Acoustic Energy Professional Series AE22 Manuel du propriétaire - Page 6
Parcourez en ligne ou téléchargez le pdf Manuel du propriétaire pour {nom_de_la_catégorie} Acoustic Energy Professional Series AE22. Acoustic Energy Professional Series AE22 8 pages.
Imprimer la page
6. AE22 Active Controls
The AE22 Active is fitted with gain and equalisation
controls on its rear connection panel and a control
configuration display on the front panel. The controls
behave as described in the following paragraphs:
Sensitivity:
Adjusts the AE22 amplifier input
sensitivity to suit the output level
of the mixing desk, workstation or
computer interface. The three position
switch offers -3dB, 0dB and +3dB. 0dB
sensitivity is equivalent to 0.9V RMS
input for maximum rated amplifier
output at 400Hz.
LF Adjust:
Provides three options of low
frequency equalisation. Cut applies
-3dB of attenuation at 70Hz, Flat is the
un-equalised response, and Extend
applies +3dB of gain at 40Hz. LF Adjust
should normally be left Flat. Cut is
intended to model the LF characteristic
of smaller speakers, while Extend
enables the AE22 to reproduce low
frequency programme material or
information that may otherwise go
unnoticed. Maximum volume capability
is likely to be reduced when Extend is
selected.
MF Adjust:
Provides three options of mid
frequency equalisation. Cut applies -
2dB of attenuation at 400Hz, Flat is the
un-equalised response of the speaker,
and Lift applies +2dB of gain at 400Hz.
Cut and Lift can help compensate
in installations that result in an
unsatisfactory midrange balance.
HF Adjust:
Provides three options of high
frequency equalisation. Cut applies
-.5dB of attenuation from 2kHz, Flat
is the un-equalised response of the
speaker, and Lift applies +.5dB of gain
at from 2kHz. Cut and Lift can help
compensate in installations that result
in an unsatisfactory high frequency
balance.
Page 5
The setting of each control is indicated by the front panel display of the AE22
- illustrated in Diagram Four below. The front panel display also carries two clip
(peak) indicators which illuminate if either the low frequency or high frequency
amplifiers reach their output limit. The volume level should be reduced if the clip
indicators illuminate more than occasionally.
Diagram Four
LF Adjust
MF Adjust
HF Adjust
7. Listening
Before using your AE22s for the first time make one final check of the cables and
connections. If all appears well begin listening at a relatively low level to confirm
that the system is operating as expected. Only increase the volume if you are
happy with the sound at low levels. If you are unhappy, turn the system off and re-
check all the cables and connections.
AE22s may take a little time to reach normal operating temperatures and to "run-
in". It is unwise therefore to make too rapid a judgement about the performance
of the monitors. Your ears too will take some time to adjust to the new sound so
revisiting the speaker positioning is best left for a few days.
Sensitivity
Clip