Important Safety Instructions
.
Read these instructions.
2.
Keep these instructions.
3.
Heed all warnings.
4.
Follow all instructions.
5.
Do not use this apparatus near water.
6.
Clean only with a dry cloth.
7.
Do not block any ventilation openings. Install in accordance
with the manufacturer’s instructions.
8.
Do not install near any heat sources such as radiators, heat
registers, stoves, or other apparatus (including amplifiers)
that produce heat.
9.
Only use attachments/accessories specified by the
M48 48V Power Supply
manufacturer.
10.
Refer all servicing to qualified service personnel. Servicing is
required when the apparatus has been damaged in any way, such
as power-supply cord or plug is damaged, liquid has been spilled
or objects have fallen into the apparatus, the apparatus has been
exposed to rain or moisture, does not operate normally, or has
been dropped.
11.
This apparatus shall not be exposed to dripping or splashing, and
no object filled with liquids, such as vases or beer glasses, shall
be placed on the apparatus.
12.
This device complies with Part 5 of the FCC Rules. Operation is
subject to the following two conditions: () this device may not
cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause
undesired operation.
NOTE:
This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no
guarantee that interference will not occur in a particular
installation.
If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the
equipment o and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment
and the receiver.
• Connect the equipment into an outlet on a circuit
dierent from that to which the receiver is connected.
• Consult the dealer or an experienced radio / TV
technician for help.
CAUTION:
Changes or modifications to this device not expressly
approved by LOUD Audio LLC could void the user's authority to
operate the equipment under FCC rules.
WARNING — To reduce the risk of fire or electric shock,
do not expose this apparatus to rain or moisture.
3.
This device complies with FCC radiation exposure limits set
forth for an uncontrolled environment. This device should be
installed and operated with minimum distance 20cm between
the radiator & your body.
4.
This apparatus does not exceed the Class A/Class B
(whichever is applicable) limits for radio noise emissions
from digital apparatus as set out in the radio interference
regulations of the Canadian Department of Communications.
ATTENTION
— Le présent appareil numérique n’émet pas de bruits
radioélectriques dépassant las limites applicables aux
appareils numériques de class A/de class B (selon le cas)
prescrites dans le réglement sur le brouillage radioélectrique
édicté par les ministere des communications du Canada.
5.
This device complies with Industry Canada licence-exempt RSS
standard(s).
Operation is subject to the following two conditions:
() this device may not cause interference, and
(2) this device must accept any interference, including
interference that may cause undesired operation of the device.
Le présent appareil est conforme aux CNR d’Industrie
Canada applicables aux appareils radio exempts de licence.
L’exploitation est autorisée aux deux conditions suivantes:
() l’appareil ne doit pas produire de brouillage, et
(2) l’utilisateur de l’appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est susceptible d’en
compromettre le fonctionnement.
6.
Exposure to extremely high noise levels may cause permanent
hearing loss. Individuals vary considerably in susceptibility to
noise-induced hearing loss, but nearly everyone will lose some
hearing if exposed to suciently intense noise for a period of
time. The U.S. Government’s Occupational Safety and Health
Administration (OSHA) has specified the permissible noise
level exposures shown in the following chart.
According to OSHA, any exposure in excess of these
permissible limits could result in some hearing loss. To
ensure against potentially dangerous exposure to high sound
pressure levels, it is recommended that all persons exposed
to equipment capable of producing high sound pressure levels
use hearing protectors while the equipment is in operation.
Ear plugs or protectors in the ear canals or over the ears must
be worn when operating the equipment in order to prevent
permanent hearing loss if exposure is in excess of the limits set
forth here:
Duration, per
day in hours
8 90 Duo in small club
6 92
4 95 Subway Train
3 97
2 100 Very loud classical music
1.5 102
1 105 Ryan screaming at Troy about deadlines
0.5 110
0.25 or less 115 Loudest parts at a rock concert
Sound Level dBA,
Slow Response
Typical Example
Correct disposal of this product: This symbol indicates that this product should not be disposed of with your household waste, according to the WEEE
directive (2012/19/EU) and your national law. This product should be handed over to an authorized collection site for recycling waste electrical and
electronic equipment (EEE). Improper handling of this type of waste could have a possible negative impact on the environment and human health due
to potentially hazardous substances that are generally associated with EEE. At the same time, your cooperation in the correct disposal of this product
will contribute to the eective usage of natural resources. For more information about where you can drop o your waste equipment for recycling, please
contact your local city oce, waste authority, or your household waste disposal service.
2
M48 48V Power Supply
Contents
Owner’s Manual
Introduction
Important Safety Instructions ........................................ 2
Contents ........................................................................... 3
Features ............................................................................3
How To Use This Manual ................................................. 3
Introduction ..................................................................... 3
Getting Started ................................................................ 3
Things To Remember ....................................................... 3
Hookup Diagram .............................................................. 4
M48: Rear Panel Features ..............................................5
Phantom Power – IMPORTANT ............................... 5
1. Power Connector ...................................................5
2. XLR Input Jack ..................................................... 5
3. XLR Output Jack ..................................................5
M48: Front Panel Features ............................................. 6
4. Power Switch and LED .........................................6
5. Low Battery LED ...................................................6
Battery Compartment (Not Shown) .......................6
Appendix A: Service Information ....................................7
Appendix B: Technical Information ................................ 8
M48 Dimensions.......................................................8
M48 Block Diagram ..................................................9
Limited Warranty ........................................................... 10
The M48 48v Phantom Power Supply allows you to use
your devices and microphones that require external power
in any setup.
Sometimes the phantom power being supplied is inadequate
as well, and with the M48, you will always get a clean,
full 48v of power for the best sound and noise performance.
Powered by either a 9v battery or supplied AC adapter.
Getting Started
The following steps will help you set up the M48 48V
Power Supply quickly.
1. Make sure the power switch is o on all connected gear.
2. Turn down all level knobs on all connected gear.
3. Connect a condenser microphone to the input jack
of the M48 using a balanced XLR cable.
4. Connect a balanced XLR cable from the output jack
of the M48 to the input jack of the mixer or audio interface.
5A. Push the included AC power adapter securely into the
M48’s connector and plug the other end into an AC outlet.
The M48 may accept the appropriate voltage as indicated
near the connector.
Features
• Perfect for condenser mics and equipment that require
48v Phantom Power
• XLR input and output
• Transparent, noise-free operation
• Powered by the included AC adapter or 9v battery
• Power and Low Battery indication
• Built-Like-A-Tank™ construction
How to Use This Manual
Afer this introduction, a getting started guide will help you
get things set up fast. The hookup diagram shows a typical
setup.
This icon marks information that is critically
important or unique to the M48. For your
own good, read and remember them.
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5B. Insert a 9 V battery (accessible by sliding and removing
the battery case cover on the bottom panel of the M48).
6. Turn the mixer or audio interface’s power switch on.
7. Turn the M48 48V Power Supply’s power switch on.
The front panel power LED will illuminate.
8. Be sure that the volume of the input is the same as it
would be during normal use.
9. Slowly raise the mixer’s input and output level knobs
to a comfortable listening level.
Things to Remember
• Never listen to loud music for prolonged periods.
Please see the Safety Instructions on page 2 for
information on hearing protection.
• Save the shipping boxes and packing materials!
You may need them someday. Besides, your hamster
will love playing in them and jumping out at you
unexpectedly. Remember to pretend like you
are surprised!
Part No. SW1229 Rev. A 01/18
©2018 LOUD Audio, LLC All Rights Reserved.
• Save your sales receipt in a safe place.
Owner’s Manual
3
Hookup Diagram
M48 48V Power Supply
1(L)3/45/62-TRACKSTUDIO/
2(R)
+9V DC
USB
POWER
OUTPUTINPUT
MONITORC MONITORBMONITOR
REC SRC
SELECT
2-TRACK
INPUTS 1/2
+18VDC
1.5A
L
R
BAL / UNBAL
BAL / UNBAL BAL / UNBALBAL / UNBAL
L
R
BAL / UNBAL
OUTPUTS
PHONES
A
L
R
+4dB
AMP
-10dB
L
L
R
BAL / UNBALBAL / UNBAL
MIC
R
FOOTSWITCH
TALKBACK
AUX
MIX
+4dB
(MONO)
BAL / UNBAL
CUE IN
-10dB
L
L
(MONO)
R
R
SOURCES INPUTS
(MONO)
L
R
INT
EXT
The M48 48V Power Supply is the perfect solution for anyone using a condenser microphone (or other
equipment) that requires phantom power. Let’s take a look at the hookup diagram.
Start by turning the down the main output level of the audio interface. In this example it’s a Mackie Big Knob
Studio+. Next, connect a condenser microphone to the M48’s input jack using a balanced XLR cable. Now,
you will want to connect a balanced XLR cable from the M48’s output jack to the audio interface’s input jack.
Finish up by slowly raising the level of the audio interface’s output knob.
Note: While an audio interface may be the most common use, you could connect a mixer in lieu of an audio
interface to the M48.
Note: If the audio interface or mixer has built-in phantom power, do not engage it while using the M48!
Typical M48 Setup
4
M48 48V Power Supply