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Thank you for purchasing this Altec Lansing product. For generations,
Altec Lansing has been first in audio innovation. Today, our line of powered
speakers has received more performance awards than any other brand. In
all kinds of desktop environments, in every price range, Altec Lansing offers
sound of distinction — giving even the most demanding customers the
audio enjoyment they seek. Just listen to this!
Box Contents
• iM4 portable audio system
• Universal power supply with changeable plug set
• Protective carry bag
• User’s guide and quick connect instructions
Placing the IM4 system
Position the iM4 system on a level surface, preferably close to you (within
three feet). The iM4 system can be placed close to video displays such as
TVs and computer monitors without distorting the image.
Making Connections
Warning: Do not insert the speaker system’s universal power supply into a
wall outlet until all connections are made. Also, turn off your MP3 Player
or other portable audio device before connecting it to the iM4 system.
To ensure first-time operation as expected, please carefully follow the
connection sequences described below in the order indicated.
MP3 Players or other portable audio devices can be connected to the iM4
system by plugging the iM4 retractable signal cable into your device’s
“line-out,” “audio-out,” or headphone jack. This is the only input
connection that needs to be made. After this connection is made, insert
the barrel connector from the universal power supply into the connector
marked on the rear of the iM4 system. After this connection is made,
insert the universal power supply into a wall outlet. You can now use
your speakers.
Please note, the iM4 system can also be powered with four AA batteries
(not included). Make sure the batteries are installed as illustrated in the
battery compartments found on the bottom of the iM4 system.
Power
AC Power
After your MP3 Player is connected to the iM4 system, plug the
universal power supply into a wall outlet. The speaker system is now
ready to operate.
DC (Battery) Power
Install four AA batteries (not included) into the battery compartments on
the bottom of the iM4 system (two to each compartment). Make sure the
batteries are installed as illustrated in the battery compartments. After
your MP3 Player is connected to the iM4 system, the speaker system is ready
to operate.
Start Playing
1. Turn on your MP3 Player.
2. Turn on the Altec Lansing iM4 system by sliding the power switch located
on the left side of the unit to the right. An LED will light next to the
button when the power is on.
Note: To avoid hearing a popping sound when you turn on your iM4
system, always turn on your audio source first.
Volume
The slider on the right side of the iM4 system is the master volume control
for the speaker system. Move the slider to the right to increase the volume
or to the left to decrease the volume.
Auxiliary Input
This auxiliary or secondary input is located on the back of the iM4. It allows
you to connect a secondary audio source that has a stereo 3.5mm plug (i.e.,
headphone style plug), including another portable CD or MP3 players.
IM4
Portable Audio System
System Specifications
Altec Lansing’s superior sound comes from our patented technology, which utilizes custom-built, high-fidelity drivers, state-of-the-art equalization circuitry,
and a harmonious mix of the following specifications:
Total Continuous Power: 4 Watts RMS
• Drivers: 2 Watts/channel @ 8 ohms
@ 10% THD+N @ 20 Hz – 20 kHz
2 Channels Loaded
Frequency Response: 60 Hz – 20 kHz
Signal to Noise Ratio
@ 1 kHz input: > 75 dB
Drivers: Four 25 mm full-range
neodymium micro drivers