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user manual
LMS-A6
LMS-A6 user manual
Page 8
SETTING UP AND OPERATING THE LMS-A6
This section describes the steps and checks to be taken when setting up the unit for the first time,
and the operation of all the controls and indicators. Some of the custom operating parameters will
have been set internally when unit left the factory. These are described in this section and you
must check that these are appropriate for your system.
Internal factory set parameters
Check the supplied documentation to ensure these parameters are correct for the particular
system you are setting up. Incorrect settings can damage the loudspeakers, especially the more
delicate H.F. unit. If any internal settings are wrong for your system contact your Turbosound
Dealer about obtaining the correct custom plug-in modules.
Crossover frequencies and slopes
There are two stereo frequency programming cards located internally. Card 1 handles band 1
information and card 2 band 2 & band 3 information. The crossover frequencies and slopes will
have been specified when the unit was purchased. The limiter time constants and the band edge
phase adjustment time constants will automatically have been optimised for the corner
frequencies. The relevant frequency, slope and response type is recorded on a label attached to
the respective cards and also on a label attached to the right hand side panel of your unit.
If in the future your unit is to be used to drive loudspeaker systems other than that for which it
was originally configured, then replacement frequency programming cards can easily be fitted.
Band Gain
The gain of each band is normally set to unity, but for systems where the sensitivity of the
Amplifier/Speaker combinations for each Band are different, the gain of each band may have been
set to compensate. This allows the Level Trim controls to be nominally set to centre.
Equalisation
Either static or dynamic equalisation may have been installed on an optional internal module.
Mains Supply Voltage
The unit will have been set for either 115V AC or 230V AC operation as indicated by the label on
the rear of the unit.