Boostaroo Revolution R234 Instructions page 2

• 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. Push lightly on the side thumb tab of 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 amplifier 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 amplifier
for two weeks or more, remove the batteries. Batteries can
leak chemicals that can destroy electronic parts.
OPERATION
You can use the headphone amplifier while you listen to an
audio source such as an Mp3, iPod, CD or DVD player, a
computer, satellite radio, or portable game system. For the
best results, the headphones you use should have an
impedance of about 32 – 300 Ohms. However, Revolution
will drive up to 600 Ohms, but there may be reduced
volume at that level. If you are unsure of your headphones
Ohm rating, refer to the headphones' owner's manual.
1. With the audio source turned off, plug the headphone
1
amplifier's / -inch (3.5-mm) stereo plug into the stereo
8
or mono output jack on the audio source. This will turn
the Revolution on, as indicated by its LED light.
Note: If you connect the headphone booster to a mono
audio source, you will hear sound in both channels.
2. Plug headphones or mini-speakers into one of the two
output jacks on the headphone amplifier.
3. Adjust the audio source's volume control to its lowest
level. Be aware that the Revolution amplifies the
volume of your audio source, and take care to do this
before turning on the audio source so that you do not
harm your hearing.
4. Turn on the audio source.
5. Adjust the audio source's volume control to the desired
listening level.
6. When you finish using your Boostaroo Revolution,
unplug the cable. Then turn off the audio source's
power before disconnecting the headphones.
SPECIFICATIONS
Input:
Input: 3.5mm Stereo Jack
Impedance: 5K Ohms @ 1Khz
Output:
Outputs: Two 3.5mm Stereo Jacks
Impedance: 5.5 Ohms
17.5 mW per channel
22-23dB boost in headphones up to 600 Ohms
THD: < 0.5%
Frequency Response:
20 to 20,000Hz +/- 2 dB (EIAJ CP-307 Method).
Signal to noise ratio -110dBA from clipping
Power Requirements:
3 Volts DC (2, 1.5V AAAA Batteries)
Product Dimensions:
Size 4.3" x .875" x.832"
Unit weight 3 oz, 6 oz with 2 AAAA batteries
Color: Available in High Gloss Black or White Finish
Package Includes:
1-Boostaroo Revolution Hi-Fi Headphone Amplifier & Audio
Splitter
2-(AAAA) Energizer Batteries
1-12" Stereo 3.5mm Male-to-Male Audio Patch Cable
1-Boostaroo Revolution Owner's Manual
Specifications are typical; individual units might vary.
Specifications are subject to change and improvement
without notice.
Model: R234