The Shure A85F is a low- to high-impedance microphone-matching transformer that provides 24 dB of signal increase gain. It has balanced female XLR and unbalanced high impedance male 1/4'' phone plug connectors, and may be used in reverse. The A85F is typically used to connect a balanced low-impedance microphone output to an unbalanced high impedance input on a mixer or recorder.
NOTE: Not for connection to the balanced line-level output of a mixer.
A85F & A95UF - maximum signal levels?
The A85F and the A95UF do contain transformers that convert an unbalanced, high impedance sign...
A85F Actual Impedance
Primary is 300 ohms. Secondary is 40,000 ohms. Gain is 21 dB.
PGA58 Impedance - Low or High?
Both are low impedance. To obtain a high impedance PGA58, add the A85F transformer at th...
Low volume from SM58 into a high impedance input
The input on your Peavey likely requires a high impedance microphone. Is the input conne...
XLR to 1/4'' transformer
Our XLR female to 1/4" male transformers are model A95UF and A85F. The transformers ...
SM57 into 1/4" or 1/8" input
If you need a transformer to slightly boost the signal so that it is compatible with the input...
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