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Creating a high impedance input may not solve the transformer issue unless the only issue is impedance matching. If the inputs are balamced then a transformer is still required to convert from balanced to unbalanced in which case an opamp on the input is ideal and can be uswed both as a transformerless input and an impedance matcher. if all you require is a simple impedance transformation then what you are thinking about will work.

[QUOTE="Captain Kilowatt, post: 407538, member: 39"] Creating a high impedance input may not solve the transformer issue unless the only issue is impedance matching. If the inputs are balamced then a transformer is still required to convert from balanced to unbalanced in which case an opamp on the input is ideal and can be uswed both as a transformerless input and an impedance matcher. if all you require is a simple impedance transformation then what you are thinking about will work. [/QUOTE]

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