SM PRO AUDIO MPatch 5.1
Mpatch 5.1
surround-Sound monitor controller
SAFETY INSTRUCTIONS
CAUTION: To reduce the risk of electrical shock, do not remove the
cover or rear panel of this unit. No user serviceable parts inside. Refer
servicing to qualified personnel only.
WARNING: To reduce the risk of fire or electrical shock, do not expose
this equipment to rain or moisture.
All safety and operation instructions of this manual should be read and adhered
to before operating this equipment.
Retain Instructions: Please retain all safety and operating instructions for future reference.
Follow Instructions: All operation and user instructions should be followed.
Water, Liquid, and Moisture: The equipment should not be used near water, rain, or other
liquids. Make sure that no liquid can leak, spill, or otherwise seep into the equipment.
Ventilation: Please place the equipment so that no obstacles interfere with or impede the
flow of air through the ventilation openings.
Heat:The equipment should be situated away from heat sources such as heaters,
radiators, ovens, and other appliances that produce heat.
Power Source:Make sure your equipment is set to the correct voltage for the country in
which it will be used.
Grounding and Polarization:Precautions should be taken so that the equipment’s
electrical grounding or polarization is not defeated.
SM PRO AUDIO MPatch 5.1
Power Cord Protection:Power supply cords should be routed so that they are not likely to
be walked on, pinched, damaged, worn, or rubbed by any other device or obstacle.
Cleaning:The equipment should be cleaned only with a light soft cloth. Do not use harsh or
corrosive products on the unit.
Periods of Inactivity:The power cord of the appliance should be unplugged from the outlet
when left unused for a long period of time.
Damage Requiring Service:The equipment should be serviced by qualified service
personnel when:
• The power supply cord or plug has been damaged; or
• Objects have fallen onto, or liquid spilled into the equipment; or
• The equipment has been exposed to rain; or
• The equipment does not appear to operate normally or exhibits a marked change in
performance; or
• The equipment has been dropped, or the enclosure damaged.
Servicing:
The user should not attempt to service the equipment beyond what is described in the
Operating Instructions.
All other servicing should be referred to qualified service personnel.
SM PRO AUDIO MPatch 5.1
FOREWORD
Dear Customer,
Thank you very much for expressing your confidence in SM Pro Audio products
by purchasing this unit. The MPatch 5.1 was designed to be a comprehensive
surround-sound monitor controller for home, project and professional studios,
live sound rental companies, repair centers, schools and fixed installations—in
short, virtually any and all venues where audio products are used. Drawing on
years of hands-on experience in the audio industry and valuable suggestions
from our customers, our engineers have developed a product that we are
certain will more than meet your expectations. As with all SM Pro Audio
equipment, the MPatch 5.1 was designed to provide you with superb
performance, excellent technical specifications, and uncompromising audio
quality at an extremely affordable price.
Regards,
SM Pro Audio
IMP O RTANT:
Hig h output v o lumes ma y damage y o ur ears,
your mo n i t o r s, and/o r y o ur head p h o n e s. Turn dow n t h e
LEVEL contr o l s before y o u s witch on t h e MPatch 5 . 1 .
INSTALLATION
Your SM Pro Audio MPatch 5.1 was carefully packed at the factory and the
packaging was designed to protect the unit from rough handling. Nevertheless,
we recommend that you carefully examine the packaging and its contents for
any signs of physical damage that may have occurred in transit.
If the unit is damaged, please do not return it to us, but notify your dealer and
the shipping company immediately, otherwise claims for damage or replacement
may not be granted. Shipping claims must be made by the consignee.
PLACEMENT
The SM Pro Audio MPatch 5.1 utilizes an electronic circuit. Be sure that there is
enough air space around the unit for cooling. To avoid overheating, please do not
place the unit on high temperature devices, such as power amplifiers, or near
other units, such as wireless devices, that may transmit high frequencies.
Mains voltage
The MPatch 5.1 can be used with voltages ranging from 100V AC to 240V AC.
Please make sure that you have selected the correct voltage range on the back
of the unit, and that the required fuse setting is correct, before switching the unit
ON. Any damage occurring as a result of incorrect voltage selection may not be
covered under warranty.
Mpatch 5.1 OVERVIEW
The MPatch 5.1 is a multi-channel passive analog attenuator designed to
provide sonically transparent level control over surround-sound signals.
Housed in a desktop/rack-mountable chassis, the unit features a main
rotary volume controller utilizing discrete 0.5% resistors with a switched
mechanism—a design that offers superior accuracy over standard variable
resistor designs, especially at critical low levels.
An assortment of dedicated front-panel switches provide control over audio
sources and destinations as well as -20dB Pad and Mute, while the rear panel
sports a variety of I/O including 1/4”, XLR, RCA, and D-Sub.
The MPatch 5.1 supports control over both stereo and 5.1 multi-channel
surround-sound audio signals.
SM PRO AUDIO MPatch 5.1
MPATCH 5 .1
Passiv e volume co ntrol
moni tor swi tcher
5.1 Su rroun d Monit ors
C+DA/B + C/ DA+B
LFESRSLR CL
SL/S R-MON OL/R- MONO
-20d b PAD
Mas ter
Ster eo Moni tors
ALL MU TE
Installation
The MPatch 5.1 can sit comfortably on your desktop. Two metal ears are
included for adapting the unit for rackmount use.
Power for the LEDs is supplied via the AC cable. All circuitry in the MPatch 5.1
is passive; AC is not required for audio operation.
SM PRO AUDIO MPatch 5.1
Mpatch 5.1 Rear Panel
Inputs
A: Balanced 5.1 input via 25-pin D-Sub connector
B: Unbalanced 5.1 input via RCA connectors
C: Balanced L/R input via 25-pin D-Sub connector
D: Balanced and unbalanced L/R input via RCA and 1/4” TRS
Outputs
L/R balanced XLR stereo outputs
6 x 1/4” TRS for surround 5.1 output
Switches
Individual MUTE switches for each stream of the 5.1 signal
Stereo output MUTE
All Mute
-20dB Pad
Simultaneous selection of multiple audio streams
Rotary Control
Custom-designed passive 5.1 volume controller with stepped 0.5% operation
POWE R
OFF ON
Pow er Inpu t
(90- 240V ac )
Ster eo Spea ker Out s
Left Righ t
Surr ound Sp eaker O utput s
Balan ced
SLAVE O UTPUT
LRLSRSCLFE
LFE
L
C
R
LRLS
Bala nced in put and L ink to ou tput
RS
INPU T BINPU T D
INPU T A+C
Mpatch 5.1 Audio input Connections
The MPatch 5.1 features four (4) separate inputs labeled A, B, C, and D
(Input section on rear panel of MPatch 5.1).
SM PRO AUDIO MPatch 5.1
important
The MPatch 5.1 accepts mic or line level input signals only.
Do not connect your power amplifier outputs to the MPatch 5.1 inputs!
Balanced Inputs A and C
Balanced main 5.1 input A and balanced stereo input C are routed to the
MPatch 5.1 via the 25-pin DSub connector. The wiring scheme follows the
TASCAM format, a widely-used protocol for connecting assorted audio
equipment via 25-pin D-Sub connectors.
Left
Right
Input A
1-6 = 5.1 Signal
Left Surround
Right Surround
Center
Pin-out for TASCAM DB25 8 Channel Balanced Connector
1 2 3 4 5 6 7 8
G C H G C H G C H G C H G C H G C H G C H G C H
8 7 6 5 4 3 2 1910111213
Sub (LFE)
141516171819202122232425
POWE R
OFF ON
Pow er Inpu t
(90- 240V ac )
Ster eo Spea ker Out s
Left Righ t
H = HOT
C = COLD
G = GROUND
Surr ound Sp eaker O utput s
Balan ced
Input C
7 = Stereo Left
8 = Stereo Right
SLAVE O UTPUT
LRLSRSCLFE
LFE
L
C
R
LRLS
Bala nced in put and L ink to ou tput
RS
INPU T BINP UT D
INPU T A+C
SM PRO AUDIO MPatch 5.1
Mpatch 5.1 Audio input Connections
Unbalanced Input B
Unbalanced 5.1 RCA inputs, ideal for direct output from unbalanced sources such
as DVD players, Blue Ray players, and media servers.
POWE R
OFF ON
Pow er Inpu t
(90- 240V ac )
Ster eo Spea ker Out s
Left Righ t
Surr ound Sp eaker O utput s
Balan ced
LFE
L
C
R
INPU T BINP UT D
Balanced/Unbalanced Input D
L/R balanced 1/4” TRS and unbalanced RCA inputs
POWE R
OFF ON
Pow er Inpu t
(90- 240V ac )
Ster eo Spea ker Out s
Left Righ t
Surr ound Sp eaker O utput s
Balan ced
LFE
L
C
R
INPU T BINP UT D
SLAVE O UTPUT
LRLSRSCLFE
L
LS
RS
RS
Bala nced in put and L ink to ou tput
R
LRLSRSCLFE
LRLS
Bala nced in put and L ink to ou tput
INPU T A+C
SLAVE O UTPUT
INPU T A+C
Tip
Sleeve
Ring
Mpatch 5.1 Audio output Connections
Stereo Operation
The MPatch 5.1 features three sets of outputs.
For monitoring the L/R stereo signal, you would normally use the Stereo Balanced
XLR outputs. If your speakers are unbalanced, you can use this output with an
adaptor that connects to Pin 1 (hot) and Pin 3 of the XLR connector.
The L/R stereo signal also appears at outputs 7 and 8,
respectively, of the D-Sub Slave Output.
SMP RO AUDIO MPatch 5.1
POWE R
OFF ON
Pow er Inpu t
(90- 240V ac )
Ster eo Spea ker Out s
Left Righ t
Surr ound Sp eaker O utput s
Balan ced
5.1 Surround output
These balanced 1/4” TRS outputs
carry the individual 5.1 audio streams.
POWE R
OFF ON
Pow er Inpu t
(90- 240V ac )
Tip
Ster eo Spea ker Out s
Left Righ t
Sleeve
Surr ound Sp eaker O utput s
Balan ced
SLAVE O UTPUT
LRLSRSCLFE
L
LS
LFE
L
RS
C
R
INPU T BINP UT D
Bala nced in put and L ink to ou tput
R
INPU T A+C
D-Sub surround outputs 1-6
mirror D-Sub inputs 1-6 (pg. 6).
SLAVE O UTPUT
LRLSRSCLFE
L
LS
LFE
L
RS
C
R
INPU T BINP UT D
Bala nced in put and L ink to ou tput
R
INPU T A+C
Ring
SMP RO AUDIO MPatch 5.1
Output selector switches
Individual mute switches
5.1 Su rroun d Monit ors
C+DA/B + C/ DA+B
MPATCH 5 .1
Passiv e volume co ntrol
moni tor swi tcher
Surround or
stereo input selector
Surround input selector
5.1 Su rroun d Monit ors
C+DA/B + C/ DA+B
MPATCH 5 .1
Passiv e volume co ntrol
moni tor swi tcher
LFESRSLR CL
SL/S R-MON OL/R- MONO
-20d b PAD
Mas ter
Stereo input selector
LFESRSLR CL
SL/S R-MON OL/R- MONO
-20d b PAD
Mas ter
Ster eo Moni tors
ALL MU TE
Mute all outputs
Ster eo Moni tors
ALL MU TE
Stereo > Mono
Surround > Mono
-20dB Pad
Using the M-Patch 5.1
Volume Control
The MPatch 5.1 main volume control features a specially designed attenuator
that provides exceptional accuracy in 12 steps.
When used in conjunction with the -20dB Pad, the attenuator offers 24 different
volume levels that can be instantly and accurately recalled.
Mute
The MPatch 5.1 outputs are muted when the ALL MUTE button is pressed.
SM PRO AUDIO MPatch 5.1
MPATCH 5 .1
Passiv e volume co ntrol
moni tor swi tcher
5.1 Su rroun d Monit ors
C+DA/B + C/ DA+B
-20dB Pad
SL/S R-MON OL/R- MONO
12-position
stepped
attenuator
LFESRSLR CL
-20d b PAD
Ster eo Moni tors
ALL MU TE
Mas ter
All Mute switch
You can use both active and passive speakers with the MPatch 5.1, connecting
the MPatch 5.1’s outputs directly to active speakers or to power amplifiers
driving passive speakers. Passive and active speakers may be freely mixed.
WARNING:
input. This will damage the unit and void your warranty.
Never connect the output of a power amp to an MPatch 5.1
Audio input connections
DVD with Built-In Decoder
CD Player
Digital Workstation
SMPROAUDIO M-Patch 5.1
POWE R
OFF ON
Powe r Input
(90- 240V ac )
Mul ti-fo rmat pl ayer/
Ext ernal d ecode r
Surr ound Sp eaker O utput s
Ster eo Spea ker Out s
Balanc ed
Left Righ t
25-pin D-Sub connection for analog channels
SM Pro Audio, Digidesign, TASACAM, Mackie, etc.
DIGI TAL AUDIO
WORK STATION
MIXI NG CONS OLE
LFE
L
C
R
Channels
1 - 6
(5.1 Surround)
LRLSRSCLFE
LRLS
Bala nced in put and L ink to ou tput
RS
INPU T BINPU T D
CD Player
Digital Workstation
SLAVE OU TPUT
INPU T A+C
Channels
7 and 8
(Stereo L/R)
SMPROAUDIO M-Patch 5.1
SMPROAUDIO M-Patch 2
WARRANTY
SM Pro Audio warrants the mechanical and electronic components of this product to be
free of defects in material and workmanship for a period of one (1) year from the original
date of retail purchase, in accordance with the warranty regulations. If any defects occur
within the specified warranty period that are not caused by normal wear or inappropriate
use, SM Pro Audio shall, at its sole discretion, either repair or replace the product.
WARRANTY REGULATIONS
• Warranty is enforceable only by the original retail purchaser.
• Warranty services will be furnished only if the product is accompanied by an original retail
dealer’s invoice. Any product deemed eligible for repair or replacement by SM Pro Audio under
the terms of this warranty will be repaired or replaced at SM Pro Audio’s sole discretion.
• If the product needs to be modified or adapted in order to comply with applicable
technical or safety standards on a national or local level, in any country that is not the
country for which the product was originally developed and manufactured, this
modification/adaptation shall not be considered a defect in materials or workmanship.
• The warranty does not cover any such modification/adaptation, irrespective of whether it
was carried out properly or not. Under the terms of this warranty, SM Pro Audio shall not
be held responsible for any cost resulting from such a modification/adaptation.
• Free inspections, maintenance/repair work, and replacement of parts are expressly
excluded from this warranty, in particular if caused by inappropriate use. Likewise, the
warranty does not cover defects of expendable parts caused by normal wear of the product.
Expendable parts are typically pots, potentiometers, switches and similar components.
• Damages/defects caused by the following conditions are not covered by this warranty:
Misuse and/or abuse; Neglect or failure to operate the unit in compliance with the
instructions given in the user or service manuals; Connection or operation of the unit in
any way that does not comply with the technical or safety regulations applicable in the
country where the product is used; Damages/defects that are caused by any other condition
beyond the control of SM Pro Audio.
• Repairs and modifications performed by unauthorized personnel will void the warranty.
• Products that do not meet the terms of this warranty will be repaired solely at the buyer's
expense. SM Pro Audio will inform the buyer of any such circumstance. If the buyer fails to
submit a written repair order within 4 weeks after notification, SM Pro Audio will return the
unit C.O.D. with a separate invoice for freight and packing. Such cost will also be invoiced
separately when the buyer has sent in a written repair order.
CLAIM FOR DAMAGES
Failure of SM Pro Audio to provide proper warranty service shall not entitle the buyer to
claim (consequential) damages. In no event shall the liability of SM Pro Audio exceed the
invoiced value of the product.
OTHER WARRANTY RIGHTS
This warranty does not exclude or limit the buyer's statutory rights provided by national
law, in particular, any such rights against the seller that arise from a legally effective
purchase contract.
RETURN AUTHORIZATION NUMBER
To obtain warranty service, you must contact SM Pro Audio for a Return Authorization
number before returning the product (Tel.: +61 3 9555 8081; service@smproaudio.com).
All inquiries must be accompanied by a description of the problem. No products will be
accepted for warranty service without a Return Authorization number.
The product must be returned in its original shipping carton, together with the Return
Authorization number, to:
SM Pro Audio Service Department, W25 26-28 Roberna St., Moorabbin, Melbourne,
Victoria, Australia 31892.
If the warranty claim proves to be justified, the product will be returned freight prepaid by
SM Pro Audio within Australia.
Outside of Australia, please contact you local distributor for a Return Authorization
number and shipping instructions.
CLAIM FOR DAMAGES
Failure of SM Pro Audio to provide proper warranty service shall not entitle the buyer to
claim (consequential) damages. In no event shall the liability of SM Pro Audio exceed the
invoiced value of the product.
SPECIFICATIONS
Audio Inputs • 1 x D-Sub 25-pin (surround + L/R)
• 6 x Unbalanced RCA (surround)
• 2 x Unbalanced RCA (L/R)
• 2 x Balanced 1/4” TRS
SM PRO AUDIO MPatch 5.1
Audio Outputs • 2 x Balanced XLR (L/R)
• 6 x Balanced 1/4” TRS (surround)
Link Output • 1 x D-Sub 25-pin (surround + L/R)
Power AC Mains; Internal Switching, 100V-240VAC
(Note: AC power required only to illuminate the unit’s LEDs. All other functions
of the MPatch 5.1 operate fully without the use of AC power.
Dimensions 37cm x 15.5cm x 8.5 cm (w/o rack ears)
Weight 2kg
The information contained in this manual is subject to change without notice. No part of this manual may be reproduced
or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording of any kind,
for any purpose, without the express written permission of SM Pro Audio.
All Rights Reserved © 2010 SM Pro Audio
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