![]() Trimpot Adjustments.Įquipment Needed.Īdjusting R39, the LF Cancel Trimpot.Īdjusting R26, the BIAS Trimpot.Īdjusting R23 and R24, the Negative and Positive Current Limit Trimpots.Ĭhecking the Short Circuit Current. OPERATION.ĭual Mode of Operation.īridge Mode of Operation. ![]() Load Protection Circuitry.Īmplifier Protection Circuitry. Output Cable Selection.ģ.4.1 Calculating Power Losses with 8 ohm Loads.ģ.4.2 Calculating Power Losses with 4 ohm Loads.ĭamping Factor.ģ.5.1 Calculating the Maximum Length of Cable for a Specified Damping Factor.ģ.6 Speaker Protection Fuse Selection.ģ.7 Compression Driver Protection Capacitors. Operating and Service Instructions for the Altec Lansing 9444B Power Amplifierġ ELECTRICAL.ġ.1 120 V ac, 50/60 Hz Power Connections.ġ.2 220/240 V ac, 50/60 Hz Power Connections.Ģ INSTALLATION.Ģ.1 Rack Mounting.
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