Shure A95U User Guide

Model A95U

User Guide

MODEL A95U LINE MATCHING TRANSFORMER

This reversible transformer matches low- or high-impedance
microphones to high- or low-impedance inputs. The transformer
permits use of very long microphone cables with either low- or
high-impedance microphones. However, when connecting a
high-impedance microphone, limit the cable length between the
microphone and the transformer to 4.6 m (15 ft). The cable from the
transformer to the low-impedance input can be any desired length.

The transformer prevents high-frequency loss, level loss, and pickup
of noise and hum. The A95U comes furnished with a three-pin XLR
connector on the low-impedance end, with a 1/4 in. phone plug and
phone jack adapter on the high-impedance end.

Case

Full magnetic shield, steel with gray enamel finish

Dimensions

19 mm (

2005, Shure Incorporated Printed in U.S.A.

27C1925 (Rev. 4)

3

/4 in.) diameter; 89 mm (31/2 in.) long without adapters

LOW-IMPEDANCE SELECTION

The A95U comes factory preset with the low-impedance end intended
for use with microphones or inputs rated 75 to 300 ohms. For micro­phones or input rated at 19 to 75 ohms, make the following changes.

1. Remove the low-impedance XLR plug by turning the lock screw
counterclockwise and withdrawing the XLR plug 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 XLR plug three turns to twist the leads, then replace
the XLR plug in the case. Tighten the lock screw to secure the
XLR plug in place (turning clockwise).

IMPEDANCES

BLACK

GREEN

GREN/YLW 75–300

GREN/ORN 19–75

BLK/RED HIGH

Ω

Ω

1

2

3

ORANGE

YELLOW

RED

HIGH IMPEDANCELOW IMPEDANCE

SLEEVE

TIP