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ULTRA-DI DI20

Warranty

Terminals marked with this symbol carry 

electrical current of sufficient magnitude 

to constitute risk of electric shock. Use only 

high-quality professional speaker cables with 

¼" TS or twist-locking plugs pre-installed. 

All other installation or modification should be 

performed only by qualified personnel.

This symbol, wherever it appears, 

alerts you to the presence of 

uninsulated dangerous voltage 

inside the enclosure - voltage that may be 

sufficient to constitute a risk of shock.

This symbol, wherever it appears, 

alerts you to important operating 

and maintenance instructions in 

the accompanying literature. Please read 

the manual.

Caution

To reduce the risk of electric shock, 

do not remove the top cover 

(or the rear section). No user serviceable parts 

inside. Refer servicing to qualified personnel.

Caution

To reduce the risk of fire 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 filled with liquids, 

such as vases, shall be placed on the apparatus.

Caution

These service instructions are 

for use by qualified service 

personnel only. To reduce the risk of electric 

shock do not perform any servicing other than 

that contained in the operation instructions. 

Repairs have to be performed by qualified 

service personnel.

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’s instructions.

8. 

Do not install near any heat sources 

such as radiators, heat registers, stoves, 

or other apparatus (including amplifiers) 

that produce heat.