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Lake-enabled amplifier reference – Lab.gruppen PLM 20K44 User Manual

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Lake Controller Operation Manual Rev 1.5.4

Lake-enabled Amplifier Reference

20.9.1 Number of Cabinets

The number of loudspeaker cabinets connected in parallel to each channel is entered in the No. of Cabinets
in Parallel field. LoadSmart uses this value for verification purposes. This data may also be entered via the
PLM or PLM+ Series front panel. Please refer to the relevant Operation Manual for further information.

20.9.2 Cable Resistance

The Cable Resistance field presents the total cable resistance that is configured for each power
output channel. The fingerprint contains a default cable type that is recalled with the file. Tapping the
CABLE RESISTANCE field opens the Cable Resistance Calculator where the individual cable parameters can
be viewed and edited.

Changes made on the Cable Resistance Calculator are reflected in the Cable Resistance field.

20.9.2.1 Calculator

The Cable Resistance Calculator provides input fields for cable length, cable gauge, contact resistance and
cable resistivity. The entered data fields give a calculated result for the total loudspeaker cable resistance in
ohms. This value is reflected in the TOTAL CABLE RESISTANCE field for the selected power output channel
in the upper table. The values for a specific cable’s properties (resistivity, gauge, etc.) can be obtained from
the cable manufacturer’s data sheets.

20.9.2.2 Ambient Temperature

The load verification and monitoring system takes ambient temperature into account when checking the
performance of the load. The ambient temperature for the system is entered in the GLOBAL CONTROL tab,
accessed from the ALL view. Please refer to section 20.9 for further details.

The TEMPERATURE setting also affects the

temperature presentation in LOAD RESULTS and

STATUS.

20.9.3 Fingerprint Label

This field presents the label of a particular fingerprint as it was set when the fingerprint was created.

20.9.4 Verify

After all required cable data is entered, tap VERIFY to initiate LoadSmart verification. Tap YES to confirm.
Load verification commences for all power output channels assigned to the selected Module. The channels