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DD-8 Power Ampliers
Operation Manual2
Important Safety InStructIonS
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 a 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 ampliers) that
produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-
type plug. A polarized plug has two blades with one wider than
the other. A grounding-type plug has two blades and a third
grounding prong. The wide blade or the third prong is provided
for your safety. If the provided plug does not t into your outlet,
consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched,
particularly at plugs, convenience receptacles, and the point
where they exit from the apparatus.
11. Only use attachments/accessories specified by the
manufacturer.
12. Use only with a cart, stand, tripod, bracket, or
table specified by the manufacturer, or sold with the
apparatus. When a cart is used, use caution when
moving the cart/apparatus combination to avoid injury
from tip-over.
13. Unplug this apparatus during lightning storms or when unused
for long periods of time.
14. Refer all servicing to qualied service personnel. Servicing is
required when the apparatus has been damaged in any way,
such as power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate
normally, or has been dropped.
15. Use the mains plug to disconnect the apparatus from the mains.
16. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.
17. DO NOT EXPOSE THIS EQUIPMENT TO DRIPPING OR
SPLASHING AND ENSURE THAT NO OBJECTS FILLED
WITH LIQUIDS, SUCH AS VASES, ARE PLACED ON THE
EQUIPMENT.
18. THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN
READILY OPERABLE.
TO PREVENT ELECTRIC SHOCK DO NOT REMOVE TOP OR
BOTTOM COVERS. NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
TO COMPLETELY DISCONNECT THIS EQUIPMENT FROM
THE AC MAINS, DISCONNECT THE POWER SUPPLY CORD
PLUG FROM THE AC RECEPTACLE. THE MAINS PLUG OF
THE POWER SUPPLY CORD SHALL REMAIN READILY
OPERABLE.
WATCH FOR THESE SYMBOLS:
The lightning bolt triangle is used to alert the user to the
risk of electric shock.
The exclamation point triangle is used to alert the user to
important operating or maintenance instructions.
IMPORTANT
DD-8 ampliers require Class 2 output wiring.
MAGNETIC FIELD
CAUTION! Do not locate sensitive high-gain equipment such
as preamplifiers or tape decks directly above or below the unit.
Because this amplifier has a high power density, it has a strong
magnetic eld which can induce hum into unshielded devices that
are located nearby. The eld is strongest just above and below the
unit.
If an equipment rack is used, we recommend locating the
amplier(s) in the bottom of the rack and the preamplier or other
sensitive equipment at the top.