McIntosh MX-130 Owners manual
MX130
A/V TUNER
CONTROL
CENTER
MX130
A/V TUNER
CONTROL
CENTER
IMPORTANT
SAFETY
INSTRUCTIONS
THESE
INSTRUCTIONS
ARE TO PROTECT
YOU AND THE
MclNTOSH
INSTRUMENT.
BE SURE TO
FAMILIARIZE
YOURSELF
WITH THEM
1. Read all instructions - Read the safety and operating instructions before operating the instrument.
2. Retain Instructions - Retain the safety and operating instructions for future reference.
3. Heed warnings - Adhere to warnings and operating instructions.
4. Follow Instructions - Follow all operating and use instructions.
WARNING:
TO
REDUCE RISK
OF
FIRE
OR
ELECTRICAL
SHOCK,
DO NOT
EXPOSE THIS
IN-
STRUMENT TO RAIN OR MOISTURE.
5. Power Sources - Connect the power supply only to the type described in the operating instructions
or as marked on the unit.
6. Power-Cord Protection - Route power-supply cords 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 instrument.
7. Ventilation - Locate the instrument for proper ventilation. For example, the instrument should not
be placed on a bed, sofa, rug, or similar surface that may block ventilation openings; or, placed
in a built-in installation, such as a bookcase or cabinet, that may impede the flow of air through
the ventilation openings.
8. Heat - Locate the instrument away from heat sources such as radiators, heat registers, stoves, or
other appliance (including amplifiers) that produce heat.
9. Wall or Cabinet Mounting - Mount the instrument in a wall or cabinet only as described in the owner's
manual.
10. Water and Moisture - Do not use the instrument near water - for example, near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc.
11. Cleaning - Clean the instrument by dusting with a dry cloth. Clean the panel with a cloth moistened
with a window cleaner.
12. Object and Liquid Entry - Do not permit objects to fall and liquids to spill into the instrument through
enclosure openings.
13. Power Lines - Locate any outdoor antenna away from power lines.
14. Outdoor Antenna Grounding - If an outdoor
antenna is connected to the antenna terminal, be sure the antenna system is
grounded to provide some protection against
voltage surges and built up static charge.
In the U.S.A., section 810 of the National
Electrical Code, ANSI/NFPA No. 70-1978,
provides information on the proper ground
for the mast and supporting structure,
ground for the lead-in wire to an antenna
discharge unit, and size of ground conduc-
tors, location of antenna-discharge unit, connecton to grounding electrodes, and requirements for the grounding electrode.
For ground wire:
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 240, PART H)
a) Use No. 10 AWG (5.3mm2) copper No. 8
AWG (8.4 mm2) aluminum, No. 17 AWG (1.0 mm2) copper-clad steel, bronze wire, or larger as ground
wire.
b) Secure antenna lead-in and ground wires to house with stand-off insulators spaced from 4 feet
(1.2 meters) to 6 feet (1.83 meters) apart.
c) Mount antenna discharge unit as closely as possible to where lead-in enters house.
d) Use jumper wire not smaller than No. 6AWG (13.3 mm2) copper or equivalent when separate antenna
grounding electrode is used.
15. Nonuse Periods - Unplug the power cord from the AC power outlet when left unused for a long period
of time.
16. Damage Requiring Service - Service must be performed by qualified service personnel when:
A. The power supply cord or the plug has been damaged; or
B. Objects have fallen, or liquid has been spilled into the instrument; or
C. The instrument has been exposed to rain; or
D. The instrument does not appear to operate normally or exhibits a marked change in performance;
or
E. The instrument has been dropped, or the enclosure damaged.
17. Servicing - Do not attempt to service beyond that described in the operating instructions. All other
service should be referred to qualified service personnel.
GROUND
ANTENNA
LEAD IN WIRE
ANTENNA
DISCHARGE UNIT
(NEC
SECTION810-20)
GROUNDING
CONDUCTORS
(NEC SECTION 810-21)
CLAMPS
Copyright 1993 © by
Mclntosh Laboratory Inc.
2
18. Grounding or Polarization - Do not defeat the inherent design features of the polarized plug. Nonpolarized line cord adaptors will defeat the safety provided by the polarized AC plug.
19.
CAUTION:
WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN
BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.
ATTENTION:
FICHE POLARISEE AVEC UN PROLONGATEUR, UNE PRISE DE COURANT OU UNE AUTRE
SORTIE DE COURANT, SAUF SI LES LAMES PEUVENT ETRE INSEREES A FOND SANS EN
LAISSER AUCUNE PARTIE A DECOUVERT.
Note to CATV system installer:
This reminder is provided to call the CATV system installer's attention to Article 820-40 of the NEC tht
provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the gounding system of the building, as close to the point of cable entry as practical.
The lightning flash with arrowhead, 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.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
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 appliance.
TO
PREVENT ELECTRICAL
POUR PREVENIR
CAUTION:
REMOVE COVER (OR BACK). NO USER-SERVICABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED PERSONNEL.
SHOCK
LES
CHOCS
TO
PREVENT
DO NOT USE
ELECTRIQUES
THE
RISK
OF
ELECTRIC SHOCK,
THIS
(POLARIZED) PLUG
PAS
UTILISER CETTE
DO NOT
IMPORTANT
SAFETY
INSTRUCTIONS
THESE
INSTRUCTIONS
ARE TO PROTECT
YOU AND THE
MclNTOSH
INSTRUMENT.
BE SURE TO
FAMILIARIZE
YOURSELF
WITH THEM
3
A
THANK
YOU
Your decision to own this piece of Mclntosh Stereo Equipment ranks you at the very top
among discriminating music listeners. You now have "The Best". The Mclntosh dedication
to "Quality", is assurance that you will receive thousands of hours of musical enjoyment from
this unit.
Please take a short time to read the information in this manual. We want you to be as familiar
as possible with all the features and functions of your new piece of Mclntosh. This will ensure that you receive all the performance benefits this instrument can offer you, and that
it will become a highly valued part of your home music system.
The serial number, purchase date, and Mclntosh Laboratory Service Contract number are
important to you for possible insurance claim or future service. Record this information here.
Serial Number Purchase Date
Service Contract Number
Upon application, Mclntosh Laboratory provides a Service Contract to the original purchaser.
Your Mclntosh Authorized Service Agency can expedite repairs when you provide them with
the Service Contract.
TABLE OF
CONTENTS
SERVICE CONTRACT 5
INTRODUCTION 6, 7
HOW TO INSTALL THE MX130 7
HOME THEATER AUDIO CHANNEL CONFIGURATION WITH
DOLBY PRO LOGIC™ AND HOME THX® AUDIO 8, 9
FRONT PANEL CONTROLS, SWITCHES AND PUSHBUTTONS .9, 10, 11, 12, 13, 14, 15
HOW TO PROGRAM AM AND FM STATION PRESETS ". 15
MX 130 HAND HELD REMOTE CONTROLLER 16, 17
THE REAR PANEL AND HOW TO MAKE CONNECTIONS ... .18, 19, 20, 21, 22, 23, 24
HOW TO SET UP YOUR MclNTOSH HOME THEATER 25
HOME THEATER LAYOUT ... 26
HOOKUP DIAGRAM 27
MclNTOSH HOME THEATER SURROUND SOUND LEVEL CALIBRATION . .28, 29, 30, 31
SPECIFICATIONS 32, 33, 34
CUSTOM INSTALLATION DRAWING 35
FOLD OUT DRAWINGS OF FRONT AND BACK PANELS . . 36
4
TAKE ADVANTAGE OF 3 YEARS OF CONTRACT SERVICE. . .
FILL IN THE APPLICATION NOW.
Your MX130 Audio/Video Tuner Control Center will give you many years of satisfactory performance. If you have any questions, please contact,
Mclntosh Laboratory Inc.
2 Chambers Street
Binghamton, New York 13903-2699
Phone: 607-723-3512
An application for A THREE YEAR SERVICE CONTRACT is included with this manual.
The terms of the contract are:
1- If the instrument covered by this contract becomes defective, Mclntosh will provide all parts,
materials, and labor needed to return the measured performance of the instrument to the
original performance limits free of any charge. The service contract does not cover any
shipping costs to and from the authorized service agency or the factory.
2. Any Mclntosh authorized service agency will repair all Mclntosh instruments at normal
service rates. To receive the free service under the terms of the service contract, the service contract certificate must accompany the instrument when taken to the service agency.
MclNTOSH
THREE YEAR
SERVICE
CONTRACT
3. Always have service done by a Mclntosh authorized service agency. If the instrument is
modified or damaged as a result of unauthorized repair the service contract will be canceled.
Damage by improper use or mishandling is not covered by the service contract.
4. The service contract is issued to you as the original purchaser. To protect you from
misrepresentation this contract cannot be transferred to a second owner.
5. Units in operation outside the United States and Canada are not covered by the Mclntosh
Factory Service Contract, irrespective of the place of purchase. Nor are units acquired
outside the USA and Canada, the purchasers of which should consult with their dealer
to ascertain what, if any. service contract or warranty may be available locally.
5
INTRODUCTION
Mclntosh Laboratory has earned a world wide reputation tor the technical superiority of
its contributions to high quality sound reproduction. The advanced level of Mclntosh product
innovations has integrity proven by time. The legendary reliability of Mclntosh products is a
matter of record since 1949. The "Classic Mclntosh" design is acknowledged as the most
outstanding in the audio industry.
Mclntosh products are designed to be maximum "User Friendly". Anyone can enjoy using
them. Ease of maintenance is another Mclntosh design philosophy that contributes to the
long useful operating life of all Mclntosh products.
The MX130, A/V Tuner Control Center is a full featured remote control center tor a complete Mclntosh Home Theater System. It provides six audio channels with the added features
of video switching.
The MX130 includes all the required Dolby Pro Logic™ decoding circuits to reproduce
Dolby Surround™ encoded movie soundtracks.
You also can enjoy the enhanced movie sound track reproduction possible from Home
THX® Audio processing circuits by having your Mclntosh dealer install the optional Mclntosh
THX-M Module in your MX130. The Home THX® Audio System is a licensing program of
Lucasfilm Ltd., which defines new technologies and quality standards for accuracy in home
theaters. The MX130 includes a built-in noise generator and the controls necessary for accurate volume level calibration of all six channels when setting up a home theater.
The MX130 has the added feature of the Mclntosh designed "HALL" signal processing
circuits. The "HALL" feature allows you to enhance the realism of two channel program
sources such as a compact disc. The Left and Right signals are reproduced through the Left
and Right Front loudspeakers. The same signals are combined and fed to the center channel
loudspeaker as mono center fill. The combined left and right are also fed to a digital processor with variable time delay for the surround loudspeakers. If a subwoofer is used in the
system, it will also operate in the "HALL" mode.
The MX130 includes a 25-pin connector on the rear panel to fit a single subrniniature "D"
computer type cable that fits a similar connector on a Mclntosh MC7106 six channel power
amplifier. This cable carries all six audio signals and AC power control to the MC7106 for
a complete Mclntosh Home Theater System.
The MX 130 has built-in capability for remotely controlling two separate listening areas. The
LISTEN signals are defined as Area "A" which is usually the main area where all the equipment is located. The RECORD signals are available at a pair of outputs marked AREA B OUT,
and can be used for a remote area with its own dedicated power amplifier and pair of speakers.
The desired program can be selected in Area "B" with the MX130 Hand Held Remote Controller transmitting to a wall mounted IR sensor, or from a WK-1 or WK-2 keypad.
Data ports are provided for twelve audio and video remote controlled accessories. This
feature allows you to control a compatible unit by transmitting with its hand held remote con-
troller directly to a MX 130 sensor. Another data port connects to the optional Mclntosh HC-1
Home Controller to allow control of accessories or appliances.
The optional Model RCT-1, Remote Control Translator is also available to interconnect with
the MX130. The RCT-1 is a learning device which will allow the MX130 to remotely control
other brands of products.
The convenience of MX 130 remote control operation is enhanced by its capability to directly
interface with the Mclntosh CR10 Remote Control System. The CR10 can add an additional
four remote areas of control.
The MX130 includes twelve pairs of high level audio inputs in addition to the built-in AM-
6
FM tuner. Eight individual AM and FM station presets are available. Seven inputs are for traditional audio program sources, including the built-in Tuner. A pair of low level inputs is included for a moving magnet phono cartridge. Six of the audio inputs are for the audio portion
of an audio/video signal. Six matching standard and S Video inputs are also included. The
MX130 will simultaneously switch the six video and corresponding audio signals.
The MX130 uses digital Logic integrated circuits to drive Electromagnetic Switches for all in-
put, output and operating functions. This is the most reliable and distortion free switching available.
Separate Record and Listen circuits allow recording from one source while listening to
another with audio or audio/video signals. A continuously variable Active Loudness control
allows loudness compensation to be selected for any setting of the volume control. The
Loudness control circuit elements are removed from the circuit path when the control is in
the flat or fully counterclockwise position.
Bass and Treble tone controls provide 12dB of boost or cut. At the center "Flat Response"
or detent position of the tone controls, all tone control circuit elements are removed from
the signal path. Other features include a precision digitally driven six channel volume control, front panel digital volume level indicator and Balanced outputs for the Left and Right
output signals.
Front panel Camcorder inputs and a headphone output are also provided. These connections are hidden behind a motor driven door which is opened and closed by a convenient
front panel Access pushbutton. The Mclntosh MX130 "Classic Mclntosh" all glass front panel
has all control, switch and pushbutton nomenclature illuminated.
The Mclntosh Home THX Audio licensed MX130 A/V Control Center, MC7106 six channel
power amplifier and a set of Mclntosh HT Series Home Theater loudspeakers will make a
perfect "Mclntosh Quality" Home Theater system. Your Mclntosh dealer can assist you
in setting up all the various components of your Mclntosh Home Theater to ensure you will
receive the best possible performance.
DOLBY SURROUND, PRO LOGIC and the Double-D Symbol are trademarks of Dolby Licensing Laboratory.
Home THX" Audio is a trademark of Lucasfilm Ltd.
INTRODUCTION
The MX130 can be placed upright on a table or shelf, standing on its own plastic feet. It
also can be installed in an optional Mclntosh L74 equipment cabinet. Follow the mounting
instructions enclosed with the L74 cabinet.
The MX 130 can be custom installed in a piece of furniture or cabinet of your choice. The
required panel cutout and unit dimensions are shown on a page near the back of this manual.
Always provide adequate ventilation for your MX130, even though it develops very little
heat. Cool operation insures the longest possible operating life for any electronic instrument.
Do not install your MX 130 directly above a heat generating component such as a high power
amplifier. In a system stack, the power amplifier should always be at the top. If all the components are installed in a single cabinet, a quiet running ventilation fan can be a definite asset
in maintaining all the system components at their coolest possible operating temperatures.
A custom cabinet installation should provide the following recommended minimum spacing dimensions for cool operation. Allow at least 1-1/2 inches (3.8cm) above the unit so airflow
is not obstructed. Allow 17-1/2 inches (44.5cm) depth behind the mounting panel, which includes clearance for connectors. Allow 1-1/8 inches (2.9cm) in front of the mounting panel
for knob clearance.
HOW TO
INSTALL
THE
MX130
7
HOME THEATER
AUDIO
CHANNEL
CONFIGURATION
WITH DOLBY
PRO LOGIC™
AND HOME
THX® AUDIO
Ail movies produced by major film companies have soundtracks that are encoded with
Dolby Surround Sound. The decoding process is called Dolby Pro Logic and results in four
separate soundtracks which are Left Front, Center, Right Front, and Surround sound. The Dolby
Pro Logic decoded surround signals are monaural, but are reproduced by a non directional
loudspeaker on each side of the listening area. The Dolby Surround concept is the heart of
the Home Theater audio and video experience.
Dolby Surround encoding is also used for MTS and satellite broadcasts as well as other
audio-only program sources such as compact discs. Use the MX130 CINEMA 1 mode with
its Dolby Pro Logic processing to enjoy listening to these other program sources.
Home THX Audio circuits further process all the Dolby Pro Logic decoded signals including
the generation of separate spatially expanded left and right surround signals. Home THX Audio
also specifies that a subwoofer should be used. A Home THX Audio system therefore requires
six discrete audio channels and six corresponding loudspeakers.
The MX130 provides six audio channels to take full advantage of the exciting sound
reproduction capabilities of a Dolby Surround encoded movie soundtrack. When the Mclntosh
THX-M module is installed in the MX130, the audio enhancements possible by Home THX
Audio signal processing also will be available.
Descriptions of the functions of each channel of a Dolby Surround soundtrack as decoded
by Dolby Pro Logic and the addition of Home THX Audio processing, will help you in better under-
standing the use of the various controls, switches and operating procedures of your MX130.
DOLBY SURROUND, LEFT FRONT and RIGHT FRONT
These two channels are stereo channels in the traditional sense. The left and right signals
provide ambience, depth and spaciousness for reproduction of music and sound from a Dolby
Pro Logic decoded movie soundtrack. The front channels also reproduce similar information
from a two channel stereo source such as a compact disc or audio tape.
DOLBY SURROUND, CENTER FRONT
Dolby Surround movie soundtracks are encoded with a Center channel, which also includes
dialog information, to increase the realism of the home theater experience. The Dolby Pro
Logic decoded Center channel is reproduced through a loudspeaker placed in the front center
location, either above or below the viewing screen. A Center loudspeaker provides greater
intelligibility of a movie dialog and also contributes to the overall sound realism.
DOLBY SURROUND, LEFT and RIGHT
Dolby Surround movie soundtracks are encoded with a specially processed surround sound
signal. When decoded by Dolby Pro Logic processing circuits, the surround sounds can include all types of acoustical information and sound effects that enhance the listening enjoyment of a movie. The Dolby Pro Logic decoded surround sound channel is monaural, however,
it is reproduced through two separate loudspeakers placed on the left and right walls of the
listening area. The surround loudspeakers should radiate sound in a non directional manner,
allowing the listeners to hear only the sound that is reflected off the wall surfaces and not
directly from the loudspeakers. Properly installed surround loudspeakers will provide ambience,
and should not distract from the direct sound reproduced by the front loudspeakers.
HOME THX AUDIO SURROUND CHANNELS
Home THX Audio circuits add additional processing to all the original Dolby Pro Logic
decoded signals. The monaural surround signal is further processed into two separate spatially
expanded left and right surround signals.
There are specific Home THX Audio requirements for surround sound level calibration. This
8
information is included in the manual section "MclNTOSH HOME THEATER SURROUND
SOUND VOLUME LEVEL CALIBRATION."
SUBWOOFER
Home THX Audio spediciations require a subwoofer to be used in a home theater system.
A subwoofer loudspeaker is designed to reproduce only the lowest audio frequencies, which
are essentially non directional. The MX130 meets this requirement by combining the Left,
Right and Center channel signals and feeding them through a filter that allows only the bass
frequencies of 80Hz and lower to be fed to the subwoofer outputs. The non directional sound
characteristics of a subwoofer allow it to be placed in a wide range of room locations.
A well designed subwoofer will reproduce the low frequency music and sound effects present in today's action movie soundtracks with dramatic impact. Using a discretely placed
subwoofer also allows the optional use of slightly smaller front loudspeakers.
Detailed information on Home Theater loudspeaker setup is covered in the manual enclosed with your Mclntosh HT Series Home Theater loudspeakers.
HOME THEATER
AUDIO
CHANNEL
CONFIGURATION
WITH DOLBY
PRO LOGIC™
AND HOME
THX® AUDIO
The MX130 can be remotely controlled. Most of the operating functions performed
at the front panel, also can be done by the MX130 Hand Held Remote Controller. The
following information refers only to the front panel. Another section of this manual
explains the functions and operation of the MX130 Hand Held Remote Controller.
The last page of this manual folds out to show drawings of the front and rear panels
of the MX130. This will help you in identifying and locating the front panel controls,
switches, pushbuttons and the rear panel connectors and switches. The letters and
numbers on the drawings refer to the information that follows.
A. BASS AND TREBLE
Provide 12dB boost and cut, with neutral flat response at the center detent position. The
Bass and Treble controls affect the LEFT and RIGHT Balanced Outputs, the LEFT FRONT,
CENTER, RIGHT FRONT and SUBWOOFer Unbalanced Outputs. These are all Area "A" Outputs. The corresponding channels of the 6 CHANNEL OUTPUT connector are also affected.
The VCR1, VCR2, TAPE1, TAPE2 and Area "B" Outputs are not affected by the Bass and
Treble controls.
B. RECORD
Selects any of the 12 program signals that will feed to the TAPE 1, TAPE 2, VCR1. VCR2
and Area "B" Outputs.
Area "B" must first be turned ON in Area "B", by a keypad or remote controller
transmitting to an Area "B" sensor, before the Area "B" outputs will operate. Each
time Area "B" is turned on, TUNER is automatically selected at a volume level 50dB
below maximum.
The audio signals for SATellite, TV, Laser Video, VCR1, VCR2 and V-AUX will have their corresponding Video signals switched simultaneously. The selected video RECORD signals will
appear at the MONitor B, VCR1 and VCR2 and VIDEO Outputs. This allows the selected program signals to be fed to an external TV monitor, as well as to one or two VCR units for recording purposes.
All audio or video tape recording must be setup manually in Area "A" before a
FRONT
PANEL
CONTROLS
SWITCHES,
AND
PUSHBUTTONS
9
FRONT PANEL
CONTROLS,
SWITCHES
AND
PUSHBUTTONS
recording session. Always press the REC (Record) LOCK pushbutton to disable all Area
"B" remote sensors or keypads to avoid accidental recording disruption.
C. MODE (Selects the operating configuration)
MONO: All left and right channel signals are combined for Mono operation and fed to the
LEFT FRONT, RIGHT FRONT Balanced, Unbalanced and the corresponding 6 CHANNEL con-
nector outputs. The combined Mono signals of 80Hz and lower are also fed to the SUBWOOFER Output. The Subwoofer can be turned ON or OFF in MONO mode with the rear
panel SUB WOOF switch (28).
The Unbalanced CENTER Output can be activated in MONO by setting the rear panel
CENTER FILL Switch (27), to the ON position. This allows a Center channel loudspeaker to
be used during MONO operation.
STEREO: Left channel signals are fed to the LEFT FRONT Unbalanced and the LEFT
Balanced Outputs. Right channel signals are fed to the RIGHT FRONT Unbalanced and the
RIGHT Balanced Outputs. The Left and Right signals of 80Hz and lower are also combined
and fed to the SUBWOOFer Output. The Subwoofer can be turned ON or OFF in STEREO
mode with the rear panel SUB WOOF switch (28).
The Unbalanced CENTER Output, which contains the combined left and right channel
signals can be activated by setting the rear panel CENTER FILL Switch (27), to the ON position. This allows a Center channel loudspeaker to be used during STEREO operation.
HALL: ENHANCES TWO CHANNEL AUDIO SIGNALS. Left channel signals are fed to the
LEFT FRONT Unbalanced and LEFT Balanced Outputs. Right channel signals are fed to the
RIGHT FRONT Unbalanced and RIGHT Balanced Outputs. The Left and Right signals of 80Hz
and lower are also combined and fed to the SUBWOOFer Output. The Subwoofer can be turned
ON or OFF in HALL mode with the rear panel SUB WOOF switch (28). The combined Left
and Right audio signals are also fed to a digital processor, time delayed, and then fed to the
LEFT SURround and RIGHT SURround Outputs. The time delay can be adjusted by the front
panel DELAY (ms) Switch.
The Unbalanced CENTER Output can be activated in HALL mode by setting the rear panel
CENTER FILL Switch (27), to the ON position. This allows a Center channel loudspeaker to
be used in the HALL operating mode.
CINEMA 1: REPRODUCE DOLBY SURROUND, PRO LOGIC DECODED MOVIE
SOUNDTRACKS
Audio signals from a Dolby Surround encoded movie soundtrack are fed to the MX 130 Dolby
Pro Logic processing and decoding circuits which produce the following different outputs.
Left audio signals are fed to the LEFT FRONT Unbalanced and LEFT Balanced Outputs.
Right audio signals are fed to the RIGHT FRONT Unbalanced and RIGHT Balaned Outputs.
The Dolby Pro Logic processing circuits also decode the center channel signals which include dialog, and feed them to the Unbalanced CENTER Output. (For information on the three
optional modes of Center speaker operation, refer to the manual section describing the rear
panel CENTER SPEAKER switch.) The Dolby Pro Logic processed monaural surround sound
signals are fed to the LEFT Surround and RIGHT Surround outputs.
The Left, Right and Center signals of 80Hz and lower are also combined by the MX130
and fed to the SUBWOOFer Output. The Subwoofer output is always ON in CINEMA 1 mode,
and is not affected by the rear panel SUB WOOF Switch.
The Dolby Pro Logic Indicator on the MX130 front panel lights when the MODE Switch
10
is in CINEMA 1 position.
Dolby surround encoding is also used for MTS and satellite broadcasts as well as
other audio-only program sources such as compact discs. Use the MX130 CINEMA 1
mode with its Dolby Pro Logic processing to enjoy listening to these other program
sources.
CINEMA 2, HOME THX AUDIO: TO REPRODUCE DOLBY SURROUND, PRO LOGIC
DECODED MOVIE SOUNDTRACKS WITH HOME THX AUDIO ENHANCEMENT
The CINEMA 2 or Home THX Audio mode of operation is possible only when the
optional Mclntosh THX-M Module has been installed in the MX130.
The four Dolby Pro Logic processed output signals are fed to the Home THX Audio circuits
in the Mclntosh THX-M module for further processing and enhancement which produce the
following six outputs.
Left audio signals are fed to the LEFT FRONT Unbalanced and LEFT Balanced Outputs-
Right audio signals are fed to the RIGHT FRONT Unbalanced and RIGHT Balanced Outputs.
The processing circuits also feed center channel signals which include dialog, to the Un-
balanced CENTER Output.
(The rear panel CENTER SPEAKER switch must be in the LARGE THX position for
CINEMA 2 operation.)
The Dolby Pro Logic decoded monaural surround signals are then further processed into
separate spatially expanded left and right surround signals, which are fed to the LEFT Sur-
round and RIGHT Surround Unbalanced outputs.
The Left Front, Center and Right Front signals of 80Hz and lower are also combined by
the MX 130 and fed to the SUBWOOFer Output. The Subwoofer output is always ON in CINEMA
2 mode, and is not affected by the rear panel SUB WOOF Switch.
With the Mclntosh THX-M Module installed in the MX 130, the front panel Home THX Audio
Indicator lights when the MODE Switch is in CINEMA 2 position. The Dolby Pro Logic front
panel indicator stays lit in both CINEMA 1 and CINEMA 2 modes.
All signals fed to the six unbalanced outputs also are fed to corresponding pins
on the rear panel 6 CHANNEL OUTPUT connector.
FRONT PANEL
CONTROLS,
SWITCHES
AND
PUSHBUTTONS
UPPER DISPLAY WINDOW
D. SENSOR
The Infrared sensor that accepts control signals from the MX130 Hand Held Remote
Controller.
E. AM - FM
Indicates the broadcast band selected in TUNER mode.
F. SIGNAL
Indicates the relative signal strength of either an AM or FM broadcast signal.
G. STATION FREQUENCY
The numerical indication of the station frequency. AM indications are in Kilohertz and change
in 10KHz steps. FM indications are in Megahertz and change in 100KHz steps.
H. MPX
Indicates when the tuned FM station is broadcasting in multiplex stereo.
11
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