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All material © 2007. Martin Audio Ltd. Subject to change without notice.
10 M3
+
Configuration
10.1 Front
panel
With Sub mode
To keep things simple, select
With Sub
mode when using subwoofers,
Full Range
mode when running
F8
+
, F10
+
, F12
+
or F15
+
loudspeakers without subwoofers and set the Combo Card jumpers to the relevant
quick-start illustrations shown later in these notes.
10.2 Choosing a power amplifier
Martin Audio loudspeakers are capable of recreating musical dynamics accurately and with incredible
impact if powered correctly. Martin Audio loudspeaker power ratings are quoted for
AES
power - a long-
term average power rating, and
Peak
power – a short-term burst capability.
Moving coil loudspeakers can be run up to their
AES
power rating continuously and up to the higher
Peak
power rating for transient musical peaks.
Choose an amplifier capable of delivering the loudspeaker’s Peak power rating
Use the M3+’s carefully timed limiters to avoid exceeding the AES long-term power rating.
This policy avoids clipping transient peaks. Clipping not only sounds unacceptable but can seriously stress
your system by dumping large amounts of distortion into the high frequency drivers.
10.3 M3
+
internal jumper configuration
The M3
+
controller contains internal jumpers to cater for a variety of Blackline
+
loudspeakers – including
loudspeaker and subwoofer combinations.
Please note that these jumpers should be set by experienced
electronics technicians only.
Mono Subwoofer operation
Move the motherboard jumper J17 to position B for mono subwoofer operation.