Meyer Sound 616 - Manual (Page 31)

GALILEO 616 USER GUIDE
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■ SIM 3 Bus Address: Select from 10 through 14 by rotating the Blue knob clockwise to go
up in value, and counterclockwise to go down in value.
■ SIM 3 Trim: Select from Disabled or Enabled by clicking or rotating the Blue knob.
SIM 3 Trim allows the SIM operator to directly see the extent of their gain changes. In the
SIM3 interface, Room response shows acoustic relative gain, Processor shows electronic rel-
ative gain, and Result shows a combination of both.
A post processor trim or gain stage is helpful for crossover gain setting. Crossover gain set-
ting is achieved by viewing a memory trace of one loudspeaker and setting a second to match
it at the crossover frequency. The gain of the second loudspeaker is adjusted until the traces
match. If the gain is set in the Processor then the Room response will show a different cross-
over frequency than the Result. If the gain stage is post processor, both Room and Result
agree on the frequency. For frequency based crossover, the post processor SIM 3 Trim is pre-
ferred. For relative levels between subsystems, the in processor gain stage is preferred.
NOTE: The acoustical crossover is defined as the point of equal level of two sys-
tems. If a mid-hi loudspeaker and a subwoofer are measured individually, the
crossover might appear at 200 Hz. This would be the same reading in both Room and
Result, because the processor is at unity in both. This indicates that the subwoofer must
be turned down for the crossover to be 100 Hz. If you attenuate the subwoofer in the
processor loop, the crossover will move down in the Result but will not change in the
Room response. The subwoofer will still appear to need to be turned down since the
change happened outside of the Room response. If the change is made in the output
post processor SIM 3 Trim, the crossover will drop to 100 Hz in both Room and Result.
Once the SIM 3 settings are configured, return to System Settings by pressing Cancel, or
press Menu to return to the Galileo Map.
Environment
Press the Enter button or the Blue or Green knob from System Settings to select this function.
Use the Up and Down arrows to navigate the selections, and the Blue knob to change values.
Settings include:
■ Temperature: Highlight and use Blue knob to scroll through the values, clockwise for
higher temperature and counterclockwise for lower.