1
Power inlet
Before making any connection, check that
the mains voltage setting printed on the
rear panel is the same as your local mains
supply.
Plug the female (socket) end of the power
cord into the power inlet on the rear of the
amplifier. Plug the male (plug) end of the
cord into a “live” wall socket or a suitable
heavy-duty extension cable.
UK version: The mains plug is supplied
fitted with a 13A fuse. It should only be
replaced with a fuse of the same rating
(13A) which complies with BS1362.
2
Power switch
Press one side of this rocker switch (the
side nearer the edge of the rear panel) to
switch amplifier ON and the other side
(towards the speaker terminals) to switch it
OFF. When the POWER switch is in the
OFF position all power is disconnected
from the amplifier. In this condition the
amplifier cannot be powered up from the
front panel or the My-Link or remote
trigger. When the POWER switch is in the
ON position (and the power cord correctly
inserted and plugged in to a live wall
socket) the amplifier will power up in
standby mode (see FRONT PANEL
CONTROLS, STANDBY, on page 6).
It is recommended that the POWER switch
be turned OFF if the amplifier is not going
to be used for an extended period of time.
3
My-Link input/output
When the MA 500 is used in a system with
other Myryad M-Series products all may be
joined together via the My-Link. This will
allow the different products to be remotely
controlled via the infra-red receiver on, for
example, an MDP 500 Preamplifier-
Processor or any Myryad M-Series
Preamplifier (or Integrated Amplifier) or a
suitable multi-room controller.
When joined via the My-Link, the MA 500
will respond to STANDBY and MUTE
operations on the preamplifier (whether
operated from the front panel or by remote
control). For example, if both the
preamplifier and the MA 500 are in
STANDBY, then switching the preamplifier
out of standby will also bring the MA 500
out of standby. In this way an MDP 500 +
MA 500 can be operated with the same
ease as an integrated amplifier. If a number
of MA 500s are being used in a multi-room
system all the amplifiers may be My-Linked
so that they can be controlled as one.
Use a short RCA-to-RCA (phono-to-
phono) interconnect cable to connect from
the MY-LINK OUT socket on the
preamplifier to the MY-LINK IN socket on
the MA 500. A suitable 0.5m long My-Link
cable is supplied with the MA 500.
A second cable can then run from the
MY-LINK OUT socket on the MA 500 to
the MY-LINK IN socket on a third Myryad
component (if desired) and so on - in
‘daisy-chain’ fashion.
NOTE:
MANUALLY SWITCHING THE MA
500
INTO
STANDBY WILL NOT SWITCH A
MY-LINKED PREAMPLIFIER OR INTEGRATED
INTO STANDBY.
WHEN THE MY-LINK IS CONNECTED IT IS
RECOMMENDED THAT NO CONNECTION BE
MADE TO THE REMOTE TRIGGER INPUT (SEE
PAGE
5
).
REAR PANEL
CONNECTIONS
SETTING UP YOUR
SYSTEM
4
5
7
6
1
4
2
3
CAUTION: THE RED TERMINALS ARE
MARKED WITH A HAZARD SYMBOL ‘ ’
TO INDICATE THAT THEY CAN BE LIVE. READ
ALL THE LOUDSPEAKER WIRING
INSTRUCTIONS CAREFULLY. IT IS
RECOMMENDED THAT READY-MADE LEADS
BE USED WHERE POSSIBLE.
For correct imaging it is important that all
the loudspeakers are wired “in phase”. To
ensure correct phasing wire the black (-)
terminal on the amplifier to the black
or “-” terminal on the loudspeaker. The red
(+) terminal on the amplifier should be
wired to the red or “+” terminal on the
loudspeaker.
The MA 500’s five amplifier channels are
numbered 1 to 5 and all are identical. They
may be assigned in a variety of ways in
Home Cinema or multi-room systems. For
convenience of installation in Home
Cinema applications the channels are also
marked as follows:
channel 1 - left front,
channel 2 - centre,
channel 3 - right front,
channel 4 - left surround,
channel 5 - right surround.
However, if desired the channels may be
re-assigned in any other way that is
preferred. In each case make sure all
loudspeakers are wired ‘in phase’ as
described above.
6
Line inputs
The line inputs can be driven from the line
outputs of any good quality processor or
preamplifier (such as the Myryad MDP 500
or MP 100) or any other suitable line level
source. The five channels are numbered 1
to 5 and also named for Home Cinema
use (see above). High quality RCA-to-RCA
(phono-to-phono) interconnects should be
used.
7
Line outputs
Each channel’s line output is directly
connected to its line input - without
buffering. The line output allows power
amplifiers to be ’daisy-chained’ so that
more complex multi-room systems may be
built.
5
4
Remote trigger control input/output
If the MA 500 is being used in a system
without a Myryad M-Series preamplifier,
processor or integrated equipped with
My-Link, the REMOTE TRIGGER input
may be used to allow the MA 500 to be
remotely switched into or out of STANDBY.
If your preamplifier or processor has a
TRIGGER output which delivers a DC
trigger signal when the unit is switched on
(or out of standby) then it can be linked to
the MA 500 to switch the MA 500 out
of/into standby also. A lead must be used
which is fitted with a 3.5mm mini-jack
plug to connect to the MA 500’s REMOTE
TRIGGER input socket. The lead must be
wired according to the rules below:
• Connector to MA 500 REMOTE
TRIGGER input: 3.5mm mini-jack plug
• Jack plug wiring: sleeve negative,
tip positive
• Trigger voltage: DC, 4.5V to 24V
• Nominal loading of MA 500 REMOTE
TRIGGER input: 2200
Ω
• Operation:
TRIGGER voltage change from 0 to +ve:
MA 500 switched from standby to active
TRIGGER voltage change from +ve to 0:
MA 500 switched from active to standby
IF YOU ARE IN ANY DOUBT ABOUT
MEETING ANY OF THESE CRITERIA, OR
PREPARING A SUITABLE LEAD, ASK
YOUR DEALER OR INSTALLER TO
HANDLE THIS FOR YOU.
NOTE: IF THE TRIGGER INPUT IS ACTIVE
WHEN THE REAR PANEL POWER SWITCH IS
TURNED ON, THEN THE AMPLIFIER WILL
NOT POWER UP INTO STANDBY MODE AS
USUAL. IT WILL POWER UP IMMEDIATELY
INTO ITS ‘ACTIVE’ STATE - WITH ITS NORMAL
POWER-ON MUTE DELAY (SEE FRONT PANEL
CONTROLS, STANDBY BELOW).
The REMOTE TRIGGER output is wired
directly to the input. Using this output,
further MA 500s, or other products, may be
connected from a single trigger source
without needing any special adaptors.
5
Loudspeaker outputs
The five amplifiers in the MA 500 are each
capable of driving any loudspeaker with a
rated impedance of 4
Ω
or greater. The
loudspeaker terminals are high-current
binding-posts, coded red and black.