Shure A15PRS Switchable XLR Phase Reverser

An often overloooked tool for studios and live sound, the Shure A15PRS reverses the phase (polarity) of a balanced audio signal. An in-line switch permits instant selection of either normal or reversed polarity for comparison purposes.

Typical use applications include:
• Switching polarity to properly use reverse side of KSM313 Ribbon (and other ribbons)
• Correcting polarity reversal caused by a wiring error in a microphone cable;
• Connecting an unbalanced high impedance microphone having the "hot" signal on pin 3 to the input of a mixer that requires the "hot" signal on pin 2
• Reducing phase cancellation/comb filtering between two signals that are of opposite polarity.

Specs:

Impedance
• Input: any impedance, any level
• Output: any impedance, any level

Case
• Full magnetic shield, steel with gray enamel finish

Dimensions
• 19 mm (3/4 in.) diameter
• 141 mm (5 17/32 in.) long