Amina ALF40 - Manual (Page 13)

Setup Tips
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When setting up any of the above system
scenarios, it is advised to experiment with
connecting the ALF40 in reverse phase with
respect to the Evolution series speakers.
Often the reverse-phase connection results in
better integration and slightly higher sound
pressure level through “cross-over” region.
Using pink noise can be a good way of
judging the difference between the in-phase
and reverse-phase connections.
When wiring the ALF40 in either the Active
2.1 or 2.2 setups shown previously, a
maximum of two ALF40’s may be connected
in parallel to a single amplifier output as long
as no other speaker panel ic sonnected to
the same output (amplifier must be 4 Ohm
stable). This will help provide the correct low
frequency sound pressure levels in large
rooms without the need for additional
amplifier channels.
Where there is more than one pair of
Evolution speakers in a room, decide which
of the above scenarios is applicable to the
system then multiply the number (e.g 2. 1) by
the number of speaker pairs.
Example: a very large reception room
requires four AIW350i speakers and the
amplifier has provision for up to six
independent amplifier channels. This could
then be an Active 4. 2 system (2. 1x2 = 4. 2) or
a passive 4. 4 system (2. 2x2 = 4. 4)
depending on the amount of bass output
required.
To avoid unwanted vibrations, ensure the
ALF40 is fixed securely to a structure or, if
free standing, the supplied rubber feet are
used.
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