3 ULTRA-DI DI20
Warranty
Terminals marked with this symbol carry
electrical current of sucient magnitude
to constitute risk of electric shock. Use only
high-quality professional speaker cables with
¼" TS or twist-locking plugs pre-installed.
Allother installation or modication should be
performed only by qualiedpersonnel.
This symbol, wherever it appears,
alertsyou to the presence of
uninsulated dangerous voltage
inside the enclosure-voltage that may be
sucient to constitute a risk ofshock.
This symbol, wherever it appears,
alertsyou to important operating
and maintenance instructions in
the accompanying literature. Please read
themanual.
Caution
To reduce the risk of electric shock,
donot remove the top cover
(orthe rear section). No user serviceable parts
inside. Refer servicing to qualied personnel.
To reduce the risk of re or
electric shock, do not expose this
appliance to rain and moisture. The apparatus
shall not be exposed to dripping or splashing
liquids and no objects lled with liquids,
suchas vases, shall be placed on the apparatus.
Caution
These service instructions are
for use by qualied service
personnel only. Toreduce the risk of electric
shock do not perform any servicing other than
that contained in the operation instructions.
Repairs have to be performed by qualied
servicepersonnel.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation
openings. Install in accordance with the
manufacturer’sinstructions.
8. Do not install near any heat sources
such as radiators, heat registers, stoves,
orother apparatus (including ampliers)
thatproduceheat.