Mcintosh c46 balanced input vs. fully balanced pre


I am considering a mcintosh c46 preamp for my system which includes Esoteric X03SE, Mc501 amps and B&W 802D. I know I can run balanced cables throughout. The C46 has just one "balanced" input and balanced outs. My question is: Is this balanced input / output on the C46 the same as any "fully balanced" preamp ie. the C200 or is there some compromise going on? Much thanks in advance for clarification......Also any comments on the C46 in my system?
epatrowicz
Merely having balanced inputs/outputs is indeed different from having a balanced circuit design (input and output).

Just because a component has balanced inputs/outputs does not necessarily mean that its circuit has been designed that way.

If properly implemented, a balanced circuit design will lead to, among other things, a lower noise floor due to what is called common mode rejection.
McIntosh C46 is not balanced, just a hook up convenience...nice pre though.
Just as I Thought. So "fully balanced" is a significant description of design. "Balanced inputs and outputs" means something different, a convenience. Thank you for the knowledge.....
The inputs and outputs of a preamp can very well be balanced without the rest of the circuit being balanced.

You will still get common mode noise rejection at the input of the balanced connector as long as it's a differential input.

Some components do simply parallel an XLR connector off of an RCA connector. In this case there is no CMRR for the input and it is just a connection convenience.

As far as your particular preamp is concerned, I have no idea. Contact the manufacturer.
So it is possible that the one balanced input is truly balanced through the output Bob?....
My Ashly electronic crossover (pro sound equipment) has an interesting version of balanced output. The output actually has only one active signal(+) pin on the XLR connector. The other signal pin (-) is simply connected to ground, but not directly. There is a resistor of value equal to the output impedance of the active circuit. Common mode noise rejection happens at the input of the receiving equipment. Since both wires in the cable are at the same impedance noise pickup will be the same, and the benefit of balanced interconnections is realized without extra circuitry. A clever idea, and it does work. Any preamp lacking balanced output would be easily modified using this scheme.
So it is possible that the one balanced input is truly balanced through the output Bob?....
Sorry, I'm not following the question.
The output actually has only one active signal(+) pin on the XLR connector. The other signal pin (-) is simply connected to ground, but not directly. There is a resistor of value equal to the output impedance of the active circuit.

Bill Whitlock (Jensen Transformers) would be proud of them. The idea of "balanced" lines has nothing to do with balanced voltages. The success of CMR at the receiving differential input depends on the matching of the impedance of the (+)/(gnd) leg and the (-)/gnd leg. Ashly has taken care of this by adding a matching resistor.