter chassis currents between the units. It is also draining off any electrostatically induced currents to some degree determined by the shield's effectiveness. Different cable types have shields of different effectiveness(a whole 'nother subject). Did you get a chance to read the AES seminar document that I posted a link to in a previous post? Mr. Whitlock explains this much better than I could ever hope to. He has devoted a great part of his life to understanding, explaining and disseminating this knowledge. He uses science and physics not snake oil and voodoo. I know pretty scary huh As far as modifying settings in the Xilica I am just getting started like you. But I really do not have much time to do this until winter. So far I'm just using settings from ChrisA.

Sorry I did not see this yesterday or I skimmed right over it. The short answer is YES a properly terminated(connected) shield is at least partially SHIELDING the inner conductor(s) from electrical fields. And yes if it was not connected it would be ineffective.

D-E-E-T-R-O-I-T I used to deliver papers for the Free Press in the wee early morning hours when I was knee high to a grasshopper. Detroit is a nice place to be----from.

Yea the dealer told me to Bring My Wallet

If you use engineered hardwood flooring on a wall can't you put the fasteners in at an angle that then gets covered by the next piece? Just like a floor?

Files will have an extension .XDAT. Store them on your computer in a new directory of your choice. I call mine "Xilica Files" Imagine that. Do you have the XConsole App. up and running? And are you connected to the crossover? I am assuming you are. If so you will be able to open the .XDAT file and download to the crossover. Then store it in the crossover so you don't have hook up your computer all the time.

You have a digital active crossover now. I don't see why there is any limitation on boosting as opposed to only using cutting in the filters. Of course you can't go crazy and overload the unit. I don't know if you saw my post in my Jube thread but I figured out what the front panel meters are indicating. There are showing level in dB below 0dBFS. And 0dBFS to Xilica is +20dBu. So as long as none of the red LEDs on the front panel meters are illuminating you are not overloading the Xilica. The meters in the XConsole App. are showing levels calibrated in dBu and are therefore much more useful in MHO.

Now you're getting into where I need to go also. This is more @Chris A 's bailiwick. I would not want to even pretend I know anything about this yet except following someone else's instructions.

Yes.

Where are those red herrings?

Remove jumper from minus to chassis at euroblock. Connect shield to black wire at RCA end. This will make chassis currents flow in separate conductor(shield in this case). and not in the signal ground.

Yes I posted in another of your threads about this, that I have knowledge about the internal workings/topology of Xilica's output circuits. I know that Xilica's output circuit is only a balanced impedance, there is no active signal on the minus output only signal ground through an impedance that matches it to the plus output impedance. Therefore we can connect it directly to the ground of the unbalanced equipment at the RCA connector. Thus far I have only used my Xilica with balanced inputs. But have No Fear, it will work.

A lot of Presonus's diagrams are direct copies from Mr Whitlock(see AES seminar linked above). What confusion are you still having about connecting the Xilica outs to the amps RCA inputs?

For your reading pleasure: https://centralindianaaes.files.wordpress.com/2012/09/indy-aes-2012-seminar-w-notes-v1-0.pdf

Exactly the same thing? Well not exactly. They are NOT the same. An ohm meter will tell you they are the same, but they are not. You must think in terms of where the currents will flow.

You must think in terms of where the chassis currents and signal currents will flow. These two arrangements are NOT the same. The diagram does not explicitly show that the black wire is a shield. In the 3 conductor cable the chassis current on pin 1 of the XLR will flow on a separate conductor(the shield) all the way down the cable until it gets to the RCA connector where it will tie to the chassis of the unbalanced equipment. The signal ground current on pin 3 of the XLR will flow through the blue wire of the twisted pair until it gets to the RCA connector where it connects to the same point as the shield, because in unbalanced equipment the signal ground and chassis ground are the same point. In the 2 conductor cable with pins 1 and 3 of the XLR jumpered together the chassis and signal ground currents flow in the same conductor(most likely a shield). This can cause Common Impedance Coupling(CIC). The 2 conductor arrangement is used all the time but is not optimal. Someone may use it satisfactorily for years and then they add a component to their system or just move their system and start having problems because the chassis ground current couples a signal onto the signal ground and the unbalanced equipment has no mechanism to discriminate between wanted and unwanted signals.

Ow. Hurts just to think about it. I hope you are feeling better.

Be nice. We know your wife. And we like her.

If the RCA end is wired properly you're good to go. But I thought you said the RCA to XLR is only 2 conductor. Is it 2 conductor PLUS shield?

Yes. Or order some of these in the length needed. Lop off (or un solder)the XLR end. Use the resulting bare wires into the phoenix connectors: https://www.monoprice.com/product?c_id=115&cp_id=11509&cs_id=1150902&p_id=4777&seq=1&format=2 You will see from their wiring diagram the proper way to wire RCA connector to a balanced cable

Advance to the rear.

https://www.monoprice.com/product?p_id=5279 Get one of these in the wire gauge and length of your choice. The ground prong won't attach to anything anyway. Should still work.

The output of the Xilica is balanced impedance but there is NO SIGNAL on the minus output. It is just ground through an impedance that is equal to the plus output. Does your cable have 2 conductors or 3? The best way to wire this type of output to an unbalanced input (RCA) is using a 3 conductor cable (a twisted pair with a shield). The minus conductor of the twisted pair would then be connected at to the shield AT THE RCA connector along with the shield. This allows the inter chassis current to flow through the shield and not the signal conductor.