Rotel RA 1212 OM

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Stereo Integrated Amplifier

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INTRODUCTION

We would like to take this opportunity to
congratulate you on your purchase of our
audio component. With the latest tech-
nology and workmanship that goes into
making this equipment, you can be assured
of its high quality performance for many
years to come.

We have fitted a comprehensive range of
controls and features for your convenience.
Designed for both versatility and ease of
operation, this piece of equipment will add

professional studio flexibility to your Hi-Fi
sound center. The performance is exception-
al, allowing you to experience true high
fidelity. Its full and natural sound reproduc-
tion offers you musical entertainment ap-
proaching that of live performances. We
sincerely hope you will treasure this profes-
sional type component. In order to obtain
the maximum use out of your equipment,
we urge you to read the following pages of
this Owner's Manual carefully.

WARNING - TO PREVENT FIRE 0R SHOCK HAZARD, DO NOT EXPOSE
THIS APPLIANCE TD RAIN OR MOISTURE.

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CONTENTS

P3991 2/3 System Connections

Before Enjoyment

Speaker Connections

Turntable

Tuner

AUXes

Tape Recorder

Power Supply Line
Features 8: Function Controls
Terminals 8| Switches
Operation

Turntable

Broadcast Reception

Tape Recorder

Microphone

Hum and Noise

Exclusive Note for UK.
Block Diagram

Protection
Specifications: RA«1212

Page 2

System Connections

BEFORE ENJOYMENT

For safety sake keep in, mind the following,

' cautions:

1. Do not connect the unit to the AC
power line without speakers connected be-
forehand.
2. Make sure also that the power switch is
left off and the master volume control is set
at minimum before plugging in the power
cord to a wall outlet.
3. Speakers
a) impedance - Be sure to use speakers
rated at 8 ohms or higher up to 16 ohms.
In the event your speakers are rated at 4
ohms or lower than desired 8 ohms, you
may operate with one pair of such type
of speakers at a time but never two pairs
of speaker system simultaneously. This
measure is to prevent any severe over-
load and distortions from happening due
basically to too low impedance to draw
excessively high current. When you are
uncertain on your speakers rating values,
consult with the dealer or store you
purchased.
Connection - Before connecting speaker
leads to the terminals on appliance make
sure also no loose stray strands of wire is
left in order to prevent any shorting
between speaker leads or terminals to
main chassis. This shorting malfunction
may be common cause of blown fuses or
overload.
4. Always use the fuse, if necessary to
replace, of same type and rating as the one
installed on the unit. Replacing fuse incor-
rectly with higher rating will defeat the
purpose of protection and may cause severe
damage instead.

5. Furnished Convenience AC Outlet

a) Do not insert or remove plug from any
convenience AC outlet supplied on the
appliance while the appliance is con-
nected to power. Also do not insert
foreign object, other than a proper plug,
into the convenience AC outlet.

b) Do not connect other appliance(s) to
convenience AC outlet if its/their total
power consumption exceeds maximum
rated watts labeled next to the outlet.

11

LOCATING THE UNIT

Although the unit normally does not deve-
lope high heat, it should be placed in such a
way that its ventilation system will not be
impeded. Place the unit on a hard surface -
any conveniently located shelf or table
where not affected by heat or moisture.
Leave at least 5 cm (2 inches) clearance on
each side and in the rear of the unit, and
about 10 cm (4 inches) above the unit.
Never directly place an object on the top of
the unit.

SPEAKERS PLACEMENT

1. MAIN SPEAKERS -- Refferred to a pair
of speakers connected to theSPEAKER 1
terminals on the units rear panel. Place the
main speakers against a wall or on a shelf so
that they face your selected listening posi-
tion and are equal distance from you. For
optimum stereo effect, they should be 3 to
4 meters (10 to 15 feet) apart and, if
possible, at about ear level height. You may
determine best locations to suit your per
sonal tastes and listening conditions.

2. REMOTE SPEAKERS - If you wish to
enjoy stereo sound in another room, you
can connect another pair of speakers to the
SPEAKER 2 terminals. Though you
may require long cables between the unit
and the remote speakers, make sure they are
not longer than 15 to 20 meters (50 to 80
feet) in length and that they are of heavy
duty shielded type in order to prevent loss
of volume level. Follow the procedure
described in the item 1 above for placing the
remote speakers.

SPEAKER CONNECTION

As shown in Fig. l, the speaker terminals
are quick screw insert type, and are arranged
into two boards, one for SPEAKER 1
(main) and the other for SPEAKER 2
(remote). Unscrew each terminal, slip
the bare wire at the free end of the speaker
lead into the vertical hole of the terminal,
and screw back to grip the bare wire intact.
(Note: if necessary, after stripping each end
of speaker leads to abtain a bare wire, twist
the bare strands together so it will be easy

to insert and also prevent shorting among
stray strands). Make sure the positive (+)
lead of each speaker is connected to the (+)
terminal and the ground (-) lead to the (-)
terminal, and right to RIGHT and left to
LEFT.

TURNTABLE CONNECTION

If your turntable comes with RCA-type
plugs on output cables, connect them cor-
rectly to corresponding RIGHT and LEFT
jacks of PHONO inputs. If there is ground
(earth) cable emerging from the turntable
besides the output cables, connect it to the
ground screw terminal marked GND or "g.
If your turntable comes with a OIN plug on
output cable, simply plug in to the DIN
socket marked PHONO 1.

NOTE: To avoid loss of high frequency
response due to excessively long output
cables, shielded cables not exceeding 10 feet
(3 meters) in length should be used to
connect your turntable. Usually, cables sup-
plied with your turntable are sufficient.
Make sure your turntable comes with a
regular magnetic cartridge.

TUNER CONNECTION

Connect the outputs of your stereo tuner to
the LEFT and RIGHT TUNER input ter-
minals on the rear panel with shielded
cables. If you have another tuner, connect it
to AUX terminals.

AUX CONNECTION

Two sets of AUX input terminals are pro-
vided for connection of equipment such as
tape deck without recording facility (e.g.,
8-track player deck). Connect the output
cables of such equipment to input terminals
in the same manner as the tuner.

TAPE RECORDER CONNECTION

A facility for tape recorder is referred to as
TAPE MONITOR and is used in conjunction
with the monitor control on the front panel.
It is also used when your tape recorder has a
separate playback head (i.e., tape recorder
normally equipped with three heads).

Your tape recorder can be a reel-to-reel
deck, a cassette recorder deck or a 8-track
cartridge recorder deck.

If the tape recorder comes with RCA-type

STEREO
RECORD PALYER

O

STEREO

. l

RECORD PLAYER

PHONO-l PHONO'Z TUNER AUX-l AUX~2

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STEREO

TAPE MONITOR-1

IN

OUT REC/ PB REC/ PB lN OUT

8-TRACK PLAYER

""L O O I O

STEREO TUNER

Fig. 1

TAPE MONITOR'Z

SPEAKER-I
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SPEAKER-2
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1

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plugs, connect input cables to corresponding
TAPE MONITOR jacks marked OUT and
output cables to the jacks marked IN. Input
jacks IN are for playing back prerecorded
tapes and output jacks OUT are for record-
ing programs such as broadcasts, records and
live sounds.

If the tape recorder comes with DIN plug,
simply connect it to the DIN socket marked
REC/PB at TAPE MONITOR 1.

POWER SUPPLY CONNECTION

For power the unit requires the normal
house electrical current (AC). Simply plug
the unit to a wall outlet.

If in any doubt about connecting to the
power source, consult a qualified electrician.
If you live in UK. and your unit comes with
3-core cord without a plug, be sure to read
the page 7 of this manual before connect-
ing to power.

SPEAKER-2

LEFT RIGHT

06' O 0000
STEREO TAPE RECORDER

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STEREO TAPE RECORDER LEFT SPEAKER-1 RIGHT