Boostaroo t613-enc User Guide

OWNER’S MANUAL — Please read before using this equipment.

Listening Safely: Follow all instructions.

To protect your hearing, follow these guidelines when you use headphones.

  •  The Boostaroo provides up to 2 times the power or volume to ordinary head-

phones.  Use caution to protect your hearing.

  •  Set the volume of your player or volume control headphones 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-volume listen-

ing 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.

Traffic Safety

Do not use headphones when operating a motor vehicle or riding a bicycle  

in or near traffic. Doing so can create a traffic hazard and could be illegal in  

some areas.

  If you use headphones while riding a bicycle, be very careful. Do not listen to a 

continuous broadcast.

  Even though some headphones let you hear some outside sounds when  

listening at normal volume levels, they still can present a traffic hazard.

DO NOT use this apparatus near water.

Water will short circuit the unit and cause permanent damage to the unit that is not 

covered by the warranty,  

Keep the Boostaroo dry; if it gets wet, wipe it dry immediately. Use and store the 

headphone booster only in normal temperature environments. Handle the headphone 

amplifier carefully; do not drop it. Keep the headphone amplifier away from dust and 

dirt, and wipe it with a damp cloth occasionally to keep it looking new.

The Boostaroo comes with a 12-month warranty against manufacturing defects and 

failures from date of purchase. For further warranty and product information go to 

http://www.upbeataudio.com/warranty.html

Modifying or tampering with the Boostaroo’s internal components can cause a malfunc-

tion and will invalidate its warranty. If your headphone amplifier is not performing as it 

should, contact us at http://www.upbeataudio.com or call UpBeat Audio, Inc. at 1-616-

837-9500 in the USA.

Your Boostaroo® 3-Channel Headphone Amplifier lets you share a single audio source 

with three headphones or mini-speakers. It provides uniform amplification and doubles 

the volume from the player 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, computers, PDA's, 

MP3's, scanners, and video games. If it uses a headphone, it can use a Boostaroo.

LED Light — indicates when the unit is turned on.

Your headphone booster uses two AA batteries (not supplied) for power. For the best 

performance and longest life, we recommend 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.

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 scanner (radio). 

For the best results, the headphones 

you use should have an impedance 

of about 32 ohms or under. If you 

are unsure, refer to the headphones’ 

owner’s manual.

1. With the audio source turned off, 

plug the headphone booster’s 1/8 

-inch (3.5-mm) stereo plug into the 

stereo or mono output jack 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 output 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.

Frequency Response

(EIAJCP-307 Method)  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  20 to 20,000 Hz ± 2dB

Output (at 3VDC into)

16 ohm headphones   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  40mW per channel

32 ohm headphones   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  30mW per channel

Power Requirements  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  3V DC (two AA batteries)

Dimensions (HWD)   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  1 ½ x 4 ½  x 11/8 in

 .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  (38 x 114 x 28 mm)

Weight (with batteries)   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .   6 oz

 .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  (170g)

Specifications are typical; individual units might vary. Specifications are subject to 

change and improvement without notice.

T613

AO0139AAA1

02A03 Manufactured and Printed in China