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RDTE ® RX-154A

4-CHANNEL RECEIVER

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owners manual

TABLE OF CONTENTS

INTRODUCTION ................................................... 1
REAR PANEL CONNECTIONS 1
INSTALLATION 2
FRONT PANEL CONTROLS 3
OPERATION ........................................................... 4
MULTIPLE PLAYBACK APPLICATIONS 6
SPECIFICATION ............................. 7

RDTE

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INTRODUCTION

We would like to take this opportunity to thank you for
purchasing our 4-Channel Receiver. With the high quality
design and workmanship that goes into making this
equipment, you can be assured of its flawless performance
for many years to come.

We have fitted every control and feature you could
conceivably need. Designed for both versatility and ease
of operation, this piece of equipment will add professional
studio flexibility to your Hi'Fi sound center. The per-
formance is exceptional; it will allow you to experience

true high fidelity as never before. Its full and natural
stereophonic reproduction offers you musical entertain-
ment approaching that of live performances. We sincerely
hope you will treasure this professional equipment. In
order to obtain the maximum use out of your unit, please
read the following pages of this Operating Manual
carefully.

Do not attempt to operate the unit until you have made
all the necessary connections.

REAR PANEL CONNECTIONS

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POWER SELECTOR SWITCH

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FUSES

FRONT SPEAKER SYSTEMS BACK SPEAKER SYSTEMS 1-5A

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INSTALLATION

IMPORTANT: Do not apply power to this unit without
first making sure that speakers are connected properly and
all the other necessary connections are made.

AM ANTENNA CONNECTION

No external antenna will generally be required for AM,
since a ferrite loopstick antenna is supplied at the rear of
the receiver. For best reception, extend the loopstick fully
out from the receiver chassis.

If you live in a difficult reception area, the use of an
external wire antenna may be desirable. Connect the
antenna lead to the terminal marked AM on the rear
panel. The wire antenna should be as long as possible, and
oriented for best reception. It must be kept away from
large metal objects, power lines or electrical machinery to
insure reception without extraneous noise.

FM ANTENNA CONNECTION

Owing to the high sensitivity of the FM tuner section
of the receiver, the wire antenna supplied is sufficient
for most locations. Connect this to either FM antenna
terminal marked 300 ohms, and mount horizontally,
for instance by tacking to the shelf on which the
receiver is mounted. In difficult reception areas, the
use of an outdoor antenna may prove necessary. Fol-
low its instructions for proper connection. When using
an external antenna, connect both leads of the antenna
to the two 300 ohm FM antenna terminal posts on
the rear chassis.

SPEAKER CONNECTION

This unit is equipped with terminals for connecting two
sets of speakers. Connect your main pair of speakers to
ther terminals marked FRONT SPEAKERS. Ensure that
your right speaker is connected to the terminal marked
RIGHT, and that the ground (-) terminal on the right
speaker is connected to the terminal marked GND.
Similarly, connect your left speaker between the adjacent
terminals marked LEFT and GND.

Connect a second pair of speakers to BACK SPEAKERS
terminals in the manner described above.

Caution: Ensure that the speaker leads are fastened
securely to the proper terminals, and that there are no
stray strands which may cause shorting between terminals.

PHASING

When all connections have been made, and the unit is
operating, a check on correct speaker phasing should be
made. This is described in a later section.

RECORD PLAYER CONNECTION

The shielded cables from your stereo record player shoudl
be terminated with RCA type phono plugs. To avoid loss
in the high frequencies, the cables should not exceed 10

feet (3 m) in length.

Connect both leads from your record player to the LEFT
and RIGHT PHONO input receptacles on the rear chassis.
If your receord player has a ground cable emerging besides
two input cables, connect this ground cable to the ground
terminal post marked GND on the rear chassis.

AUX CONNECTION

Your receiver has pairs of AUX input receptacles for use
with high level program sources: tape recorder, cassette
recorder, 8-track cartridge player, TV sound or a ceramic
microphone. It should be noted that AUX is used only for
the playback purpose, and for recording see tape recorder
connection below.

When connecting a 4-channel tape recorder, connect four
output cables to the AUX FRONT and BACK input jacks
on the rear of the receiver. For 4-channel 8-track
cartridge, similar procedure is followed. When connecting
a stereophonic equipment, connect the two outputleads
to the AUX FRONT input jacks,

TAPE RECORDER CONNECTION

Terminals are supplied for connecting a 4-channel tape
recorder (which incorporate playback preamplifier). Con-
nect its right and left front and back output cables to the
TAPE IN terminals and connect its right and left front
and back input cables to the TAPE OUT terminals.

POWER SELECTOR SWITCH

Your receiver has 4 amplifier sections with same power
output for 4-channel use. However, when in stereo only 2
amplifiers are required. In order to utilize fully the power
capability of this receiver, ROTEL has incorporated a
specially designed circuit to bridge 2 amplifiers to drive
one channel each when in stereo (2-channel). Not only all
4 amplifiers are put on work all the time, but also the
power per channel will be doubled when in stereo as
compared to 4-channel.

Set the POWER SELECTOR switch to STEREO position
when playing stereo, or to QUAD when playing
4-channel.

Caution: Remove the safety latch from the switch when
using the POWER SELECTOR, but be sure to screw back
the panel on place when not using the switch frequently.
ALWAYS TURN OFF THE UNIT BEFORE USING THE
SWITCH.

AC OUTLET

Your receiver is equipped with an AC Outlet (switched)
to provide power and switching control to whatever
component you may wish to connect to the unit.
However, the total load of equipment connected to the
AC Outlet must not exceed 200 watts.