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Extracted text from alto di 4 user manual (Ocr-read)
SAFETY RELATED SYMBOLS
RISK OF ELECTRIC SHOCK
DO NOT OPEN
This symbol, wherever used, alerts you to the pre-
sence of un-insulated and dangerous voltages with-
in the product enclosure. These are voltages that
may be sufficient to constitute the risk of electric
shock or death.
Protective Ground Terminal
AC mains (Alternating Current)
Hazardous Live Terminal
ON:Denotes the product is turned on.
This symbol, wherever used, alerts you to impo-
rtant operating and maintenance instructions.
OFF:Denotes the product is turned off.
Describes precautions that should be observed to
prevent the possibility of death or injury to the user.
Describes precautions that should be observed to
prevent damage to the product.
IMPORTANT SAFETY INSTRUCTIONS
Power Cord and Plug
the recommended fuse type as indicated in this
manual. Do not short-circuit the fuse holder. Before
replacing the fuse, make sure that the product is
OFF and disconnected from the AC outlet.
Before turning the product ON, make sure that it is
connected to Ground. This is to prevent the risk of
Never cut internal or external Ground wires. Likewise,
never remove Ground wiring from the Protective
Always install in accordance with the manufacturer's
To avoid the risk of electric shock and damage, do
not subject this product to any liquid/rain or moisture.
Do not use this product when in close proximity to
Do not install this product near any direct heat source.
Do not block areas of ventilation. Failure to do so
could result in fire.
Keep product away from naked flames.
Read these instructions
Follow all instructions
Keep these instructions. Do not discard.
Heed all warnings.
Only use attachments/accessories specified by the
Do not tamper with the power cord or plug. These are
designed for your safety.
Do not remove Ground connections!
If the plug does not fit your AC outlet seek advice from
a qualified electrician.
Protect the power cord and plug from any physical
stress to avoid risk of electric shock.
Do not place heavy objects on the power cord. This
could cause electric shock or fire.
When required, either blow off dust from the product
or use a dry cloth.
Do not use any solvents such as Benzol or Alcohol.
For safety, keep product clean and free from dust.
Refer all servicing to qualified service personnel only.
Do not perform any servicing other than those instruc-
tions contained within the User's Manual.
To prevent fire and damage to the product, use only
No user serviceable parts inside.
Ensure that the mains source voltage (AC outlet)
matches the voltage rating of the product. Failure
to do so could result in damage to the product and
possibly the user.
Unplug the product before electrical storms occur
and when unused for long periods of time to reduce
the risk of electric shock or fire.
Always use proper ready-made insulated mains
cabling (power cord). Failure to do so could result
in shock/death or fire. If in doubt, seek advice from
a registered electrician.
Do Not Remove Any Covers
Within the product are areas where high voltages
may present. To reduce the risk of electric shock do
not remove any covers unless the AC mains power
cord is removed.
Covers should be removed by qualified service
Disposing of this product should not be
placed in municipal waste and should be
Thanks for choosing LTO DI 4 Direct Box and thanks for choosing one of the results of LTO AUDIO TEAM
job and researches.
For our LTO AUDIO TEAM, music and sound are more than a job...are first of all passion and let us say...our obsession!
We have been designing professional audio products for a long time in cooperation with some of the major brands in
the world in the audio field.
The line presents unparalleled analogue and digital products made by Musicians for Musicians in our R&D LT O
Centr s in Italy, Netherlands, United Kingdom and Taiwan. The core of our digital audio products is a sophisticated DSPe
(Digital sound processor) and a large range of state of the art algorithms which have been developed by our Software
Team for the last 7 years.
Because we are convinced you are the most important member of LTO AUDIO TEAM and the one confirming the quality
of our job, we would like to share with you our work and our dreams, pay attention to your suggestions and your comments.
Following this idea we create our products and we will create the new ones! From our side, we guarantee you and we will
guarantee you also in future the best quality, and the best fruits of our continuous researches and the best prices.
The DI 4 Direct Box has several basic functions: converting a high impedance signal to a low impedance signal; converting
a "hot" instrument or line level (and sometimes even speaker level signal) signal to a microphone level signal suitable for
connection to the Mic Input of a mixing console etc.. And it used to prevents hum and noise pick up due to special trans-
Nothing else to add, but that we would like to thank all the people that made the LTO DI 4 Direct Box a reality
available to our customers, thank our designers and all LTO staff, there to make possible the realization of pro-
ducts containing our idea of music and sound and there to support you, our customers, in the best way, conscious
that you are our best richness.
Thank you very much.
LTO AUDIO TEAM