Shure A95UF User Guide
Model A95UF
User Guide
MODEL A95UF LINE MATCHING TRANSFORMER
The Shure Model A95UF is a reversible line matching transformer that can match
low impedance microphones to high impedance inputs, or match high impedance microphones to low impedance inputs. The A95UF lets you use long runs of cable with
either low impedance or hig h impedance mi crophones. How ever, when co nnecting
the high impedance end of the A95UF to a hig h impedance microp hone, the cable
should be no more than 4.6 m (15 ft.) long. The A95UF p re vents high frequency attenuation, level loss, and pickup of noise or hum.
The A95UF can be configured for two low impedance settings: 19Ω to 75Ω, or 75Ω
to 300Ω. As supplied, the low impedance end is configured for 75Ω to 300Ω.
The A95UF is furnished with a female XLR connector at the low impedance end, and
a standard 1/4-inch phone plug and a phone jack adapter at the high impedance end.
©2005, Shure Incorporated
27D1926 (Rev. 2)
Printed in U.S.A.
LOW IMPEDANCE SELECTION
As supplied, the low impedance end of the A95UF is configured for use with
inputs rated at 75Ω to 300Ω. To reconfigure th e low impe dance en d for input s
rated at 19Ω to 75Ω, refer to the figure below and proceed as follows:
1. Remove the low-impedance plug element by turning the screw
counterclockwise and withdrawing the element from the case.
2. Unsolder the YELLOW lead from pin 3 and insulate the bare wire at
the end of the lead with the insulator from the ORANGE lead.
3. Solder the ORANGE lead to pin 3.
4. Rotate the plug element three turns to twist the leads, and replace
the element in the housing. Rein stall the screw by turning it clockwise.
IMPEDANCE
BLACK
2
1
GREEN
3
ORANGE
GREEN/ORANGE 19-75Ω
GREEN/YELLOW 75-300Ω
BLACK/RED HIGH
SLEEVE
TIP
YELLOW
RED
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