Table of Contents
Advertisement
Power amplifier gain
23dB
24dB
25dB
26dB (Crown standard)
27dB
28dB
29dB
30dB
31dB
32dB (Industry standard)
33dB
34dB
35dB
36dB
37dB
38dB
39dB
40dB
ClipLims
The ClipLim settings protect the loudspeaker from transient overloads (and protects against
amplifier clipping if the amplifier is capable of supplying the loudspeaker's rated peak power).
All Martin Audio loudspeakers are designed to professional AES power ratings that allow for
6dB signal peaks above the rated AES power. This means that Martin Audio loudspeakers
have peak power handling capabilities that are 6dB above (4x) their AES power ratings –
when the correct controller settings are used.
Note that the ClipLims default to Medium 2dB Above the primary limiter thresholds if not set
up. To take advantage of your power amplifier's and loudspeaker's peak capability, set the
ClipLims as follows:
Subwoofers
Low mid/LF
High mid/HF
If you have specified an amplifier smaller than the loudspeaker's peak power rating you may
need to reduce the ClipLim settings by a dB or two to prevent amplifier clipping as it runs out
of headroom.
You must, of course, set the recommended primary Limiter threshold before adjusting the
ClipLim level to prevent amplifier clipping.
If you end up setting the ClipLim as low as 2dB Above in an attempt to prevent significant
amplifier clipping, and the amplifier still clips, you probably need a bigger amplifier. If budgets
don't allow for a bigger amplifier you may need to reduce the primary Limiter threshold
settings to prevent the amplifier from clipping at the 2dB Above ClipLim setting.
System configurations
Your Martin Audio DX1.5 Loudspeaker Management System must be correctly patched.
There are a large number of Martin Audio factory presets and configurations and these are
being expanded all the time. It is always sensible to check your DX1.5 output channel
allocations for the particular preset you have chosen to use before patching your system. This
will ensure that the appropriate band is being routed to each loudspeaker section.
You can do this by pressing each yellow output channel EDIT button and noting the output
channel allocations (e.g. Low, MidHi) indicated on the DX1.5's display panel.
All material © 2009. Martin Audio Ltd. Subject to change without notice.
Primary limiter threshold adjustment from 32dB
preset standard
Add 9dB
(e.g. +4dBu becomes +13dBu)
Add 8dB
Add 7dB
Add 6dB
(e.g. +4dBu becomes +10dBu)
Add 5dB
Add 4dB
Add 3dB
Add 2dB
Add 1dB
(e.g. +4dBu becomes +5dBu)
Martin Audio preset standard
Decrease by 1dB (e.g. +4dBu becomes +3dBu)
Decrease by 2dB
Decrease by 3dB
Decrease by 4dB
(e.g. +4dBu becomes 0dBu)
Decrease by 5dB
Decrease by 6dB
Decrease by 7dB
Decrease by 8dB (e.g. +4dBu becomes -4dBu)
Slow 6dB Above
Medium 6dB Above
Fast 6dB Above
Advertisement
Table of Contents
