Awesome, trust you to have examples on hand!
Awesome, trust you to have examples on hand!
Thanks-the pin layout on this drawing/schematic…US/Canadian looks familiar. In my previous post, I was talking about the Rotel amplifier-I think I did see that, I’m gonna check again-I just overlooked.
Okay, sorry for the newbie question-what is the Cold pin mean? PIN 2 on US/Canadian…another ground?
Okay-I just missed it on this Rotel amplifier…Pin 1=Ground Pin 2=In Phase/Hot Pin 3=Out of Phase/ColdHot = + or positive.
Cold = - or inverting.
Ground = Ground (chassis)
The old US/Canada wiring merely switched the +/- around. The ground didn't change.
Make that:Hot = + or positive.
Cold = - or inverting.
Ground = Ground (chassis)
The old US/Canada wiring merely switched the +/- around. The ground didn't change.
Thanks for this info. Yup, it’s confusing, but-starting to come together a bit more…Make that:
Hot = '+' or positive.
Cold = '-' or inverting.
Shield = chassis
There is no ground in a balanced interconnect system.
However in some microphone systems, Shield is also phantom power supply common.
* * * * * * * * * * *
Yep, it's confusing, because a balanced interconnect system is symmetrical about 'ground', but there is no 'ground' in the circuit.
A great example of no 'ground' is a transformer coupled interconnect.
It's even more confusing, as a transformer-coupled input can be fully floating, with no connection to ground, or centre-tapped with the centre of the transformer going to ground. Furthermore, the centre tap is necessary for phantom power for an active capacitor microphone.Make that:
Hot = '+' or positive.
Cold = '-' or inverting.
Shield = chassis
There is no ground in a balanced interconnect system.
However in some microphone systems, Shield is also phantom power supply common.
* * * * * * * * * * *
Yep, it's confusing, because a balanced interconnect system is symmetrical about 'ground', but there is no 'ground' in the circuit.
A great example of no 'ground' is a transformer coupled interconnect.
Hmm…think I’ll go back to reading;It's even more confusing, as a transformer-coupled input can be fully floating, with no connection to ground, or centre-tapped with the centre of the transformer going to ground. Furthermore, the centre tap is necessary for phantom power for an active capacitor microphone.
S
Man, if anyone hasn’t read this yet…about James H Cannon-Cannon Electric and just the Cannon family in general, it’s a very interesting read. The Cannons were a bad ass bunch…especially Martha Hughes Cannon-LOL.The Cannon XLR is a connector type. Whether or not the circuit is balanced depends upon other things than the connector. I have seen many examples of XLR connectors used essentially for the "pro look" that do not have differential, or even balanced, circuitry behind them. An XLR connector provides the ability to provide balanced or differential signals in a single connector. An RCA solution requires two connectors for a balanced/differential circuit (one for the in-phase "+" and another for the complementary "-" signal).
The signal level is similarly dictated by the circuitry inside and not the connector itself. The most common IME is +6 dB for the differential signal since two similar drivers each provide the same level but opposite polarity, doubling the effective voltage level. However, I've seen specs all over the map, especially for consumer units. Some designs use a balanced circuit that simply terminates one side for no gain, and some may use transformers or dividers that can reduce the gain (perhaps to provide lower distortion and higher headroom for the internal signal chain).
From Wikipedia:
History and manufacturers[edit]
Male and female XLR connectors with different numbers of pins
The XLR connector (also Cannon plug and Cannon connector) was invented by James H. Cannon, founder of the Cannon Electric company, Los Angeles, California. The XLR connector originated from the Cannon X series of connectors; by 1950, a latching mechanism was added to the connector, which produced the Cannon XL model of connector, and by 1955, the female connector featured synthetic-rubber insulation polychloroprene (neoprene), identified with the part-number prefix XLR. There was also the XLP series of connectors with hard plastic insulation, but the XLR model name is commonly used for all of the variants.[2][3][4]
Originally, the ITT Cannon company manufactured XLR connectors in two locations: Kanagawa, Japan, and Melbourne, Australia. The Australian factory was sold to Alcatel Components in 1992 and then acquired by Amphenol in 1998. Later, the Switchcraft corporation manufactured compatible connectors, followed by the Neutrik company, which made improvements to the connector, and produced a second-generation design (the X-series) that had only four parts for the cable connector, and eliminated the small screws used in the models of XLR connectors made by Cannon and Switchcraft.
Man, if anyone hasn’t read this yet…about James H Cannon-Cannon Electric and just the Cannon family in general, it’s a very interesting read. The Cannons were a bad ass bunch…especially Martha Hughes Cannon-LOL.
Sooty looks hungryView attachment 325060
not as bad as my Sooty
Sooty makes b wiring seem like cat food
View attachment 325061
Two different power plants maybe.It's funny, this bi-amping bi-wiring thing. I mean where does it end up-stream? Should you have separation of everything up until the DA conversion?
Or a Beatles song.Two different power plants maybe.
Or a Beatles song.
Nowhere Man will doOr a Beatles song.