AUSTRALIAN MONITOR AMISDI1 Operating and installation instructions

Australian Monitor
1 Clyde Street, Silverwater NSW 2128 Australia
[phone]
www.australianmonitor.com.au
SERVICE INFORMATION
AMISDI1
PASSIVE DI BOX
CONTENTS:
OPERATION MANUAL
SCHEMATIC DIAGRAM

AMISDI1
Passive Direct Injection Box
Introduction
The Australian Monitor Installation Series DI1 is a passive direct injection
box that features a balanced XLR output, a 6.35 mm TRS through output, 3
stage pad offering up to 40dB of attenuation & a ground lift switch for
hum elimination. As part of the AMIS Contractor Tools range, the AMIS DI1
is an inexpensive passive DI that is integral to a wide variety of installations.
Description
•6.35mm TRS Jack Input: This will accept balanced or unbalanced
signals from a program source or instrument.
•6.35mm TRS Jack Thru Output: This balanced output allows for a
direct output link to an instrument amplifier.
•3 Stage input Pad: This 3 stage switch allows 0dB, 20dB or 40dB of
input attenuation so differing sources can accommodated.
•GND Lift Switch: When this switch is in “ground” position pin1 of both
the input & the output are connected. When this switch is in “lift”
position these grounds are separated. This switch is used to
eliminate hum that may be present.
•Balanced XLR Output: This balanced XLR output is for connection to
a mixing console, signal processor etc.
Specifications
Attenuation Switch: 0dB, 20dB or 40dB selectable
Frequency Response: 15Hz-30kHz
Dimensions: 74mm x 45mm x 130mm
Weight: 650g

1
2
3
4
A
B
C
D
4
3
2
1
D
C
B
A
Title
Number
Revision
Size
A4
Date:
22-Jun-2007
Sheet of
File:
Drawn By:
INPUT
R1
47K
R3
5K6
R2
470E
GND/LIFT SWITCH
2
3
1
OUTPUT
PAD SWITCH
DI1-02
SIL / 16 / 0443
00
AMEND
A
THRU
0dB
-20dB
-40dB
DERICK
1
1