3EnglishSupplied accessories .......................................2Profile of This System .....................................3Caution ............................................................4Setting up the speakers ...................................5Connections ....................................................8Using the subwoofer (SW-P40)......................12Controls and their functions ........................12Adjustment before using the subwoofer .....13Active Servo Technology ............................15Troubleshooting (for SW-P40) ........................16Specifications ................................................17Thank you for selecting this YAMAHA NS-P400 Speaker Package system.“NS-P400” is the package number which includes the YAMAHA speaker system NS-M40, NS-C40, NS-E40 and SW-P40.This speaker package system is designed for use in a multi-channel audio system, for example a home theater system, so includesa pair of main speakers (NS-M40), a center speaker (NS-C40), a pair of effect speakers (NS-E40) and a subwoofer system (SW-P40).PROFILE OF THIS SYSTEMCONTENTS<Main speakers (NS-M40)>2-Way Acoustic-Suspension Speaker System<Center speaker (NS-C40)>Full range Acoustic-Suspension Speaker System<Effect speakers (NS-E40)>Full range Acoustic-Suspension Speaker System<Subwoofer (SW-P40)>Active Servo Processing Subwoofer System with abuilt-in power amplifier• This subwoofer system employs YAMAHA Active ServoTechnology which YAMAHA developed for reproducinghigher quality super-bass sound. (Refer to page 15 fordetails on Active Servo Technology.)• This unit can be added easily to your existing audio systemby connecting to either the speaker terminals or the lineoutput (pin jack) terminals of the amplifier.• The high frequency cut off point (HIGH CUT) controlenables you to adjust the tone balance between thesubwoofer and the main speakers.• A newly employed AUTO POWER ON/OFF switch savesyou the trouble of pressing the POWER switch when turningthis unit on or in the standby mode.