Now-a-days many of the mid to high end cd players / blu ray players come with a balanced xlr output and also with the associated RCA output. In the RCA section one of the cold point is directly grounded and there by some loss of the signal could result, Most amplifiers (like mine) have only a unbalanced RCA input to drive. So how do one connect the balanced output to unbalanced input?
- get a balanced to unbalanced audio isolation transformer - this is one of the best option, but again confusion on what should be the turns ratio, primary and secondary impedance, frequency response, noise etc. Could not find much information about how far the characteristic impedance need matching. Jensen transformers are as expensive as 400+$. Cheap Chinese audio transformers are available for as low as 1$ Lol
- get a balanced to unbalanced active converter - will have its own distortion because of quality of power supply, components and opamp used and will not be as good as the transformer option.
So what options do our FM use in such a situation?
- get a balanced to unbalanced audio isolation transformer - this is one of the best option, but again confusion on what should be the turns ratio, primary and secondary impedance, frequency response, noise etc. Could not find much information about how far the characteristic impedance need matching. Jensen transformers are as expensive as 400+$. Cheap Chinese audio transformers are available for as low as 1$ Lol
- get a balanced to unbalanced active converter - will have its own distortion because of quality of power supply, components and opamp used and will not be as good as the transformer option.
So what options do our FM use in such a situation?