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MPA 601-70V and MPA 601-100V • Setup Guide
This guide provides basic instructions for an experienced installer to install and configure the
Extron MPA 601-70V and MPA 601-100V mini power amplifiers. See below for front and rear panels of the MPA 601-70V.
INPUTS
L
LEVEL
BASS
TREBLE
POWER
12V
1.3A MAX
(SUMMED)
G
TIMER OFF
L (SUMMED)R
STANDBY
10V
50mA
MPA 601-70V
70V OUTPUT
R
R
MPA 601
V C
G
REMOTE
MINI POWER AMPLIFIER
CLASS 2 WIRING
Step 1 — Turn all of the equipment off and disconnect all power sources.
Step 2 — Mount the amplifier in either a plenum space, on a rack, under a desk, or on a projector.
ATTENTION:
•
Although the amplifier is plenum rated, the power supply provided with it is not. The power supply must not be placed
in the plenum space. Cables to and from the amplifier must be plenum rated.
•
Bien que l’amplificateur soit conforme à la norme relative aux faux plafonds, la source d’alimentation fournie avec
ne l’est pas. La source d’alimentation ne doit pas être placée dans l’espace plenum. Les câbles depuis et vers
l’amplificateur doivent aussi être classés plenum.
•
Use only the two round mounting holes for mounting the MPA 601. The other four (hexagonal) holes anchor stand-offs
for the internal circuit boards. Using them may damage the amplifier and does not provide secure mounting for the
unit.
•
Utilisez seulement les deux trous pour monter le MPA 601. Les autres quatre trous d’ancrage sont destinés aux cartes
de circuit internes. Le fait de les utiliser pourrait endommager l’amplificateur et n’assurera pas un montage sécurisé
pour l’unité.
Step 3 — Attach the speakers to the MPA 601 using the 2-pole, 5 mm screw‑lock captive screw speaker
receptacle on the rear panel.
70V OUTPUT
ATTENTION:
•
Do not ground or short the speaker outputs as this will damage the amplifier.
•
Ne pas mettre à la terre ni créer de court-circuit dans les sorties de l’enceinte, afin d’éviter tout
risque de détérioration de l’amplificateur.
Step 4 — Attach sources to the MPA 601 unit from the audio source or projector.
The three rear panel audio inputs can be used individually or together:
•
One pair of RCA receptacles (unbalanced)
•
One 3.5 mm stereo tip-ring-sleeve (TRS) receptacle (unbalanced)
•
One 3.5 mm, 5-pole captive screw receptacle (balanced or unbalanced)
3.5 mm TRS Connector
RCA Connector
L
L
Tip
Sleeve
Tip
Ring
Sleeve
R
R
Balanced Stereo Input
Sleeve ( )
Sleeve ( )
R
R
Unbalanced Stereo Input
Tip
Ring
Sleeves
Tip
Ring
Tip (L)
Ring (R)
Tip (+)
L
L
Tip
Sleeve
Tip
Sleeve
Unbalanced Mono Input
Balanced Mono Input
NOTES:
•
•
CLASS 2 WIRING
The MPA 601 amplifier sums the left and right signals from both the TRS and RCA
inputs to form Sum 1. Sum 1 is then weighted. At the same time, the amplifier sums the
left and right signals from the captive screw input to form Sum 2. Sum 1 and Sum 2 are
POWER
12V
then summed together to form a single mono signal. Refer to the MPA 601 Series User
1.3A MAX
Guide for more details regarding audio summing.
INPUTS
G
L
(SUMMED)
L (SUMMED)R
STANDBY
10V
50mA
V C
G
REMOTE
Ensure the audio output of the projector is set to variable. Multiple input options can be used simultaneously and be summed.
1
TIMER OFF
G
70V O
R
R
The captive screw, RCA and TRS inputs are buffered.
INPUTS
MPA 6
MPA 601-70V
CLASS
Step 5 — Connect power cords to the MPA 601 and other audio equipment.
The MPA 601 ships with an Extron 50 W (12Vdc, 4.2A) desktop power supply.
Connect the pre-wired captive screw connector into one of the two-pole, 3.5
mm captive screw outlets on the power supply and the other end into the
power receptacle on the amplifier (see the figure to the right). The power cord
connectors are correctly wired when shipped (see Attention below).
MPA 601 series
Amplifier
50W (12Vdc, 4.2A) Power Supply
AC Power Cord
Power Receptacle
DC Power
Outputs
12V
1.5A MAX
ATTENTION:
•
See the attention notices in the Power Input section of the MPA 601
Series User Guide for important information about using power
supplies.
•
Reportez-vous aux précautions d’emploi incluses dans la section
sur l’entrée d’alimentation du MPA 601 Series User Guide pour des
informations essentielles sur l’utilisation des sources d’alimentation.
•
When the 50 W (12Vdc, 4.2A) power supply is connected to the MPA
601, it must not be shared with any other devices.
•
Lorsque la source d’alimentation 50 W (12Vdc, 4.2A) est connectée
au MPA 601, elle ne peut être partagée avec aucun autre appareil.
DC Power Cord
Captive Screw Connector
Captive Screw
Connector
Tie
Wrap
Power Supply
Output Cord
LEVEL
BASS
TREBLE
Step 6 — Adjust the MPA 601 input LEVEL, BASS, and TREBLE from the front
panel (see figure at right).
MPA 601
MINI POWER AMPLIFIER
1.
If necessary, unplug the remote connector from the unit (see step 7, below).
2.
If connecting the amplifier to a system with adjustable volume, set the volume to its lowest point. Then adjust the MPA 601
front panel LEVEL potentiometer fully counterclockwise.
MPA 601-70V MPA 601-70V
G
INPUTS
3.
4.
Set the system volume to its maximum volume level (no sound should come out).
L
POWER
12V
..A MAX
L
(SUMMED)
G
TIMER OFF
TIMER OFF
INPUTS
L (SUMMED) R
STANDBY
10V
50mA
R
70V OUTPUT
STANDBY
10V
50mA
Return to the MPA 601 and raise the LEVEL until sound distortion first occurs,
then(SUMMED)
lower slightly untilLthe
POWER
(SUMMED)R
R
12V
distortion disappears. This setting ensures that, whatever the system volume
setting may
be, no clipping
1.3A MAX
V C G
REMOTE
occurs.
100V OUTPUT
R
CLASS 2 WIRING
R
5.
Adjust BASS and TREBLE to preference.
V C
G
REMOTE
CLASS 2 WIRING
Step 7 — The rear panel lower 3-pole Remote captive screw receptacle on the amplifier can be used for remote control
of 601-100V
the
MPA
G
volume by an Extron volume controller such as an Extron VCM 110 AAP, VC 50, MLA VC10 Plus, or select MLC controllers. These
L
controllers have a built-in VC module that can be used to control the amplifier. MediaLink controllers
can
also adjust the 100V
audio
OUTPUT
INPUTS
(SUMMED)
POWER
L (SUMMED) R
R
12V or by IR remote (see the MPA
volume at the source, rather than with the volume control port, via a network connection
601 Series
..A MAX
User Guide).
R
TIMER OFF
STANDBY
10V
50mA
Step 8 — The rear panel upper 3-pole Remote captive screw receptacle on the amplifier affects standby. When the
STANDBY
REMOTE
pin is shorted to ground, the MPA 601 goes into standby mode. The front panel power LED turns amber to indicate when the
MPA 601 is in standby. When the TIMER OFF pin is shorted to ground, the standby timer will be disabled, and the amplifier does
not go into standby after 25 min (±5 min) of inactivity. The MPA 601 can still be forced into standby mode using the STANDBY pin,
even if the timer has been defeated.
V C
G
CLASS 2 WIRING
When the short is removed from the STANDBY pin, the unit may remain in standby mode, depending on certain conditions:
•
The input signal is below the input signal detection threshold.
•
The standby timer is enabled.
•
The timeout interval since the last detection of a signal has elapsed.
NOTE: If the TIMER OFF pin is shorted to ground, the unit will always come out of standby when the short is removed
from the STANDBY pin.
© 2016-2018 Extron Electronics All rights reserved. All trademarks mentioned are the property of their respective owners. www.extron.com 68-2512-50 Rev. B
01 19
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