ZT Amplifiers Junior LBJ1 - Manual (Page 5)

A Message From ZT
The Lunchbox Junior Amplifier is the ultimate in portability, versatility, and functionality. A 5 lb. package
with astonishing output, the Junior offers up a wide range of great tone, from warm and clean to flat
out distortion, while sporting an auxiliary input, headphone output, regulated Pedal Power and 12V
operation. It’s the amplifier you’ll want to take everywhere and can’t afford not to have. We thank you
for buying a Lunchbox Junior Amplifier, and welcome you to a new way of thinking about amps.
ZT Amplifiers has become the world leader in small amp technology through products that push the
boundaries of what you can expect from a musical instrument amplifier. We believe that a simple,
powerful, great-sounding amp helps to unleash the creative spirit in every musician. Our team of
experienced audio scientists and passionate musicians strive to blend technological innovation with
real musical value. The results, we think, are seriously fun!
Part of the success of ZT comes from taking our customers’ opinions seriously. If you have a question,
comment, concern, compliment, or criticism then we want to know about it. Check out our website,
send us an email, or give us a call and let us know what you think.
Technical Specifications
Input Impedance: >1MΩ
Speaker: 5 inch (130 mm)
Weight: 5 lbs. (2.3 kg)
SPL: >117dB at 1 meter
Total Output Power: 35 watts RMS 80 watts Peak
Voltage: 115V / 230V Selectable
Controls: Top Panel: Gain, Tone, Volume Rear Panel: Internal Speaker Switch
Troubleshooting
I n talking to our customers, we’ve found that most issues can be resolved with a few simple checks. If
you’re having a problem with your amplifier, try running through the following steps.
Amplifier doesn’t power on:
• Check that the power cable is plugged
• Try using an electrical outlet in another room
• Check that the fuse hasn’t blown
No sound from the speaker:
• Check that the speaker switch on the back is set to “On”
• Check that the instrument cable is not damaged or broken
Noisy signal from the amplifier:
• Check that your electrical outlet is grounded
• Try using an electrical outlet in another room
• Keep the GAIN control as high as possible to reduce noise, turn down the VOLUME control to
compensate
If you are still experiencing problems with your ZT Amplifiers product, please contact us at
[email protected].
Service
For service within the United States please contact ZT Amplifiers at [email protected] for all
service and repair questions. Please include a description of the problem and the serial number of your
product. Outside the USA, consumers should check www.ztamplifiers.com/shop/international.html to
locate the distributor in your territory.