Luxman R-1070 User manual

Thank ybu for purchasing one of our quality
products, the LUXMAN R-l070. With natural care, it
will give you many years of outstanding peiformance
and personal delight. Please read this Owner's Manual
carefully before operating the unit, which gives detailed
descriptions and operating procedures for the elec-
tronic and mechanical components of the R-1070.
Again, thank you for your selection, and may "good
listening" be your daily pleasure.
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SWITCHES & CONTROLS
1. FM lF Bandwidth Selector Switch
This switch is provided to realize either the low distortion
characteristic which aims to improve sonic quality, or the high
selectivity characteristic which aims to ensure clear reception.
The switch is of an alternate push-on, push-off type. ln the
"protruded" position, the lF bandwidth is "WlDE", and the
selectivity at t400kHz becomes 30dB to realize low distortjon.
When it is depressed, the bandwidth is "NARROW" to provide
90dB selectivity at 1400kH2, which is effective to eliminate
disturbance by an adjacent station.
2. FM MUTING SWITCH
Annoying interstation noise which is possible when the exact
tuning point is not obtained can be eliminated by this switch in
the case of FM reception. Keep this switch unpressed to remove
interstation noises or other impracticably weak signals. Such
FM signals as can be received in the'lnormal" position can be
practised for stereo FM reception. lt is recommended to set this
switch always in the "protruded" position except when weak
signals are received.
3. TAPE MONITOR SWITCH
When this switch is pressed in, tape playback is possible
either from the DECK-1 Monitor terminal or DECK-2/TAPE
CONNECTOR. ln the case of 3-head tape-recorder which
has a playback head simultaneous playback monitoring is
possible while recording. ln this case this receiver receives
playback signals from either of DECK-1 or DECK-2 Monitor
Terminals or Tape Connector while feeding recording signals to
DECK-1, DECK-2 Rec. Out Terminals or Tape Connector. For
tape playback the Tape Selector Switch (4) has to be set at the
corresponding pgsition to which the tape recorder is connected.
Caution: Only tape playback is possible if this switch is pressed
in, and therefore except for tape playback this switch should be
kept released, i.e., unpressed.
4. TAPE SELECTOR SWITCH
This allows to select tape playback terminals. When this is
kept unpressed at the protruded position tape playback is feasible
from the DECK-l Monitor Terminal, while when pressed in,
the DECK-2 Monitor Terminal and Tape Connector are simul-
taneously put into function. As these 2 are coupled inside and
affect each other, connection of 2 tape recorders to DECK-2
Monitor Terminal and Tape Connector should be avoided for
normal playback.
5. TAPE DUBBING SWITCH
The dubbing switch is provided with 3 positions; at the center
"source" position such program source as is selected by the
lnput Selector Switch is available for playback.
When set at the "dub 1 Io 2" position the output of tape
recorder i is fed to the input of tape recorder 2 for dubbing
(reprint) , while the "dub 2 to 1" position offers tape dubbing
from "DECK-2" Io "DECK-1". As this Dubbing Switch is inde-
pendent of the signal path you can enjoy playback of other
program sources even during tape dubbing.

6. MODE SELECTOR SWITCH 7. DOLBY* FM SWITCH
5. TAPE DUBBING SWITCH 8. SUBSONIC FILTER
4. TAPE SELECTOR SWITCH 9. HIGH CUT FILTER
3. TAPE MONITOR SWITCH 10. LOUDNESS SWITCH
2. FM MUTING SWITCH I1. SELECTOR SWITCH FOR PEAK
1. FM IF INDICATOR
SENSITIVITY
I3. AC POWEH- SWITCH
12. STAND.BY LAMP
14. DIAL SCALE
BANDWI DTH
SELECTO R
15. STEREO
INDICATOR 18. PEAK INDICATOR
25. HEADPHONE JACK
19. INPUT SELECTOR SWITCH 24. SPEAKER SELECTOR SWITCH
16. SIGNAL STRENGTH IVIETEB VOLUIVF CONTBOL (Balance)
20. BASS CONTROL 22. TUNING
FM FINE TUNING METER TREBLE CONTFOL
6. MODE SELECTOR SWITCH
This allows to select sound reproduction modes such as
Stereophonic and Monaural. ln the center position, normal
stereophonic playback mode is ensured. For further details refer
to the "Mode Selection".
7 DOLBY" FM SWITCH
When this switch is pressed in, Dolby FM broadcasting can be
received. Note that this is an additional feature to be made
available only when the Dolby Printed Circuit Board is inserted
into the chassis which is on optional sale. Therefor, without the
board. this switch does not work, or it shuts off the FM output,
when it is depressed.
B SUBSONIC FILTER
This switch allows to reduce the amount of ultra low frequen-
cy range below 30Hz at the rate of -6d8. See the details in
the "Operation of Subsonic Filter".
9. HIGH CUT FILTER
With this filter switch you can cut off the high frequency
range above TKHz at the rate of -6dB/oct. See the details in
the "Operation of High Cut Filter".
10. LOUDNESS SWITCH
When pressed in this switch, Loudness control starts to
function. This may be useful when you listen to music at low
volume level. Refer to the details in the "Operation of
Loudness".
ll.SELECTOR SWITCH FOR PEAK INDICATOR
SENSITIVITY
This is useful to activate the peak indicators at the low
output level. See further details in the "Peak lndicator".
12. STAND-BY LAMP
When the AC Power is switched on, this lamp starts to blink
and will go off in about a few seconds, which shows that the
entire circuitry is in perfect operational condition. This lamp is
coupled with the time-delay muting circuit (the protection
circuit as well) and if abnormal DC drift is sensed, the lamp
starts to blink again. When the relay circuit is turned off, no
output is available at the speaker terminal. But wher: the blink-
ing lasts over one minute, plug out the AC power cord from the
power supply socket and consult with your dealer.
13. AC POWER SWITCH
Repetition of pressing this knob ensures alternate switch-on
and -off.
14. DIAL SCALE
Turn the tuning knob according to the frequencies marked
on this dial and the desired station can be received. Receivable
frequency range for FM is from 88MHz to 1OBMHz, while for
AM from 525KHz to 1605KH2. When a stereo FM is being
received the "Stereo" indicator lights up.
15. STEREO INDICATOR
When the lnput Selector Switch is set to the "FM" position
this Stereo lndicator lights up in case the FM stereo signals
are being received, while it does not function against the mono
signal. Further when mono FM on reception changes into
stereo this lights up automatically to indicate stereo reception.
On the contrary if receiving signals change from stereo to mono
this indicator goes off. ln case mono playback of stereo signals
is desired, set the Mode Selector Switch to the "mono" position.
DOLBY is the Trademark of Dolby Laboratories, lnc

16. SIGNAL STRENGTH METER
The exact tuning point can be obtained when the needle of
this meter shows its maximum swing. The movement of the
needle depends on the strength of the receiving signal. Even if
the needle swings to the extreme right end of the meter scale
it does not impair the meter. For perfect reception of stereo
FIV it is recommended to have the needle swung above "4" on
the meter calibration. ln case of FM reception sr-lch signals as
cannot be cut off 'with the FM Muting Switch can be utilized
as stereo playback.
17. FM FINE TUNING METER
When no FM signal is received this pointer rests in the
vicinity of the center position. When the Tuning Knob is turned
the needle of the Fine Tuning lvleter starts to swing out of the
center, and as the accurate tuning point is getting closer the
needle begins to come back to the center. Thus the exact tuning
point can be obtained with the needle at the dead center
position. This meter is exclusively effective on FM, and in case
of AM reception it does not move from its center point.
18. PEAK INDICATOR
An instantaneous peak level of output power can be read on
this LED indicator. The sensitivity of this indicator is inter-
changeable by the Selector Switch for Peak lndicator Sensitivity.
0dB point is equivalent to 75W with normal condition, while
when the Selector Switch is pressed in, it isequivalent to 4.7W.
Refer to the details in the "Peak lndicator". {
19 INPUT SELECTOR SWITCH
This switch permits proper selection of desired program
sources. You may set either of the positions provided (AM, FM,
PHONO-1, PHONO-2, AUX).
20. BASS CONTROL
This is a level control of bass range..A clockwise turn of the
control boosts the bass response, and a counter-cloq,kwise turn
decreases and finally cuts the bass. This yields a flat frequency
response when set at the center rotation angle with click-stop.
21 REBLE CONTRO L
A clockwise turn of this knob boosts the treble response,
while counter-clockwise turn decreases the treble level' This
control is of the same construction as that of the Bass Tone
Control.
22. TUNING KNOB
Use this knob to tune in your desired station. When the
desired program is received, make accurate tuning slowly
so that the pointer of Signal Strength Meter shows the
maximum swing and that that of the Fine Tuning Meter comes
to its center position. For AM reception the center tuning
meter does not operate.
23. VOLUME CONTROL (BALANCE)
A clockwise turn of this control increases volume, while a
counter-clockwise turn decreases and finally cuts out volume.
Time muting circuits are designed to delay operation of the
amplifier. And if sound volume is set at remarkably increased
level before switching on, loud sound comes out suddenly.
Therefore sound volume should be preset at a reduced level
before operation. When sound is reproduced from speakers,
adjust sound volume at an appropriate level. This knob is of
dual concentric structure and the inner part permits control of
the volume, while the outer part controls the balance of the
riqht and the left channels. See the further details in the
"Control of Volume Balance".
24. SPEAKER SELECTOR SWITCH
This tuner-amplifier offers convenience to use 2 pairs of loud-
speakers. You can choose independent or simultaneous driving
of up to 2 systems as per the indication on the panel. When
the knob is set at the "A" position the "A" speaker terminal
starts to function, and likewise in the "A + B" position both
"A" and "B" speaker terminals operate.
Note that the impedance of each system should exceed
8 ohms at the time of simultaneous driving of 2 pairs of loud-
spea kers.
25 HEADPHONE JACK
This is provided for private listening by stereo headphone.
Output signals are always available irrespective of the position
of the Speaker Selector Switch. For use of headphone, however,
it is recommended to set the Speaker Switch to the "off"
position.
26. SPEAKER TERMINALS
Speaker systems are to be connected to these terminals.
There are two independent term inals; namely the'A SPEA KE RS"
and the "B SPEAKEBS". These are coupled with the Speaker
Selector Switch, which has to be set at the very position corres-
ponding to the terminals to which the speaker systems are
connected. Red terminal is for (+), while black for (-) .
27.AC POWER CORD
For operation of this tuner-amplifier the AC plug attached
to this cord should be connected to the AC powersupply socket
in your listening room.
28. EXTRA AC OUTLETS
These are convenient for supply of the AC power to other
annexed audio components such as record player, taoe recorder.
The UNSWITCHED terminal is independent of the Power
Switch of this tuner-amplifier where the AC power is always
available, while the SWITCHED one is coupled with the Power
Switch and supply of the AC power depends on the Power
Switch. The maximum capacity of the SWITCHED and
UNSWITCHED terminals is 100W and 200W respectively.

-
I
INPUT & OUTPUT TERMINALS
32. FIV ANTENNA TERMINAL (3OO OHMS) 33. GROUND TERMINAL
42- FM ATTENUATOF 36. AUX TERMINALS (AUX}
3i. FM ANTENNA TERIVINAL (75 OHIVS) 35. PHONO TERIVINAL
(PHONO-1 , PHONO-2)30.
26. SPEAKER TERMINALS AM EXTERNAL ANTENNA TERMINAL
41. AM LOOP STICK ANTENNA
27. AC POWER CORD 29. SPEAKER PROTECTION FUSE
44. MAIN.IN TERMINAL
38. DECK-2 RECORDING
OUTPUT TERMINAL
28. EXTRA AC OUTLETS 40. DECK-2 MONITOR TERMINAL
43 PRE. OUT TERMINAL DECK.1 MONITOR TERMINAL
34. TAPE CONNECTOR (DECK-2) DECK-1 RECORDING OUTPUT
TERMINAL
Note that in some countries in Europe, e.9., Scandinavian
countries, it is prohibited by law to make use of the extra AC
outlets. Thereford no AC outlet is available with the European
version.
29. SPEAKER PROTECTION FUSE
Replace the inside fuse if blown, ascertaining the cause and
giving the necessary remedy. With the European version, this
fuse is not provided.
ln CANADA, however, you cannot replace it by yourself
according to the CSA standard. Therefore, consult your LUX-
MAN dealer when it is blown.
30. AM EXTERNAL ANTENNA TERMINAL
ln case normal reception is possible with the loop stick
antenna provided on the rear panel, it is not necessary to use
this terminal. But when reception of weak signals is desired,
connect the exclusive outdoor antenna to this terminal. When
simple wire antenna is used for this terminal, it is not always
necessary to have a ground connection wh ich sometimes
deteriorates sensitivity. The exclusive outdoor antenna is
effective to reduce undesired noises.
31 FM ANTENNA TERMINAL (75 OHMS)
Use this connector for FM antenna with 75 ohms coaxial
cable as lead-in wire. A coaxial cable can be easily connected -
a core wire to the 75 ohms terminal and the sheathing wire to
the G ND terminal.
32. FM ANTENNA TERMINAL (3OO OHMS)
Connect to this terminal a T-type (di-pole) antenna or
antenna feeder cable for TV (impedance 300 ohms) or FM
antenna with TV feeder cable used as a lead-in wire. Do n,ot use
short wire on this terminal in place of the antenna, and always
connect the exclusive FM antenna.
33. GROUND TERMINAL
Connect the earth lead-wire of record player (from tonearm
or motor). This terminal may be used as an earthing terminal of
this tuner-amplifier, which is, however. not always necessary.
34. TAPE CONNECTOR (DECK_2)
This S-pin connector is of DIN standard. With recording
output (REC. OUT) and tape monitor (N/ONITOR) terminals in
it, connection for recording and playback is possible with a
single lead-wire of DIN plug if the tape recorder has the same
connector. For playback through this Connector both the
Monitor and Selector Switches have to be pressed in.
35. PHONO TERMINALS (PHONO-1, PHONO-2)
This terminal is for playback of a magnetic pick-up (MN/, Ml,
MC types). lnput sensititivity is 2.7mY with impedance 50K
ohms. Almost all pick-ups can be used except MC type of very
low output (0.0i - 0.3 mV). For such MC type cartridges of
extremely low output level, it is needed to boost the voltage up
to the specified level by use of step-up transformers or head-
amplif ier.
36 AUX TERMINAL (AUX)
This ia an auxiliary input terminal for playback of such
program source of flat frequency response as SW/LW tuner,
line output of tape recorder. and audio output of TV receiver.
lnput sensitivity 160mV and input impedance 50K ohms.
37 DECK-l RECORDING OUTPUT TERMINAL
Signal for recording is taken out from this terminal, which
is always available as long as an input signal is given to any of
the lnput Terminals {Phono, Aux, AM, FM) and the lnput
Selector Switch is set to the corresponding position, except
when the Tape Dubbing Switch is set to the "dub 2 to 1"

position. ln this case recording signals come from the DECK-2
Terminal.
38 DECK-2 RECORDING OUTPUT TERMINAL
This functions in the same way as the DECK-1 Recording
Output Terminal. With the Tape Dubbing Switch in the "dub
1 lo 2" position recording signals are given from the DECK-1
term inal.
39. DECK-1 MONITOR TERMINAL
Playback of line-output of tape recorder is possible from
this terminal. For playback through this terminal press in the
Tape Monitor Switch. A 3-head tape recorder makes it possible
to monitor playback sound while recording.
40. DECK-2 MONITOR TERMINAL
This terminal offers the same function as the DEC K-1
Monitor Terminal. For playback through this terminal press in
both the Tape Monitor and Tape Selector Switch.
41. AM LOOP STICK ANTENNA
Normally, good reception of AM broadcasting is possible
with this antenna. Rotate this antenna to ensure the optimum
reproduction.
42 ANTENNA ATTENUATOR
Since the front end of this tuner adopts dual gate MOS EFT's,
normally this attenuator should be left in the "OUT" position.
When very close to a broadcasting station, where problems
occur, use this.attenuator - to slide'it to the "lN" position.
Note that this attenuator is provided only for the north
American version.
43. PRE. OUT TERMINAL
The output of the preamplifier section can be taken from
these terminals. This is useful for connecting such audio equip-
ments as Tone Control amp, Graphic Frequency Equalizer etc,
not to mention other power amplifier. Normally this terminal is
connected to the MAIN-lN terminal by use of jumper-pins, and
it is necessary to remove these pins before using this terminal.
44. MAIN-IN TERMINAL
When you want to use only the power amplifier section of
the R-1070 output of other control amplifiers such as Tone
Control Amplifier, Graphic Frequency Equalizer etc. can be
connecte! to these terminals.
INSTALLATION
While the R-1070 Tuner-Amplifier has been designed for
maximum ease of installation and operation, we strongly suggest
you read this section through before proceeding to connect.and
operate the unit. Because the R-1070 incorporates many
technical and operating refinements, it may be a bit different
from equipment you have used in the past.
PLACEMENT AND MOUNTING
The R-1070 may be placed in virtually any convenient loca-
tion, keeping in mind the necessity of connecting cables to
your speakers and an antenna for FM. Because of its advanced
solid-state construction, the unit produces a little heat. Therefore,
certain minimum ventilation is necessary to provide optimum
When the R-l070 is placed on an open shelf in a bookcase
or cabinet about 10 (3") cm of free space should be allowed
above it.
ANTENNAS
Except in fringe areas no additional AlVl antenna is required
with the R-'l 070. For FM, a folded dipole, is generally adequate.
This section will tell you how to connect them.
AM ANTENNA
ln all but remote rural locations, the special fold out ferrite
core antenna mounted on the rear panel provides excellent AM
reception. lf an external antenna is required, connect a length of
wire (any type will do) to the AM ANTENNA terminal on the
rear panel.
INDOOR DIPOLE ANTENNA
FM ANTENNA
Connect the antenna lugs to the 300-ohm ANTENNA
terminals on the rear panel. Rotation of the FM antenna will be
needed for best reception.
FM OUTSIDE ANTENNA
lf you live in a remote fringe area, or in a metropolitan area
with reception problems, it may be necessary to use an outside
antenna. lf you require a separate FM antenna, purchase a
quality FM unit from your dealer. Connect the cable from the
antenna to the 300-ohm ANTENNA terminals on the rear of the
R-1 070.

3004: 75O
3OOA OUTDOOR ANTENNA MATCHING TRANSFOBMER
MASTER ANTENNA AND OTHER 75-OHM SYSTEMS
Some buildings have master antenna systems that carry FM.
Connect to the 75-ohm ANTENNA terminal on the rear of
the unit.
Note: For clarification, if necessary, see your dealer, who can
advise you concerning the best antenna installations.
LOUDSPEAKER
The R-1070 Tuner-Amprifier is designed to drive 2 pairs of
speakers, used either separately or 2 together.
Because of its high output power, two pairs of even the
lowest-eff iciency speaker systems may be used together without
fear of placing too heavy a demand upon the unit.
Although almost any type of wire may be used to connect
speakers to the tuner-amplifier, it is recommended that you use
standard guage rip cord. For runs over 1 5m (50ft), heavier gauge
rip cord should be used if possible. Whatever thickness of wire
you choose, pick the type where you can distinguish one lead
from another, either by conductor color, a ridge running along
the insulation of one conductor, or by a colored cord under the
insulation. This will help you hook up the speakers correctly.
PLEASE NOTE
(1) No more than 1.5cm (112"\ of wire should be bared for
hookup, since longer bared lengths may produce a short
ci rcu i t.
(2) Twist all strands of exposed wire tightly. Loose strands may
cause shorts.
CONNECTING SPEAKERS
Look at your speakers. You will note that one terminal is
unmarked, The other will be designated 'COM', 'COMMON',
'GND', 'GROUND', or Black. Connect the 'COIV' terminal of
each speaker to the appropriate black SPEAKERS terminal on
the rear of the tuner-amplifier by loosing the terminal knob and
inserting the bare wire in the hole, then fasten the knob. Make
sure the wire does not contact the chassis or another terminal,
to prevent shorts. Then connect the other speaker terminal to
the appropriate red SPEAKERS terminal of the tuner-amplifier.
To connect a single pair of speakers, connect the wires from the
left speaker (asviewed from the listening position)to the "LEFT"
A SPEAKERS terminals. Similarly, connect the right speaker to
the "RlGHT" A SPEAKERS terminals of the tuner-amplifier.
The 2nd pairs of speakers can be connected similarly to the B
SPEAKE RS terminals.
SPEAKER PHASING
To enjoy good stereo reproduction, it is necessary that the
two stereo speakers in any location work as a team,'pushing'
and 'pulling' the air in unison. Otherwise, low-pictched sounds
will sound weaker than they should, and the stereo effect at
higher frequencies will become indistinct. To connect your
speakers for proper stereo effect (this is called "phasing"),
proceed as follows:
Play an FM program with the Mode Switch in MONO position.
lf the low bass notes sound normal, the speakers are properly
phased. lf they sound thin, or weak, the speakers are out of
phase. Should this occur, turn off the tuner-amplifier and
carefully check the connections at either one of the speaker.
TURNTABLES/TAPE RECORDE RS/DECKS
AUTOMATIC AND MANUAL TURNTABLES
The R-1070 has 2 provisions for connection of two turn-
tables. Check the cartridge manual or your dealer, if in doubt
about the firoper input for the particular cartridge in your
turntable. The turntable's power cord can be connected to the
extra AC outlet on the rear of the R-1070, if it is provided.
TAPE RECORDERS AND DECKS
Tape recorders can be connected to record and playback
through the R-1070 by two methods: standard jacks and special
DIN type connector on the rear panel. See page 12 for tape
connections of all types. For additional information see the
manual of your tape machine or consult your dealer.

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ffi FoR ..RRECT PTAYBACK
INPUTS (CONNECTION OF INPUT EOUIPMENTS)
Check f irm connection to the tuner-amplifier's input terminals
or output terminals of record players, tape-recorders etc. lf no
playback sound comes from speaker systems, the R-1070 may
be, at first, suspected to be defective, so be sure about firm
connection between arm and cartridge and also firm fixture of
cartridge to the shell.
OUTPUTS (CONNECTION OF SPEAKER SYSTEMS)
Check firm connection between terminals and speakers. The
right-hand speaker viewed from the listener's position must be
connected to the "RlGHT" terminals of the R-1070, while the
left speaker to the " LE FT" terminals. Be caref u I about the
matching phase of left and right speakers. lf mismatched, play-
back sound does not come from the center of both speakers
even if the mode selector is set to the "MONO" position, and
in the case of stereophonic playback, faithful reproduction in
low frequency range cannot be expected. Be sure that the
speaker selector switch corresponds to the speaker terminals to
which the speaker is connected.
AC POWER SOURCE
Check whether the AC plug of the R-1070 is firmly con-
nected to the AC power source. and whether the dial scale lights
up when switched on.
INPUT SELECTOR SWITCH
Check whether the AC plug is firmly connected to the AC
power source, and whether the dial scale lights up when switched
on.
TAPE DUBBING SWITCH
Except for tape dubbing (reprint) it is recommended to set
this switch to the "source" position.
TAPE MONITOR SWITCH
For normal playback never press in this switch. Playback
with tape-recorder is feasible when this switch is pressed in.
TAPE SELECTOR SWITCH
After the Tape.Monitor Switch ls pressed in, choose the tape
playback terminal with this switch. When this switch is kept
unpressed the DECK-1 Monitor Terminal starts to function,
while when pressed in, the DECK-2 Monitor Terminal functions.
For playback through the Tape Connector this switch has to be
depressed.
VOLUME CONTROL
Full turn of this knob in the counter-clockwise direction
yields no sound. Turn to the clockwise direction and enjoy
playback at an appropriate volume. Also adjust unbalanced
volumes with the Balance Control between right and left
channels. Usually in the center rotation angle the same volume
is obtained for stereophonic reproduction.
ANTENNA
For satisfactory playback of FM and AM, connect an appro-
priate antenna to the antenna terminal.
MODE SELECTOR
This switch is to select the mode of reproduction. For stereo-
phonic reproduction, set this selector to the center "stereo"
position, otherwise stereophonic reproduction cannot be ob-
tained even if input signal is stereophonic.

ffi .PERATT.N PR..EDURE
PLAYBACK FROM RECORD DISC
CONNECTIONS
Generally a record player consists of a turntable ensuring
constant rotation of the record disc, a pick-up (cartridge) whose
stylus (needle) traces the sound groove of the disc converting
the physical signal of the record sound into the electric signal,
and the arm which holds this cartridge. The player has 2 cords
with pin plug at its end for both right and left channels. Connect
the pin connectors to the input terminals of this tuner-amplifier
IPHONO-1/21.
A probable earth lead of player may be connected to the
GND terminal of this tuner-amplifier. An AC cord of the player
to drive its motor may be connected to the extra AC outlet, if
avai I ab le.
This tuner-amplifier is provided with 2 input terminals
(PHONO-i and PHONO-2) to be selected by the input selector
switch (20), which is useful for comparison test of 2 pick-ups or
using 2 record players. For use of 1 player either of 2 input
terminals can be selected.
PLAYER-1
PLAYER-2
SIGNAL PATHS
Put the disc on the turntable, switch on the phono motor,
and set the stylus on the groove of disc. Then recorded signals
begin to be fed to the R-l070. First, signals fed to the R-l070
through PHONO terrninals are brought to the equalizer section,
where recorded signals are equalized and restored to the original
frequency curve. lncidentally this equalizer curve has been
standardized to the RIAA curve. The equalized signals are then
fed to the input selector switch (function switch). lf this switch
is not set at the correct position of PHONO, the signals are
blocked here and no more advance is possible. Then the signals
are divided into 2 channels, one line to the recording output
terminal, and the other to the tape monitor switch. Then to the
tape reprint switch which is effective on both channels. lf the
monitor switch is not pressed in, the signals are sent to the
mode selector switch, and volume control, but if pressed in, the
tape monitor terminals start to function and the signals are
stopped at this point. Except when the tape playback is made by
10
tape monitor terminals, the monitor switch must be kept un-
pressed at the normal position. But when the input signals are
fed to PHONO or AUX terminals recording output is always
obtainable regardless of the position of the monitor switch.
Then the signals are sent to the volume control through the
mode selector, filters, and loudness control. lf the volume knob
is turned to the extreme end of counter-clockwise direction, the
signals cannot proceed ahead. lt is necessary to set this control
at the optimum volume.
Such controls as low-cut filter, high-cut filter subsonic filter,
loudness, and tone controls are for flexible and diversified
adjustment of blayback sound and do not block the signals
completely. Then the signals reach the speaker switches amplif ied
by the main amplifier. Sound playback from speaker systems is
thus realized, if the speaker switch is set at the very position
corresponding to the speaker terminals to which the speakers
are connected. The above is the feeding path of PHONO signals
starting from input terminals to the speaker systems. Difficult as
it may sound, you can easily understand it from the attached
block diagram. For your pleasant command of the R-1070, we
recommend that you bear the block diagram in your mind.
PLAYBACK PERFORMANCE
Now put a disc on the turntable for playback performance.
As the volume control is turned clockwise f rom the cut position,
playback sound comes out from speakers. As explained in the
paragraph of Signal Paths the sound playback is possible regard-
less of the position of Mode Selector etc. as far as these essential
controls are set at the correct position such as lnput Selector
Switch (20), Monitor Switch (3), Speaker Selector Switch (24)
and Volume Control (23) . Now all preparations have been
completed. Check if the volume levels on both right and left
speakers are identical. lf deviated adjust lt by the Balance
Control. For stereophonic playback see to it that the Mode
Selector Switch is kept in the "stereo" position, otherwise
correct stereophonic playback is not feasible.
PLAYBACK OF AMiFM BROADCASTING
PROG RAM
Selection of the input selector at the AM or FM position
ensures playback of AM or FM broadcasting program. lf you
want, you can connect other tuner (AM, FN/, LW or SW etc.) to
the AUX terminal of this tuner-amplifier. ln this case the selector
must be set to the corresponding position. As shown in the
block diagram the input signals from the tuner section or AUX
terminals are directly fed to the lnput Selector Switch. After-
wards the signals trace the same blocks as explained in the
paragraph of Playback from Record Disc and are reproduced
from the speaker systems. Both for FM stereophonic and
monaural broadcasting the Mode Selector Switch can be set
at the position of "FM", for such accommodation to the input
souce can be made in the tuner section. ln case weak FM
stereo is received and you feel it noisy, set the Mode Selector
Switch (6) to the "mono" position for better reproduction.
ln case of AM/LW program from other tuner, there is possible
trouble of modulation hum, which can be eliminated by varying
the distance and angle of these components.

OTHER TUNER
OTHER PLAYBACK
The signals of flat frequency response from such sources as
TV receivers do not need and equalizer stage, and for playback
of such audio equipments the AUX terminal can be used.
Connection and operation is same with that of AM/FM
broadcasting program.
PLAYBACK FROM TAPE
PLAYBACK FROM TAPE MONITOR TERMINALS
Almost all of tape-recorders,.and tape-decks currently
marketed integrate audio pre-amplifiers in their circuit.
Also there is a tape-player exclusively for playback. Connect
the output terminal (LINE OUT) to the DECK-1 Tape Monitor
Terminal. Then press in the Monitor switch and the playback
from the DECK-l Monitor Terminal is realized. lf 2 rape-
recorders are connected to the Terminals, selection between 2
tape-recorders is possible by the Tape Selector Switch (4). This
amplifier section can be divided into 2 sections - one before the
Recording Output Terminals (REC. OUT) and the other after
the Tape Monitor Switch, and 3-head tape-recorder makes it
feasible to make recording with the former section and
simultaneously to make playback with the latter section. Note
that normal function cannot be expected if 2 sets of tape-
recorder for playback are connected to the terminals of DECK-2
MONITOB and Tape Connector at the same time, since these 2
are coupled in the inside circuit and effect each other. Therefore
if Tape Monitor Terminals and Tape Connector are used, the
tape-recorders should be connected to the terminals of DECK-1
MONITOR and the Tape Connector.
PLAYBACK FROM AUX TERMINALS
Playback of tape is possible if the line output of tape recbrder
or tape-deck is connected to the AUX terminal of this tuner-
amplifier by use of pin-jack lead and the lnput Selector Switch
is set to the "aux" position. Alloperations in this case aresame
with those for the Playback of Tuner. Note that when.tape
playback is made through AUX terminals, the line input or
AUX input terminals of the tape-recorder should not be con-
nected. lf connected to the Recording Output Terminals (REC.
OUT) of the R-1070 there will be possible oscillation by feed-
back of signals.
PLAYBACK FROM TAPE CONNECTOR
This connector: is of DIN norm, and very convenient for
simple connection by a single patch cord between the tape-
recorder and recording/playback connectors of the R-1070.
A DIN cord should be connected between DIN connector of
the tape-recorder and Tape Connector of the R-1070. Playback
from Tape Connector is possible if the Tape Monitor Switch is
pressed in.
RECORDING ON TAPE
ln case of playback of various program sources through input
terminals of this amplifier, the same signals to these reproduced
in speakers are available at the Recording Output Terminals and
Tape Connector if the Tape Dubbing Switch is set at the
"source" position. By connection of these terminals to the
input terminals (ALJX or LINE-lN) of'the tape recorder, you
can enjoy simultaneous recording and playback. These recording
signals are taken out before the Tape Monitor Switch and there
is no influence of such controls as Volume Control, Tone
Controls and Filters etc.
TAPE DUBBING (REPRINTING)
So called tape dubbing - tape-to-tape reprinting is possible
with the Tape Dubbing Switch, when the switch is set to the
"dub 1 Io 2" or "dub 2 to 1" position. ln the "dub 1 Io 2"
position connect the LINE-OUT terminals of the tape-recorder
with recorded tape to the DECK-l TAPE MONITOR while the
LINE-lN (AUX) terminals of the second tape-recorder to the
"DFCK-2 REC. OUT", and the tape dubbing is possible from
the lst to 2nd tape-recorder: vise versa in the "2 to l " position.
Similarly tape dubbing is possible between the DECK-1
TAPE MONITOR and the Tape Connector. ln the dubbing
process if the LINE-lN terminals of the 1st tape-recorder is
connected to the "DECK-1 REC. OUT" and the LINE-OUT
of the 2nd tape-recorder to the "DECK-2 TAPE N/ONITOR"
simple operation of the Tape Selector Switch between "deck-l"
and "deck-2" allows comparision between the original sound
and newly recorded one. Remember that for reproduction of
other program sources than tape, the Tape Monitor Switch must
be kept unpressed.
lf there are 2 tape-recorders, reprinting of tape is feasible also
by other method; Connect the tape-recorder of better recording
performance to the Recording Output Terminals and other one
to the AUX terminals exclusively for playback setting the lnput
Selector Switch to the relevant "aux" position.

SIMU LTANEOUS PLAYBACK MONITORING
3-head tape-recorder ensures Simultaneous Playback Moni
toring enabling to ascertain perfect recording. ln case of 3-heac
tape-recorder heads and amplifiers for recording and playback
exist independently in the circuit, which ensures simultaneous
recording on tape and playback of the sound recorded on the
tape.
ln this case recording on tape and playback of the recorded
sound is practised at the same time, and connection must be
made for both functions. Need to connect the DECK-1 Record-
ing Output Terminal to the Line lnput Terminals (AUX lnput)
of tape-recorder, and the DECK-l Monitor Terminal to the
Output Terminals (LINE OUT) of the tape-recorder and to set
the Tape Dubbing Switch to the "source" position. The Monitor
Switch has to be pressed in, and select by the Tape Selector
Switch the position corresponding to the terminals to which the
tape-recorder is connected. Now repetition of pressing the
Monitor Switch makes it feasible to compare the original sound
with recorded one.
Thus possible recording error can be prevented in case of
3-head tape-recorder. lncidentally note that reproduction of
recorded sound becomes a little bit delayed as compared with
that of original sound since there is a gap between recording
head and playback head. Simultaneous Playback Monitoring can
be made through the Tape Connector as well. A single DIN
patch cord ensures connection for recording and playback, and
simple operation of pressing the Monitor Switch will do when
the Tape Selector Switch is depressed.
PLAYBAC K
SIMULTANEOUS RECORDING
This tuner-amplifier is provided with 2 sets of Recording
Output Terminals ( R EC. OUT) enabl ing to record si mul taneously
on 2 tape-recorders. lf desired, combination recording on reel-to
reel recorders and/or cassette recorders can be enjoyed. Moreover
if the Tape Connector is used recording on 3 tape-recorders is
possible. Remember that the Tape Dubbing Switch (5) must be
set to the "source" position.
This facility is useful for safer printing or effective recording
etc. As the impedance at the Recording Output Terminals is
kept sufficiently low, mutual interference will be almost nil
between the recorders under simultaneous operation.
ABOUT DIN TAPE CONNECTOR
The Tape Connector of this tuner-amplifier is provided at the
rear panel for convenient connection. This is of DIN norm.
As explained in the paragraph of Playback from Tape and
Recording on Tape, if tape-recorder is equipped with DIN
connector, connection by a Dl N patch cord suffices for recording
and playback. See to it that this connection is practised only
by DIN CORD since the impedance at Becording Output
Terminals is kept relatively high at 80K ohms t 20K ohms.
OPERATION OF CONTROLS
SELECTION OF MODE (CONVERSION OF
PLAYBACK MODE)
This tuner-amplifier is for stereophonic reproduction and
integrates independent amplifiers for 2 channels (right and left) .
Without the Mode Selector the signals fed to the right channel
terminal are reproduced at the right channel speaker. The Mode
Selector is placed between these 2 amplifiers to change thO
mode of reproduction.
CONTROL OF VOLUME
Sound volume can be properly adjusted by volume control.
ln the attenuation characteristics turning angle is proportionate
to attenuation degree of dB, and the dB value and the volume
audible to human ears are in the porportionate relation. That is
to say, rotation the of knob is in proportion to the sound
volume felt by human ears. The increasing degree o-f volume is
felt quite natural as the knob is turned on to the clockwise
d irection.
knob position connection
input output performance USE
STEREO R--------->R
L------------>L
nomal stereo
playback for normal stereo playback
MONO R------+-->R
r---.f---r right and left
input signals
are integrated
for monaural playback
of stereo program
REVERSE R\><rR
L// \L
reversed
stereo
playback
to reverse right and
left signal sources

CONTROL OF VOLUIVIE BALANCE
ln case of deviation between the volume levels of right and
left channels, adjust unbalanced volume level by the Balance
Control provided at the rear position of the Volume Control.
The volume balance of both channels can be adjusted so that
monaural disc sound reproduced by the stereo cartridge comes
from the center of the right and left channels. Usually the
volume Ievel of both channels is adjusted identical at the center
rotation angle on the knob. lf a program source had deviation of
the volume level between 2 channels, establish correct balance
with this control.
TONE CONTROLS
The ultimate purpose of the audio system is to make the high
fidelity reproduction of program sources. The reproduction
conditiohs and circumstances do not always match with record-
ing conditions, and it is impossible to reproduce the same
sound with the original one.
Also there is no objective standard to judge good sound f rom
inferior one. The only possible solution is for every listener to
create his favorite sound according to his own taste. lt is there-
fore very important that the audio system offers such facility to
permit flexible controls for creation of the best sound. This
receiver is equipped with various tone controls for subtle and
minute control of the reproduced sound such as Bass Control
(20) and Treble Control (21).
Bass Control is a tone control on frequency response of low
frequency range. lt is designed so that response is flat at the
electric center point, and a clockwise turn of the knob intensifies
low frequency range while counter-clockwise turn yields attenu-
ati on.
OPERATION OF HIGH CUT FILTER
When this filter (9) is switched on the amount of high
frequency range over TkHz is cut off at the attenuation rate of
-6dB/oct. Useful for removal of scratch noise, hissing noise of
tape etc. Also this can be used as an auxiliary control for Treble
Contro I .
OPERATION OF SUBSONIC FILTER
The ultra low frequency noises caused by warping of disc,
resonance of tonearm, wow and flutter, rumbling of phono
motor and howling etc. mainly appear below 20H2. Even they
are out of audible frequency, they move the speaker cone to
cause harmful distortion.
The subsonic filter eliminates such noises quite effectively by
reducing the amount of ultra low frequency range below 30Hz
at the rate of -6dB/oct.
OPERATION OF LOUDNESS
Because loudspeakers and ears generally respond less to
extreme high and low (treble and bass) frequencies as volume
levels are reduced, the LOUDNESS switch is included to boost
only the low frequencies and thereby provides tonal compensa-
tion. Whether or not you use this switch depends upon the
levels at which you generally listen, the kind of speakers you
have, the room acoustics and a number of other variables.
Experimentation is the best guide to using the LOUDNESS
switch.
PEAK INDICATOR
This tuner-amplifier is equipped with the Selector Switch for
Peak lndicator Sensitivity so that these Peak lndicators may be
utilized even at low output level by increasing only the
indicator's sensitivity by 12dB independent of the gain of the
power output circuit itself. When this Selector Switch is kept
upressed at the normal position 0dB indicator is equivalent to
75Wlch, while at the status of "pressed in" 0dB means 4.7Wlch
(8 ohms).
lndication UNPRESSED (I) PRESSED (-r.)
+ 3dB
0dB
- 3dB
- 6dB
- I dB
-12 dB
-15d8
-18 dB
-21 dB
-24 dB
75.0W
37.5W
18.8W
9.4W
4.7W
2AW
1.2W
0.6w
0.3w
9.4W (-(
4.7W (-
2.4W (-
1.2W (-
600mW I
300mW I
150mW I
75mW (
38mW I
19mW I
)d B)
I 2dB)
I 5dB)
tsdB)
-21d3l
-24dBl
-2tdBl
-30d B)
-33d8)
-36d B)

STANDARD CURVES
SIGNAL SELECTIVITY
DISTORTION, NOISE RESPONSE
FM DISTORTION
5Apv 1O0pr zgqpr 5m/V I mV 2n )
ANTE{NA INPUT L€IEL
'..5
2
1
Go.s
o2
0.1
0.s
o.@ 5m 1k 2k
fREOUENCY(H2)
6m 400 2AA 0 +m0 +400
DIIUNED FR€OUENCY(KH'
E
I
s
s
5
4
2
1
Smv l00mv 200mV. WmV
FM FREOUENCY, CHANNEL SEPARATION (SK)
500 lk 2k 5k
FR€OUENCYlHz)
7o
60
s
40
&

l.M.D. vs POWER
INPUT; MAIN-lN, OUTPUT; SP.T.,8-ohm load, Both ch
Driven 6OHz.;7PY12=4' 1
T.H.D. vs POWER
INPUT; AUX, OUTPUT; SP.T.,8-ohm load, Both ch.
Driven VR; max. Tone: Flat
0.5
0.2
0.1
_: o- 05
i
o.@
0.01
0_005
0.1 0.2 2510
POWER OUTPUT(W)
a.42
0.01
0.005
0,002
+16
t14
rl2
+10
+8
+6
+4
€rz
2o
4
6
8
10
-12
- 14
-16
TONE CONTROL
INPUT; AUX, OUTPU; SP.T.,0dB = 1W,8-ohm load, Both ch. Driven VR; max
500 tk 2k
TREQUENCY(Hz)
FREOUENCY RESPONSE . SUBSONIC FILTER
INPUT; AUX, OUTPUT; SP.T., Vol.; max.
s0 lk
FREoUENcY(H2)
t5

ffi sPECrFrcATroN t
IAUDIO SECTION]
* Power Output:
* Rated l.M.:
* Frequency Response:
* lnput Sensitivity:
* Phono Overload Voltage:
(at l kHz)
* Signal to Noise Ratio:
* Residual Noise:
* Channel Separation:
(at lkHz)
* Tone Control:
* Filters:
* Loudness Control:
(VR: -30d8)
* Peak lndicator:
[FM SECTION]
* 50dB Ouieting Sensitivity:
* IHF Usable Sensitivity:
* Signal to Noise Ratio at 65dBf :
* Frequency Response:
* Total Harmonic Distortion:
* Capture Ratio:
* lmage Response Ratio:
* lF Response Ratio:
* AM Suppression Ratio:
* Stereo Separation:
* Spurious Response Ratio:
* Ad.iacent Channel Selectivity:
* Alternate Channel Selectivity:
* Subcarrier Product Ratio:
* SCA Relection Ratio:
* Output Voltage:
* Muting Threshold:
IAM Sectionl
* IHF Usable Sensitivity:
* lmage Ratio at l MHz:
* lF Rejection Ratio at lMHz:
* Signal to Noise Ratio:
IGeneral]
* Power Consumption:
* Dimensions:
* Weight:
* Additional Features:
75 watts minimum continuous per channel
both channels driven into 8 ohms load at
any f requency f rom 2OHz to 20,000H2 with
no more than O.O2/o total harmonic distortion.
no rrnore than O.O2o/o
(8 ohms, 75W/ch, both ch driven, 60Hz:7k{z=4:11
15Hz - 'l 00kHz (1'l dB)
2.7mV (phono-'l l2l, 16OmV (tr.tner, aux, moni.),
1.4V (main inl
160mV
86dB (phono-1 12,IHF-A weighted, 10mV)
106d8 (tuner, aux, monitor, IHF-A weighted)
no more than 0.3mV
75dB (aux, monitor)
TREBLE 110d8 at 10kHz
BASS t10dB at 100H2
Subsonic 30Hz(-6dB/oct.)
High Cut TkHz (-6dB/oct.)
+8dB at lOoHz
+3, 0, -3, -6, -9, -12, -15, -18, -21 , -24d8
75usec. 14.2dBf l2.8pVl 50usec. 15.3dBt l3.2p.Vl
10.3dBf (1.8pV)
75dB
30Hz - 1SkHz (t1dB)
Imono]
100H2 0.06% (wide)
lkHz 0.06% (wide)
6kHz 0.12% (wide)
l kHz O.2% (narrowl
0.9d8 (wide)
85dB
90dB
62dB
Istereo]
0.15% (wide)
0.1% (wide)
0.2% (wide)
0.5% (narrow)
1.9dB (narrow)
45dB (wide, 100H2), 48dB (wide, lkHz)
40dB (wide, 10kHz), 30dB (narrow, lkHz)
100d8
12dB (narrow, t200kHz)
80dB (narrow, t400kHz) 60dB (narrow. t300kHz)
48dB (wide, t400kHz)
65dB
60dB
1V
1opV
25OpY lm
50dB
40dB
50dB
2.8VA (CSA rated)
490(W) x 405(Dl x 180(H)mm
(19-5I16" x 15-15/16" x7-3132"I
(including Legs, Rear Protrusions & Knobs)
Net 14.9kgs (32.8 lbs.)
Gross 16.5kgs (36.3 lbs.)
Speaker Selector Switch, Headphone Jack,
Tape Dubbing Circuit, Tape Monitor Circuit,
Peak lndicator Sensitivity Selector, FM
lF Bandwidth Selector, FM Muting Off Switch,
Mode Switch, AM Loop Stick Antenna, Protection
Circuit, etc.
lb
Specifications and appearance design sublect to change without notice.