Quantum Audio QS2150, QS4150 Line Out, Power Fusing, Remote Turn-on, Adjustable Input Sensitivity

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Line Out

One set of full range line outputs have been provided for convenient connection to additional amplifiers in the system.

Power Fusing

This protects the amplifier against short circuits and excessive current.

Remote Turn-on

Automatically turns amplifier on when connected to the head unit's remote output. The amplifier will turn on and off with the head unit to save current consumption. This control also operates the reset circuit for the amplifier's protection. It must be connected with the head unit in order to reset protection circuits.

Adjustable Input Sensitivity

Allows you to fine-tune the level matching between your source and the power amplifier.

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Contents Mosfet Power Amplifiers Introduction Safety Precautions Features and Benefits Adjustable Input Sensitivity Power FusingLine Out Remote Turn-onMounting Location Connect the amplifier to the cars battery Power ConnectionsQS2150 & QS2250 Connections Stereo Mode Signal & Speaker ConnectionsQS2150 & QS2250 Connections Mono Mode QS4150 & QS4250 Connections 4 Channel Mode QS4150 & QS4250 Connections 3 Channel Mode QS4150 & QS4250 Connections 2 Channel Mode QS1500D Connections TWO Channel Connections Common Ground Radio High Level Connections OptionalGray Right + Brown Not Used Black Ground Remote Bass Control Module QS1500D Fine Tune the System Adjusting the Crossover and BassLook for Solution Trouble Shooting the SystemQS4150 SpecificationsLimited Warranty