AUSTRALIAN MONITOR AMIS HA4 User manual

AMISHA4
4 Channel Stereo Headphone Amplifier
Introduction
The Australian Monitor Installation Series HA4 is a high quality, low price 4
channel stereo headphone amplifier. Featuring a stereo 6.35mm jack
input & 4 stereo 6.35mm headphone jack outputs, the AMIS HA4 offers
separate volume controls per channel & a simple layout for ease of
operation. The AMIS HA4 is powered by a supplied 12VDC power supply &
as part of the AMIS Contractor Tools range, the AMIS HA4 is an inexpensive
stereo headphone amplifier that has a multitude of uses in a wide variety
of installations.
Description
Front Panel
•Power LED: This LED indicates that the unit is “on”.
•Volume 1-4: These control the level of the indicated channel
Back Panel
•Stereo Input: This stereo 6.35mm jack accepts a stereo source input
to be fed to the connected headphones.
•Stereo headphone outputs 1-4: these stereo 6.35mm are the
headphone outputs. Note that these outputs are for stereo 6.35mm
jacks only. Connection of mono 6.35mm jacks may cause this unit
serious damage.
•12VDC Power input: This input accepts power from the supplied
12VDC power supply. Note that the tip is Negative.
Specifications
Input impedance: 100K Ohms unbalanced
Maximum Input Level: +14dBV

Maximum Gain: 20 dB per channel
S/N Ratio: >90dB
THD: <.008%
IMD (SMPTE): <.008%
Dimensions: 113mm x 73mm x 40mm