D'Amore engine'ring SMD IM-SG, Руководство пользователя

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8
General Notes for Measuring Raw Speaker
Drivers (out of box)
When measuring raw speaker drivers it is important that the
room in which the speaker is being tested is quiet and the
air in the room is still. If a fan is blowing and air is moving
in the room it will cause inaccurate readings.
Remember, a
speaker moves air, and air moves a speaker.
When testing a woofer, it is best if the woofer is away from
boundaries and has adequate airflow at the back side of the
magnet if the speaker magnet is vented. If the magnet vent
is blocked, or if the woofer has boundaries such as sitting
on a table, it can cause inaccurate readings.
One accurate method for testing woofers is to suspend
them between two wood studs that are suspended parallel
to the ground between two tables. If this is just not
practical, you can set the woofer on a sturdy table and
place something under two sides of the magnet; making
sure the magnet vent is not blocked off.
Midrange and tweeter speakers can be measured while
sitting on a table, or by holding them in the air away from
obstacles.
Make sure the speaker is not connected to an amplifier
or damage to the IM-SG could occur!