DD-8 Power Ampliers
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. D o 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 ampli ers) that
produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-
type plug. A polarized plug has two blades w ith one wider than
the other. A grounding-type plug has two blades an d a third
grounding prong. The wide blade or the third prong is prov ided
for your safety. If the provided plug does not t into your out let,
consult an electrician for replacement of the obsole te outlet.
10. Protect the power cord from being walked on or pinched,
particularly at plugs, convenience receptacles, and t he 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, o r
table specified by the manufacturer, or sold with th e
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 li ghtning storms or when unused
for long periods of time.
14. Refer all servicin g to qualied service personnel. Ser vicing 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 a pparatus
has been exposed to rain or moisture, does not op erate
normally, or has been dropped.
15. Use the mains plug to disconnec t the apparatus from the mains.
16. WARNING: TO REDUCE THE RISK OF FIRE O R 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 t he
risk of electric shock.
The exclamation point triangle is used to alert the us er to
important operating or maintenance instruc tions.

IMPORTANT

DD-8 ampliers require Class 2 output wiring.

MAGNETIC FIELD

CAUTION! Do not locate sensitive hig h-gain equipment such
as preamplifiers or tape decks direc tly above or below the unit.
Because this amplifier has a high power density, it has a stro ng
magnetic eld which can induce hum into unshielded devices th at
are located nearby. The eld is strongest just above and below the
unit.
If an equipment rack is used, we recommend locating the
amplier(s) in the bottom of the rack and the preamplier or oth er
sensitive equipment at the top.