Radio Shack 3-Channel Headphone Volume Booster Owner's Manual

3-Channel Headphone Volume Booster
Your RadioShack 3-Channel Headphone Volume Booster lets you
share a single audio source with three headphones or mini-speakers.
It provides uniform amplification to each output device.
3-Way Audio Splitting — lets up to three listeners share one stereo
audio source.
Flexible Output Compatibility — lets you use either headphones or
mini-speakers.
Flexible Input Compatibility — lets you connect CD players, comput-
ers, police scanners, and video games.
Battery Conservation — the booster uses very little battery power
when no signals are passing through it.
PREPARATION
Installing Batteries
Your headphone booster uses two AA batteries (not supplied) for pow-
er. For the best performance and longest life, we recommend
RadioShack alkaline batteries.
Cautions:
• Use only fresh batteries of the required size and recommended
type.
• Do not mix old and new batteries, different types of batteries
(standard, alkaline, or rechargeable), or rechargeable batteries of
different capacities.
1. Squeeze and pull back the battery compartment cover to remove
it.
2. Place the batteries in the compartment as indicated by the polarity
symbols (+ and –) marked inside.
3. Replace the cover.
When the headphone booster stops operating properly, replace the
batteries.
Warning: Dispose of old batteries promptly and properly. Do not burn
or bury them.
Caution: If you do not plan to use the headphone booster for two
weeks or more, remove the batteries. Batteries can leak chemicals
that can destroy electronic parts.
OWNER'S MANUAL — Please read before using this equipment.
OPERATION
You can use the headphone booster while you listen to an audio
source such as a CD player, a computer with sound output, or a scan-
ner (radio). For the best results, the headphones you use should have
an impedance of about 16 ohms. If you are unsure, refer to the head-
phones' owner's manual.
1. With the audio source turned off, plug the headphone booster's
1
/ -inch (3.5-mm) stereo plug into the stereo or mono output jack
8
on the audio source.
Note: If you connect the headphone booster to a mono audio
source, you hear sound only on the left channel.
2. Plug up to three sets of headphones or mini-speakers into the out-
put jacks on the headphone booster.
3. Adjust the audio source's volume control to its lowest level.
4. Turn on the audio source, then slide the headphone booster's
power switch toward the jacks.
5. Adjust the audio source's volume control to the desired listening
level.
6. When you finish using your booster, slide its power switch in the
opposite direction. Then turn off the audio source's power before
disconnecting the headphones and the audio source.
Listening Safely
To protect your hearing, follow these guidelines when you use head-
phones.
• Set the volume to the lowest setting before you begin listening.
After you begin listening, adjust the volume to a comfortable level.
• Do not listen at extremely high volume levels. Extended high-vol-
ume listening can lead to permanent hearing loss.
• Once you set the volume, do not increase it. Over time, your ears
adapt to the volume level, so a volume level that does not cause
discomfort might still damage your hearing.
©
2001 RadioShack Corporation.
All Rights Reserved.
RadioShack and RadioShack.com are trademarks used by RadioShack Corporation.