Marantz SC-7-S-1 Owners Manual

Model SC-7S1 User Guide

Stereo Control Amplifier

R

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE COVER (OR BACK)

NO USER-SERVICEABLE PARTS INSIDE

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL

The lightning flash with arrowhead symbol
within an equilateral triangle is intended to
alert the user to the presence of
uninsulated “dangerous voltage” within the
product’s enclosure that may be of
sufficient magnitude to constitute a risk of
electric shock to persons.

The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the product.

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE.

CAUTION:

BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.

ATTENTION:

INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS
LA
BORNE CORRESPONDANTE DE LA PRISE ET POUSSER
JUSQU’AU FOND.

TO PREVENT ELECTRIC SHOCK, MATCH WIDE

POUR ÉVITER LES CHOC ÉLECTRIQUES,

IMPORTANT SAFETY

INSTRUCTIONS

READ BEFORE OPERATING EQUIPMENT

This product was designed and manufactured to meet strict quality
and safety standards. There are, however, some installation and
operation precautions which you should be particularly aware of.

1. Read Instructions – All the safety and operating instructions
should be read before the product is operated.

2. Retain Instructions – The safety and operating instructions
should be retained for future reference.

3. Heed Warnings – All warnings on the product and in the
operating instructions should be adhered to.

4. Follow Instructions – All operating and use instructions should
be followed.

5. Cleaning – Unplug this product from the wall outlet before
cleaning. Do not use liquid cleaners or aerosol cleaners. Use a
damp cloth for cleaning.

6. Attachments – Do not use attachments not recommended by the
product manufacturer as they may cause hazards.

7. Water and Moisture – Do not use this product near water-for
example, near a bath tub, wash bowl, kitchen sink, or laundry
tub, in a wet basement, or near a swimming pool, and the like.

8. Accessories – Do not place this product on an unstable cart,
stand, tripod, bracket, or table. The product may fall, causing
serious injury to a child or adult, and serious damage to the
product. Use only with a cart, stand, tripod, bracket, or table
recommended by the manufacturer, or sold with the product.
Any mounting of the product should follow the manufacturer’s
instructions, and should use a mounting accessory
recommended by the manufacturer.

9. A product and cart combination should be moved with care.
Quick stops, excessive force, and uneven surfaces may cause
the product and cart combination to overturn.

10. Ventilation – Slots and openings in the cabinet are provided for
ventilation and to ensure reliable operation of the product and to
protect it from overheating, and these openings must not be
blocked or covered. The openings should never be blocked by
placing the product on a bed, sofa, rug, or other similar surface.
This product should not be placed in a built-in installation such
as a bookcase or rack unless proper ventilation is provided or
the manufacturer’s instructions have been adhered to.

11. Power Sources – This product should be operated only from the
type of power source indicated on the marking label. If you are
not sure of the type of power supply to your home, consult your
product dealer or local power company. For products intended
to operate from battery power, or other sources, refer to the
operating instructions.

12. Do not defeat the safety purpose of the polarized or grounding­type 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 of the third prong are provided
for your safety. If the provided plug does not fit into your outlet,
consult an electrician for replacement of the obsolete outlet.

AC POLARIZED PLUG

13. Power-Cord Protection – Power-supply cords should be routed
so that they are not likely to be walked on or pinched by items
placed upon or against them, paying particular attention to cords
at plugs, convenience receptacles, and the point where they exit
from the product.

14. Protective Attachment Plug – The product is equipped with an
attachment plug having overload protection. This is a safety
feature. See Instruction Manual for replacement or resetting of
protective device. If replacement of the plug is required, be sure
the service technician has used a replacement plug specified by
the manufacturer that has the same overload protection as the
original plug.

15. Outdoor Antenna Grounding – If an outside antenna or cable
system is connected to the product, be sure the antenna or cable
system is grounded so as to provide some protection against
voltage surges and built-up static charges. Article 810 of the
National Electrical Code, ANSI/NFPA 70, provides information
with regard to proper grounding of the mast and supporting
structure, grounding of the lead-in wire to an antenna discharge
unit, size of grounding conductors, location of antenna­discharge unit, connection to grounding electrodes, and
requirements for the grounding electrode. See Figure 1.

16. Lightning – For added protection for this product during a
lightning storm, or when it is left unattended and unused for long
periods of time, unplug it from the wall outlet and disconnect the
antenna or cable system. This will prevent damage to the
product due to lightning and power-line surges.

17. Power Lines – An outside antenna system should not be located
in the vicinity of overhead power lines or other electric light or
power circuits, or where it can fall into such power lines or
circuits. When installing an outside antenna system, extreme
care should be taken to keep from touching such power lines or
circuits as contact with them might be fatal.

18. Overloading – Do not overload wall outlets, extension cords, or
integral convenience receptacles as this can result in a risk of
fire or electric shock.

19. Object and Liquid Entry – Never push objects of any kind into
this product through openings as they may touch dangerous
voltage points or short-out parts that could result in a fire or
electric shock. Never spill liquid of any kind on the product.

20. Servicing – Do not attempt to service this product yourself as
opening or removing covers may expose you to dangerous
voltage or other hazards. Refer all servicing to qualified service
personnel.

21. Damage Requiring Service – Unplug this product from the wall
outlet and refer servicing to qualified service personnel under
the following conditions:

a. When the power-supply cord or plug is damaged.
b. If liquid has been spilled, or objects have fallen into the product.
c. If the product has been exposed to rain or water.
d. If the product does not operate normally by following the

operating instructions. Adjust only those controls that are
covered by the operating instructions as an improper adjustment
of other controls may result in damage and will often require
extensive work by a qualified technician to restore the product to
its normal operation.

e. If the product has been dropped or damaged in any way, and

f. When the product exhibits a distinct change in performance –

this indicates a need for service.

22. Replacement Parts – When replacement parts are required, be
sure the service technician has used replacement parts
specified by the manufacturer or have the same characteristics
as the original part. Unauthorized substitutions may result in fire,
electric shock, or other hazards.

23. Safety Check – Upon completion of any service or repairs to this
product, ask the service technician to perform safety checks to
determine that the product is in proper operating condition.

24. Wall or Ceiling Mounting – The product should be mounted to a
wall or ceiling only as recommended by the manufacturer.

25. Heat – The product should be situated away from heat sources
such as radiators, heat registers, stoves, or other products
(including amplifiers) that produce heat.

ENGLISH

WARRANTY

For warranty information, contact your local Marantz distributor.

RETAIN YOUR PURCHASE RECEIPT

Your purchase receipt is your permanent record of a valuable
purchase. It should be kept in a safe place to be referred to as
necessary for insurance purposes or when corresponding with
Marantz.

IMPORTANT

When seeking warranty service, it is the responsibility of the
consumer to establish proof and date of purchase. Your purchase
receipt or invoice is adequate for such proof.

FOR U.K. ONLY

This undertaking is in addition to a consumer's statutory rights and
does not affect those rights in any way.

FRANÇAIS

GARANTIE

Pour des informations sur la garantie, contacter le distributeur local
Marantz.

CONSERVER L'ATTESTATION D'ACHAT

L'attestation d'achat est la preuve permanente d'un achat de valeur.
La conserver en lieu sur pour s'y reporter aux fins d'obtention d'une
couverture d'assurance ou dans le cadre de correspondances avec
Marantz.

IMPORTANT

Pour l'obtention d'un service couvert par la garantie, il incombe au
client d'établir la preuve de l'achat et d'en corroborer la date. Le reçu
ou la facture constituent des preuves suffisantes.

DEUTSCH

GARANTIE

Bei Garantiefragen wenden Sie sich bitte an Ihren Marantz-Händler.

HEBEN SIE IHRE QUITTING GUT AUF

Die Quittung dient Ihnen als bleibende Unterlage für Ihren wertvollen
Einkauf Das Aufbewahren der Quittung ist wichtig, da die darin
enthaltenen Angaben für Versicherungswecke oder bei
Korrespondenz mit Marantz angeführt werden müssen.

WICHTIG!

Bei Garantiefragen muß der Kunde eine Kaufunterlage mit
Kaufdatum vorlegen. Ihren Quittung oder Rechnung ist als
Unterlage ausreichend.

CE MARKING

English

The SC7S1/N1G is in conformity with the EMC directive and low-voltage directive.

Français

Le SC7S1/N1G est conforme à la directive EMC et à la directive sur les basses tensions.

Deutsch

Das Modell SC7S1/N1G entspricht den EMC-Richtlinien und den Richtlinien für Niederspannungsgeräte.

English

WARNINGS

– Do not expose the equipment to rain or moisture.
– Do not remove the cover from the equipment.
– Do not insert anything into the equipment through the ventilation holes.
– Do not handle the mains lead with wet hands.
– Do not cover the ventilation with any items such as tablecloths, newspapers,

curtains, etc.

– No naked flame sources, such as lighted candles, should be placed on the

equipment.

– When disposing of used batteries, please comply with governmental regulations

or environmental public instruction’s rules that apply in your country or area.
– Do not place anything about 1 meter above the top panel.
– Make a space of about 0.2 meter around the unit.

Français

AVERTISSEMENTS

– Ne pas exposer l’appareil à la pluie ni à l’humidité.
– Ne pas essayer de retirer le boîtier de l’appareil.
– Ne rien insérer dans l’appareil par les orifices de ventilation.
– Ne pas manipuler le cordon d’alimentation avec les mains mouillées.
– Ne pas recouvrir les ouïes de ventilation avec un objet quelconque comme une

nappe, un journal, un rideau, etc.
– Ne placer aucune source de flamme nue, comme une bougie allumée, sur

l'appareil.
– Pour mettre au rebut les piles usées, respecter les lois gouvernementales ou les

règlements officiels concernant l’environnement qui s'appliquent à votre pays ou

région.
– Ne placer aucun objet à moins d'un mètre environ du panneau supérieur.
– Veiller à ce qu’aucun objet ne soit à moins de 0,2 mètre des côtés de l'appareil.

Deutsch

– Das Gerät nicht Regen oder Feuchtigkeit aussetzen.
– Die Abdeckung nicht vom Gerät abnehmen.
– Keine Gegenstände durch die Belüftungsschlitze stecken.
– Das Netzkabel nicht mit feuchten oder nassen Händen anfassen.
– Decken Sie die Lüftungsöffnungen nicht mit einem Tischtuch, einer Zeitung,

einem Vorhang usw. ab.

– Es dürfen keine Gegenstände mit offener Flamme, wie etwa brennende Kerzen,

auf dem Gerät aufgestellt werden.

– Beachten Sie bei der Entsorgung der verbrauchten Batterien alle geltenden

lokalen und überregionalen Regelungen.

– Darauf achten, daß über dem Gerät ein Freiraum von mindestens 1 meter

vorhanden ist.

– Auf allen Geräteseiten muß ein Zwischenraum von ungefähr 0,2 meter

vorhanden sein.

WARNHINWEISE

Table of Contents

1. Instruction for use ................................................................................................................. 2

Foreword .................................................................................................................................................................................. 2

Equipment mains working setting ............................................................................................................................................ 2

Copyright .................................................................................................................................................................................. 2

Precautions............................................................................................................................................................................... 2

How to use battery.................................................................................................................................................................... 2

2. Accessaries ........................................................................................................................... 2

3. Main feature of product ........................................................................................................ 3

4. Connections........................................................................................................................... 4

Connection 1 Stereo connection ....................................................................................................................................... 4

Balanced terminal ................................................................................................................................................................. 5

Connection 2 Bi-Amp Connection

(Speaker system needs to comply with Bi-Amp connection) ............................................................................................ 6

Bi-Amp (Connection) ............................................................................................................................................................ 7

Connection 3 Complete Bi-Amp Connection

(Speaker system needs to comply with Bi-Amp connection) ............................................................................................ 8

Complete Bi-Amp connection ............................................................................................................................................... 9

Installing the SACD multi-channel audio speakers ........................................................................................................... 10

(ITU) International Telecommunication Union ..................................................................................................................... 10

Connection 4 5.1ch multi-channel connection ............................................................................................................... 11

5. Name and funtion ................................................................................................................ 12

For use of Remote controller .................................................................................................................................................. 14

6. Standard operation ............................................................................................................. 15

How to Play ............................................................................................................................................................................ 15

How to record ......................................................................................................................................................................... 15

7. How to operate function and how to set up ...................................................................... 16

Attenuate function .................................................................................................................................................................. 16

How to set up attenuation level .............................................................................................................................................. 16

Trim adjustment function ........................................................................................................................................................ 17

ENGLISH

8. Specification ........................................................................................................................ 19

Specification ........................................................................................................................................................................... 19

Dimensions ............................................................................................................................................................................. 19

9. Block diagram...................................................................................................................... 19

10.

Trouble shooting ................................................................................................................. 20

11.

Maintenance ........................................................................................................................ 20

1

1. Instruction for use

■ Foreword

ENGLISH

This section must be read before any connection is made to
the mains supply.

■ Equipment mains working setting

Your Marantz product has been prepared to comply with the
household power and safety requirements that exist in your
area.
“SC7S1/N1G” version product can be powered by 230 V AC
only.
“SC7S1/U1G” version product can be powered by 120 V AC
only.

■ Copyright

Recording and playback of any material may require con­sent. For further information refer to the following:

— Copyright Act 1956

— Dramatic and Musical Performers Act 1958

— Performers Protection Acts 1963 and 1972

— any subsequent statutory enactments and orders

■ Precautions

The following precautions should be taken when operating
the equipment.

■ How to use battery

Improper use of batteries may cause the risk of fluid leakage
or explosion.
Be specially careful in the following points.

q Insert the batteries with the correct and polarity as indi-

cated inside the battery case.

w Do not use a brand-new battery and used battery together.
e Dry cell batteries may produce different voltages even

when their shapes are the same. Do not use different types
of batteries together.

r Some batteries are rechargeable and some are not. Be

sure to read the caution and instructions described on
each battery.

t Used batteries should be disposed of in compliance with

the treatment method specified for your local area.

2. Accessaries

After opening the cover of the packing box, check that the
following accessories are included.

●

AC Power Cable

●

General Precautions

When siting the equipment ensure that:

— the ventilation holes are not covered;

— air is allowed to circulate freely around the equipment

— it is on a vibration free-surface;

— it will not be exposed to interference from an external

source;

— it will not be exposed to excessive heat, cold, mois

ture or dust;

— it will not be exposed to direct sunlight;

— it will not be exposed to electrostatic discharges

Never place heavy objects on the equipment.
If a foreign body or water does enter the equipment, contact
your nearest dealer or service centre.
Do not pull out the plug by pulling on the mains lead, hold the
plug.
It is advisable when leaving the house, or during a thunder­storm, to disconnect the equipment from the mains supply.

(Model SC7S1/N1G) (Model SC7S1/U1G)

●

Remote Controller RC-7S1SC

ATTEXITTRIM MODE

TRIM

BA

SACD/CD

BALANCED

LINE 1 LINE 2

VOLUME

TAPE

RC-7S1SC

●

AAA (R03) Batteries

●

Remote Cable

●

Instruction Manual (this Copy)

2

3. Main feature of product

●

The concept: channel separation for super
wide range & dynamic audio

We think it’s of the utmost importance to extend high frequency
response as well as channel separation so you can hear the
true meating of “Super Audio.”
This is why we have designed the input and output circuitry,
volume control section, and power supply circuits according
to this philosophy.
The result: an astonishing channel separation of over 100dB
at 20kHz.

●

Fully balanced control amp with an linear
volume control

The SC-7S1 is a full balanced, two-channel control amp pro­viding the channel separation you need for Super Audio.
Based on our own high quality four-gang active volume con­trol we have developed an even better linear control volume
that reduces gang errors from 0 to 100dB, ±0.5dB. By add­ing an additional HDAM SA (High Definition Amplifier Mod­ule), we improved the Common Mode Reject Ratio (CMRR)
dramatically, attaining an incredible ultra-wide frequency band
of 150kHz and succeeded in producing the perfect control
amplifier for Super Audio CD.

●

HDAM SA

The feedback impedance of the Current Feedback circuit was
reduced to its minimum to make it faster. We developed a
new High Definition Amplifier Modules (HDAM), a separeted
module operating as a buffer for the amplifier. The SC-7S1
has four HDAM SA on each input-output buffer and another
four units on the V/I converter.

●

Choke input system

In the power supply section, the choke input topology was
adopted to drastically reduce rectifier harmonic noise. This
system is especially suitable for a control amplifier in which
very small signal amplification occurs.

ENGLISH

●

Floating control bus system

We make it possible to synchronously drive two or more con­trol amps by using a floating control bus system connected
to as many as 6 sets of control amplifiers. We also enable you
to trim levels using the remote control, making it easy to set
up the optimal sound field on a multi-channel configuration.
The highest achievable stereo performance can be accom­plished when a system configured with two sets of SC-7S1
and four sets of MA-9S1 are connected in a bi-amped mode.
You will experience superb sound with unbelievable channel
separation.

3

ATTENUATOR

dB

UNBALANCED

BALANCED

INPUT

ATTENUATOR

dB

UNBALANCED

BALANCED

INPUT

-



6

3

9

12

0

-



6

3

9

12

0

ID NO.

ID NO.

4. Connections

Connection 1 Stereo connection

ENGLISH

：Signalflow

RIGHT

ANALOG

OUTPUTS

UNBALANCED

BALANCED

1 1

SACD Player / CD Player

LEFT

or

SC-7S1

BI­AMP

BALANCED

PUSH

PUSH

A

CH

PUSH

PUSH

B

CH

SACD/CD

1 LINE 2

To connect analog output of
FM tuner, VCR.

CD Recorder / Tape Deck

5

4

6

3

7

2

8

1

9

10

POWER

L

R

OUTPUT

INPUT

ANALOG

0

ID NO.

1

2

3

Setting 1

4

5

REC
OUT

TAPE

UNBALANCED

PRE OUTINPUT

BALANCED

21

REMOTE
CONTROL

OUT

ID NO.



IN

2

3

4

5

6

MODE

BI-AMPSTEREO

6

MODE

Setting STEREO

BI-AMPSTEREO

or

MA-9S1

or

MA-9S1

For L ch For R ch

(

)

-

ATTENUATOR

dB

0

--3

--6

--9

--12

-

∞∞

INPUT

BALANCED

UNBALANCED

PUSH PUSH

1 2

1

SPEAKERS

2

This connection can have options i,e, In-between 2 Un-balanced terminals or balanced terminals are
possible to wire SACD/CD and control Amp. And SC-7S1 with MA-9S1.

BALANCED

ATTENUATOR

--6

--9

--12

--3

-

∞∞

INPUT

0

UNBALANCED

1 2

(

)

­dB

1

SPEAKERS

2

4

Connection 1–4 are recommended by Marantz for SC-7S1 with Marantz MA-9S1.
Please read instruction manual for MA-9S1 in case of use.
Name and Function → P13

Standard set-up in using Marantz Monaural Power Amp MA­9S1.
Please refer to this connection in event of using other Power
Amps too.

●

SC-7S1 doesn't have Phono equalizer. So in the event of
using turn table, please use the optional Phono equalizer
to wire with SC-7S1.

●

SC-7S1 has function on in/output terminal with upper "A
ch", lower "B ch".

●

In event that stereo L ch signal has been wired with A ch
input, the signal will be come out to the pre-out of A ch.
Please pay attention to L ch, R ch if SC-7S1 is wired with
the other equipment.

4. Connections

ENGLISH

■ Balanced terminal

q The balanced output connector uses a XLR connector.
w The XLR connector for professional use is internally wired

in either of the following two systems.

1. USA system (Pin 2 = COLD, Pin 3 = HOT)

COLD

21

HOT

2. European system (Pin 2 = HOT, Pin 3 = COLD)

21

HOT

COLD

e The SC-7S1 uses the USA system of 1.

When a preamp or main amplifier adopting the European
system is connected using a cable with XLR balanced
connectors, the reproduced signal may be inverted of
phase.
In this case, correct the wiring of the one of the XLR con­nectors on the extremities of the cable to the USA system
by exchanging the connections of pins 2 and 3. This will
make it possible to play the signal with the correct phase.

GND

3

GND

3

5

ATTENUATOR

dB

UNBALANCED

BALANCED

INPUT

ATTENUATOR

dB

UNBALANCED

BALANCED

INPUT

-



6

3

9

12

0

-



6

3

9

12

0

ATTENUATOR

dB

UNBALANCED

BALANCED

INPUT

ATTENUATOR

dB

UNBALANCED

BALANCED

INPUT

-



6

3

9

12

0

-



6

3

9

12

0

ID NO.

ID NO.

4. Connections

Connection 2 Bi-Amp connection

ENGLISH

：Signalflow

(Speaker system needs to comply with Bi-Amp connection)

RIGHT

ANALOG

OUTPUTS

UNBALANCED

BALANCED

1 1

SACD Player / CD Player

LEFT

or

SC-7S1

BI­AMP

BALANCED

PUSH

PUSH

A

CH

PUSH

PUSH

B

CH

SACD/CD

1 LINE 2

To connect analog output of
FM tuner, VCR.

CD Recorder / Tape Deck

5

4

6

3

7

2

8

1

9

0

POWER

10

L

R

OUTPUT

INPUT

ANALOG

ID NO.

1

2

3

Setting 1

4

5

REC
OUT

TAPE

UNBALANCED

PRE OUTINPUT

BALANCED

21

REMOTE

CONTROL

ID NO.



MODE

2

3

4

5

6

IN

OUT

BI-AMPSTEREO

6

MODE

BI-AMPSTEREO

Setting STEREO

MA-9S1 MA-9S1

For L ch MF/HF For R ch MF/HF

(

)

-

ATTENUATOR

dB

0

--3

--6

--9

--12

-

∞∞

INPUT

BALANCED

UNBALANCED

PUSH PUSH

1 2

1

SPEAKERS

2

BALANCED

ATTENUATOR

--6

--9

--12

--3

-

∞∞

INPUT

0

(

)

­dB

UNBALANCED

1 2

1

SPEAKERS

2

MA-9S1 MA-9S1

For L ch For R ch

(

)

-

ATTENUATOR

dB

0

--3

--6

--9

--12

-

∞∞

INPUT

BALANCED

UNBALANCED

PUSH PUSH

1 2

1

SPEAKERS

2

BALANCED

ATTENUATOR

--6

--9

--12

--3

-

∞∞

INPUT

0

(

)

­dB

UNBALANCED

1 2

1

SPEAKERS

2

6

4. Connections

This connection can have options i,e, In-between 2 Un-balanced terminals or balanced terminals are
possible to wire SACD/CD and control Amp.
Please select either way of connection.

Enhance the connection 1 to Bi-Amp connection, and drive
Low speaker unit and Mid/High speaker unit by respective
power Amplifiers.

■ Bi-Amp (connection)

The wiring method enhanced from Bi-Wiring, drive Low
speaker unit and Mid/High speaker unit by respective power
Amplifiers. Bi-Amp will lessen the burden on Power Amp im­pedance, so that back electromotive force between Low and
Mid/High signal can be lessen, we can expect drastic im­provement on sound quality.

ENGLISH

CD Player

Bi-Amp connection

Power-Amp

Pre-Amp

Power-Amp

Speaker system

Mid/High
speaker unit

Low speaker
unit

Caution

In the event of this connection (Control Amp SC-7S1 is
<Stero>mode), SC-7S1 and MA-9S1 can be wired by
Unbalanced connection only.

7

ATTENUATOR

dB

UNBALANCED

BALANCED

INPUT

-



6

3

9

12

0

ATTENUATOR

dB

UNBALANCED

BALANCED

INPUT

-



6

3

9

12

0

REMOTE

CONTROL

PRE OUT

INPUT

REC
OUT

BI-AMP

STEREO

ID NO.

ATTENUATOR

dB

UNBALANCED

BALANCED

INPUT

-



6

3

9

12

0

ATTENUATOR

dB

UNBALANCED

BALANCED

INPUT

-



6

3

9

12

0

REMOTE
CONTROL

PRE OUT

INPUT

OUT

AMP

BI-AMP

STEREO

ID NO.

ID NO.

ID NO.

4. Connections

Connection 3 Complete Bi-Amp connection

ENGLISH

：Signalflow

(Speaker system needs to comply with Bi-Amp connection)

SACD Player / CD Player

CD Recorder / Tape Deck

5

4

6

3

7

2

8

1

9

10

POWER

0

ANALOG

OUTPUTS

UNBALANCED

LEFT

RIGHT

L

BALANCED

1 1

To connect analog output
Lch of FM tuner, VCR.

To connect analog output
Rch of FM tuner, VCR.

INPUT

ANALOG

R

OUTPUT

ID NO.

ID NO.

1

REMOTE
CONTROL

2

3

Setting 1

4

5

6

INPUT

BALANCED

ID NO.

1

2

IN

3

4

5

6

OUT

MODE

BI-AMP

STEREO

MODE

A

CH

BI­AMP

B

CH

SC-7S1

FOR R ch

BI-AMPSTEREO

PUSH

PUSH

PUSH

PUSH

SACD/CD

Bch can't
be used.

1 LINE 2

TAPE

REC

PRE OUT

OUT

UNBALANCED

21

REMOTE

BALANCED

CONTROL

IN

OUT

or or

REC

INPUT

BALANCED

1 LINE 2

SACD/CD

PUSH

PUSH

A

CH

BI­AMP

PUSH

PUSH

B

CH

SC-7S1

For L ch

Bch can't
be used.

TAPE

PRE OUT

OUT

UNBALANCED

BALANCED

21

Setting BI-AMP

1

Setting 2

ID NO.

1

2

3

4

5

6

MODE

BI-AMP

STEREO

MODE

Setting BI-AMP

2

3

4

5

6

BI-AMPSTEREO

oror

MA-9S1 MA-9S1

For L ch MF/HF For R ch MF/HF

(

)

-

ATTENUATOR

dB

0

--3

--6

--9

--12

-

∞∞

INPUT

BALANCED

UNBALANCED

PUSH

1 2

SPEAKERS

1

2

BALANCED

(

)

-

ATTENUATOR

dB

0

--3

--6

--9

--12

-

∞∞

INPUT

UNBALANCED

PUSH

1 2

1

SPEAKERS

2

or or

MA-9S1 MA-9S1

For L ch For R ch

(

)

-

ATTENUATOR

dB

0

--3

--6

--9

--12

-

∞∞

INPUT

BALANCED

UNBALANCED

PUSH

1 2

SPEAKERS

1

2

BALANCED

(

)

-

ATTENUATOR

dB

0

--3

--6

--9

--12

-

∞∞

INPUT

UNBALANCED

PUSH

1 2

1

SPEAKERS

2

8

4. Connections

This connection can have options i,e, In-between 2 Un-balanced terminals or balanced terminals are
possible to wire SACD/CD and Control Amp. And Contol Amp with Power Amp.
Select either way of connection.

■ Complete Bi-Amp connection

Enhance the connection 2, by having one more control Amp.
SC-7S1, this is a wiring <Complete Bi-Amp connection> which
separates Mid/High (MF/HF) signal and Low (LF) signal from
Pre-Amp section. In this event, SC-7S1 is used as Monaural
Amps. And separate Left/Right channels from output termi­nal of CD players. As a result, influences between L channel
and R channel Mid/High signal and Low signal will be elimi­nated.

ENGLISH

CD Player

Complete Bi-Amp connection

Pre-Amp

Pre-Amp

Power-Amp

Power-Amp

Speaker system

Mid/High
speaker unit

Low Speaker
unit

By connection with remote cabel, maiximamly 6 pcs can be
interlock operated.

Caution

In the event of setting mode switch as <Bi-Amp>, B chan­nel input can't be used.

9

4. Connections

■ Installing the SACD multi-channel

ENGLISH

audio speakers

In order to enjoy SACD multi-channel sound with the best
possible acoustics, it is recommended that the speaker sys­tems be laid out in compliance with the ITU-R BS.775-1 rec­ommendation which is a standard formulated by the Interna­tional Telecommunication Union (ITU).
SACD multi-channel discs are recorded and mixed in such a
way that they will achieve the optimum effects when the
speaker systems are laid out as per the ITU-R BS.775-1 rec­ommendation.

• On SACD multi-channel discs, the music signals are ba­sically recorded using 5 channels (or 3, 4 or 6 channels
in some cases). In some instances, however, LFE (for
the sub woofer) is recorded as a sixth channel.
Each disc indicates how many channels have been re­corded on it.

• The basic settings are 3 speakers for front and 2 for back
since multi-channel discs have basically 5 channels
The 2-front, 1-center, and 2-surround speakers should
be set on the circle from the listening point as shown
below.
When you use different sizes of speakers, please adjust
the volume balances.

• The location of the sub-woofer in the picture is just to you
a patter of settings. Sub-woofer can be located any place
in your room. (See the users manual of your sub-woofer.)

■

(ITU) International Telecommunication
Union

The ITU is a special organization of the United Nations. It
consists of a number of organs, one of which is the Radio
Broadcasting Section.
ITU-R BS in the recommendation which consists of standards
relating to broadcasting (audio) operations, one of which is
the ITU-R BS.775-1 which governs “multi-channel stereo
sound systems.”

Front speaker

Rear speaker

(Left Surround)

Sub-woofer

(Left)

approx. 110° approx. 110°

Center
speaker

60°

Reference listening

position

Front speaker
(Right)

Rear speaker
(Right Surround)

10

ATTENUATOR

(

­dB

)

UNBALANCED

BALANCED

INPUT

12

SPEAKERS

2

1

-

∞

-

6

-

3

-

9

-

12

0

PUSH

ATTENUATOR

(

­dB

)

UNBALANCED

BALANCED

INPUT

12

SPEAKERS

2

1

ATTENUATOR

(

­dB

)

UNBALANCED

BALANCED

INPUT

12

SPEAKERS

2

1

-

∞

-

6

-

3

-

9

-

12

0

-

∞

-

6

-

3

-

9

-

12

0

PUSH PUSH

ATTENUATOR

(

­dB

)

UNBALANCED

BALANCED

INPUT

12

SPEAKERS

2

1

ATTENUATOR

(

­dB

)

UNBALANCED

BALANCED

INPUT

12

SPEAKERS

2

1

-

∞

-

6

-

3

-

9

-

12

0

-

∞

-

6

-

3

-

9

-

12

0

PUSH PUSH

POWER

STANDBY

For front

L ch / R ch

MA-9S1

For L ch

SC-7S1

For front center
Sub Woofer

SC-7S1

For Sorround

L ch / R ch

SC-7S1

REMOTE

CONTROL

PRE OUTINPUT

BALANCED

REC
OUT

TAPE

1LINE2

SACD/CD

BALANCED

A

BI­AMP

21

UNBALANCED

IN

OUT

MODE

BI-AMPSTEREO

6

5

4

3

2

CH

B

CH

PUSH

PUSH

ID NO.

PUSH

PUSH

1

REMOTE

CONTROL

PRE OUTINPUT

BALANCED

REC
OUT

TAPE

1 LINE 2

SACD/CD

BALANCED

A

BI­AMP

21

UNBALANCED

IN

OUT

MODE

BI-AMPSTEREO

6

5

4

3

2

CH

B

CH

PUSH

PUSH

ID NO.

PUSH

PUSH

1

REMOTE
CONTROL

PRE OUTINPUT

BALANCED

REC
OUT

TAPE

1 LINE 2

SACD/CD

BALANCED

A

BI­AMP

21

UNBALANCED

IN

OUT

MODE

BI-AMPSTEREO

6

5

4

3

2

CH

B

CH

PUSH

PUSH

ID NO.

PUSH

PUSH

1

FRONT R FRONT L SURROUND R SURROUND L SUB-WOOFER

MULTI CHANNEL AUDIO OUT

CENTER

MA-9S1

For R ch

MA-9S1

For front center ch

MA-9S1

For surround L ch

MA-9S1

For surround R ch

MODE

Setting 1

6

5

4

3

2

ID NO.

1

BI-AMPSTEREO

Setting STEREO

MODE

BI-AMPSTEREO

Setting STEREO

MODE

BI-AMPSTEREO

Setting STEREO

6

5

4

3

2

ID NO.

1

Setting 3

6

5

4

3

2

ID NO.

1

Setting 2

ororor or

Active (Powered)
Sub-Woofer

or

：Signal flow

SACD Multi Channel Player etc.

4. Connections

Connection 4 5.1ch multi-channel connection This Connection is standard for Multi-channel sound source. Realize the high quality sound acoustic for the professional Home

theatre and pure multi channel SACD. The whole system 5.1 ch is controlled by 3 units of SC-7S1 connected operation.

The system can be enhanced to

●

<3 units of SC-7S1 + 10 units of MA-9S1 + Active sub-woofer>

●

<6 units of SC-7S1 + 10 units of MA-9S1 + Active sub-woofer>

Caution

●

In case Active (powered) sub-woofer is used for LFE, please set-up wiring after perusal of Instruction manual.

LFE (Low frequency Effect) is the channel for Low Frequency only.

●

In case Passive sub-woofer is used for LFE, Monaural power Amp such as MA-9S1is required to drive it.

ENGLISH

This connection style can have options i,e, In-between 2 Un-balanced terminals or
balanced terminals to wire Control Amp. and Power Amp.
Select either way of connection.

11

5. Name and funtion

BALANCED

SACD

/

CD

LINE 1

DISPLAY

ATT

LINE 2

TAPE

A

SYNC B

input selector

power

stereo

control amplifier sc-7s1

volume

q

r

uw yte

A

SYNC B

I

II

IIIIV

max.

min.

00.0dB

-0.5dB

-1.0dB

-99.0dB

-99.5dB

-100.0dB

-∞

0.5 dB step

Front panel

ENGLISH

q Power switch

The switch to on/off the power. Press the switch, the power is
on, and indicator of input selector will light-on for source se­lected. SC-7S1 is ready approx. 8 sec. after power on. If
switch is pressed while power on, the power will be off and
indicators will be light-off.

w Remote control sensor

This is the window to receive control signal being sent from
remote controller.
How to use remote controller → p.14

e Input selector knob

The input selector knob to select input source for record/play.
Blue indicator is light on.
The last selected input source will be memorized before
switched off, and it will remain selected when switch is on
again. If the tape is selected as input source, the signal will
not be output to Rec out terminal.

r Display section

Indicate the setting status, volume level on this displayed.

12

Display section

t Volume knob

The knob to adjust volume.
Turning clockwise to volume up, counterclockwise to volume

I Power indicator

Indicator to show if power is on. When power is on, the blue
light will be turn on.

down. By turning knob slowly, the volume will be varied by

0.5dB step. By turning knob quickly, the variance will be big­ger. The last volume setting will be memorized before switched
off, and it will remain selecetd when switch is on again.

II Volume indicator

Indication of volume operated by remote controller or button.
3 second after the power is on, ID number which is set up by
ID no switch on rear. Then the volume is indicated by decay

y ATT (Attenuation) button, indicator

level.

The button to control volume at one touch. Once the button is
pressed, the volume will be decayed and volume indication
will be blinking and indicator above button will light on. If the
button is pressed once again, volume indication will turn back
the status before the button is not pressed.
Decay level is fixable to any of -20dB, -40dB, -60dB, -∞.
Attenuation function → p16

Turn clockwise the volume

u Display button, indicator

The button to on-off the volume indicator and internal light.

knob or press volume ▲
button of Remote.

Once the button is pressed, the volume indicator and internal
light will be off and indicator above button will be light on. If
the front button is operated, volume indicator and internal light
will be light on in 3 second, and turn off again.
The button is pressed once again, volume indicator and in­ternal light will be light on again, the indicator above button
will be turn off.

Turn counterclockwise the
volume knob or press vol­ume ▼ button of Remote.

In case the attenuate function is used or trim adjustment is
made, setting level will be indicated.
Error code will be indicated if there is error on connection,
settings while several SC-7S1 are connected.
Error message → p20

III A/B CH Indicator

During trim adjustment, the indicator will be light on in accor­dance with adjusting channel.
Trim adjustment → p17

IV SYNC (Synchronized) Indicator

The indicator will be light on in accordance with ID number
setting or so on.

●

Green colour is light on:

ID No. is set up <1>.

●

Red colour is light on:

ID No. is set up 2–6 (several SC-7S1 are connected)

Operation by product or Remote controller will not be re­ceived.

●

Light off:

There is some error in remote connection.

●

Green or Red colour is flashed:

While trim is being adjusted.

When you use remote controller, please face it towards SC-7
while this indicator turns light or flashing in green.

Rear panel

ID NO.

5. Name and funtion

TAPE

REC
OUT

UNBALANCED

A

CH

BI­AMP

B

CH

BALANCED

PUSH

PUSH

PUSH

PUSH

SACD/CD

1 LINE 2

z bvc n , .mx

z Input Balanced terminal

The terminal to connect with balanced output terminal of
SACD, CD Players.
In case of Bi-Amp mode, Input terminal of B Channel can not
be used.
Balanced terminal → p5

x Input SACD/CD, Line 1, Line 2, Tape (Un-

balanced) terminal

The terminal to connect with output terminal of SACD, CD
Players.
In case of Bi-Amp mode, Input terminal of B Channel can not
be used.

c Rec out terminal

The terminal to connect with input terminal of Recording equip­ment such as CD recorder.
In case of Bi-Amp mode, the signal input to A channel will be
out to both of A/B channels.

v Pre out Unbalanced 1,2 terminal

The terminal to connect with Unbalanced input terniminal of
Power Amp.
In case of Bi-Amp mode, the signal input to A channel will be
out to both of A/B channels.

PRE OUTINPUT

21

BALANCED

BALANCED
CONNECTION1

REMOTE

CONTROL

OUT

COLD2

ID NO.

1

3 HOT

MODE

(

)

+

2

3

4

5

6

AC IN

BI-AMPSTEREO

IN

(-)

COLD

n Remote control In/Out terminal

To connect several units of SC-7S1 by attached remote cable,
and connectedly operate them.
In terminal is for receiving control signal, Out terminal is for
sending control signal.

m ID No. switch

Whilst several SC-7S1 are connected, to set up respective ID
No. to distinguish each products.
When only 1 unit is used, the No. will be set 1. Initial setting is
<1>.
Trim adjustment in case of several units of SC-7S1 → p18

, Mode switch

The switch to change Stereo mode and Bi-Amp mode. Initial
setting is <stereo>.

●

In case SC-7S1 is used by normal 2 channel.

Setting <Stereo> mode.

●

In case of complete Bi-Amp connection by 2 units of SC­7S1.
Setting <Bi-Amp> mode.
In case of <Bi-Amp> mode, the signal input from A chan­nel will be out to both of A/B channels through Pre-out
terminal and Rec out terminal.
Then, input terminal on B channel can not be used.

ENGLISH

b Pre out Balanced terminal

The terminal to connect Balanced input terminal of Power
Amp.
In case of Bi-Amp mode, the signal input to A channel will be
out to both of A/B channels.

. AC IN socket

Connect to a household power outlet.

13

5. Name and funtion

Remote controller

ENGLISH

a
f

h j

BALANCED

LINE 1 LINE 2

TAPE

TRIM

SACD/CD

ATTEXITTRIM MODE

VOLUME

■ For use of Remote controller

●

Loading batteries

Before using the supplied remote control unit for the first
time, load the batteries in the remote control unit. The
batteries provided are used to verify the operations of the
remote control unit only.

1 Remove the battery cover which is found on the back

side of the remote control unit.

s

2 Load the two new size “AAA” batteries inside the battery

d

BA

g

compartment while taking care to align their polarities
correctly with the polarity markings (
with ).

with and

3 Push the cover on the back side in the direction of the

arrow to close.

RC-7S1SC

a Trim Mode

Button to switch to Trim mode for trim adjustment.

s Exit button

Button to finish Trim mode after Trim adjustment.

d ATT (Attenuation) button

Button to attenuate at one touch.

f Trim-A ▲/▼

(Trim A Channel up/down) button
Button to fine-tune the output level of A ch by Trim adjust­ment.

g Trim-B ▲/▼

(Trim B Channel up/down) button
Button to fine-tune the output level of B ch by Trim adjust­ment.

h Input selector button

Button to select input source.

j Volume ▲/▼

(Volume up/down button)
Button to adjust volume.

14

●

Operatable range of Remote controller

Operate the remote control unit (RC-7S1SC) within a dis­tance of approx. 5 m from the infrared signal reception
window (remote sensor) on the front of the SC-7S1.
Remote control operation may not be possible if the re­mote control unit’s transmitter is not pointing in the direc­tion of the remote sensor or if there is an obstruction be­tween the transmitter and the remote sensor.

Approx. 5m

60°

●

Caution

Do not allow direct sunlight, an inverter fluorescent light
or other strong source of light to shine onto the player’s
infrared signal reception window (remote sensor). Other­wise, the operation of the remote control unit may be dis­abled.
Bear in mind that operating the remote control unit may
cause other devices operated by infrared rays to be op­erated by mistake.
The remote control unit cannot be operated if the space
between the controller and the player’s remote sensor is
obstructed.
Do not place any objects on top of the remote control
unit. Doing so may cause one or more buttons to be held
down which will cause the batteries to run down.

input

selector

power

stereo

control

amplifier

volume

input

selector

power

stereo

control

amplifier

volume

6. Standard operation

■ How to Play

BALANCED

SACD

/

CD

LINE 1

LINE 2

TAPE

input

selector

w

stereo

control

A

qy etw

BALANCED

LINE 1 LINE 2

TAPE

amplifier

SYNC B

power

TRIM

SACD/CD

q Power on SC-7S1. In case several SC-7S1 are con-

nected, please power on from smaller No. of ID to bigger
No.

sc-7s1

Once power is on, Front display and input indicator for
currently selected source will be light on.

ATT

DISPLAY

volume

ATTEXITTRIM MODE

POWER
Indicator

SYNC B

A

Input Source

Indicator

BALANCED

TAPE

ENGLISH

SACD

/

CD

LINE 1

LINE 2

Approx. 8 second after power on, the Sound will be mute

BA

mode and released later.

w Select the input source by input selector button or Input

select button on the Remote controller.

e It is recommended to power on after setting volume to -

by the button of ▲/▼ of volume button or Remote con­troller.

VOLUME

et

r Play music by operating equipments such as CD Play-

ers.

t Adjust the volume by the button of ▲/▼ of SC-7S1 or

Remote controller.

y If the display button is pressed, the volume indicator will

be turn off.

■ How to record

BALANCED

/

CD

SACD

LINE 1

LINE 2

TAPE

input

selector

BALANCED

LINE 1 LINE 2

w

TAPE

stereo

control

TRIM

SACD/CD

q Power on SC-7S1.
w Select the input source by input selector button or Input

select button on the Remote controller.

amplifier

sc-7s1

e Play music by operating equipments such as CD Play-

ers.

SYNC B

A

ATT

power

DISPLAY

volume

r Record music by operating recorder such as CD-R which

is connected to Rec out terminal.

If <Tape> is selected for input souce, music can not be
recorded. It's because the analog signal is not output to
Rec out terminal.

qw

ATTEXITTRIM MODE

BA

VOLUME

15

7. How to operate function and how to set up

volume

volume

volume

volume

volume

-40dB

-60dB

-∞

-20dB

■ Attenuate function

ENGLISH

With one touch, the volume can be down. Convenient when
you want volume down quickly.

ATT button on SC-7S1 or Remote controller can decay vol­ume.

DISPLAY

Unit

ATT

Remote Controller

or

Then volume is indicated, the indicator above ATT button will
be light on.

control amplifier sc-7s1

stereo

SYNC B

A

power

DISPLAY

ATT

e Press ATT button, attenuation level will be changed ev-

ery each press.

DISPLAY

ATTEXIT

ATT

Attenuat function Setting of level

Press ATT button

Light

r Unless the button is pressed within 2 seconds, attenua-

tion level will be fixed. Once the level is fixed, the indica­tion will turn back to volume indication.

Initial set up is -20dB, you can change to -20dB, -40dB,

-60dB, - .
In case of - , attenuator doesn't work.

■ How to set up attenuation level

q Press ATT button more than 2 second.

DISPLAY

w Indicator above ATT button will flash, volume indication

will be changed to attenuation level setting.

control amplifier sc-7s1

stereo

SYNC B

A

power

ATT

Flash

DISPLAY

ATT

The setting of level is memorized even after power off, remain
until power on again.

16