Page 2 - SAFETY INSTRUCTIONS; CAUTION
2 1 Read Instructions – All the safety and operatinginstructions should be read before the unit is operated. 2 Retain Instructions – The safety and operating instructionsshould be retained for future reference. 3 Heed Warnings – All warnings on the unit and in theoperating instructions should be adh...
Page 3 - English; We Want You Listening For A Lifetime (for US customers only); IMPORTANT : When connecting this product to
3 English FCC INFORMATION (for US customers only) YAMAHA and the Electronic Industries Association’sConsumer Electronics Group want you to get the most out ofyour equipment by playing it at a safe level. One that lets thesound come through loud and clear without annoying blaring ordistortion – and, ...
Page 5 - FEATURES
5 English • This subwoofer system employs YAMAHA Active ServoTechnology which YAMAHA developed for reproducinghigher quality super-bass sound. (Refer to page 11 fordetails on Active Servo Technology.)This unit does not only enhance bass frequency responseof sound output in your audio system, but, by...
Page 6 - CONNECTIONS
6 • Before attempting to make any connections to or from this unit, be sure to first switch OFF the power to this unit and to any othercomponents to which connections are being made. • When making connections between this unit and other components, be sure all connections are made correctly and cons...
Page 7 - If your amplifier has two sets of speaker terminals
7 English If your amplifier has two sets of speaker terminals For connections, cut the speaker wires as short as possible. Ifthe connections are faulty, no sound will be heard from thespeakers. Make sure that the polarity of the speaker wires iscorrect, that is, + and – markings are observed. If the...
Page 8 - CONNECTING TO LINE OUTPUT (PIN JACK) TERMINALS OF THE AMPLIFIER; If using one unit; PRE OUT
CONNECTING TO LINE OUTPUT (PIN JACK) TERMINALS OF THE AMPLIFIER • Leave the main speakers connected to the amplifier. • Amplifier line output terminals are generally labeled PRE OUT or SUBWOOFER OUT.* For PRE OUT terminal connection, the amplifier must possess at least two sets of PRE OUT terminals....
Page 9 - Front panel; POWER indicator; VOLUME control; AUTO POWER ON/OFF switch; CONTROLS AND THEIR FUNCTIONS
9 English Front panel Rear panel 1 POWER indicator Lights up when the POWER switch is turned ON, andgoes off when turned OFF. * < For U.K. and Europe models only > If the AUTO POWER ON/OFF switch on the rear panelis set to ON, this indicator is illuminated dimly when nosignal is input to this ...
Page 10 - Set the VOLUME control to minimum.; Notes; For effective adjustment of the HIGH CUT control; FREQUENCY CHARACTERISTICS; This unit’s frequency characteristics; ADJUSTING VOLUME
10 1 Set the VOLUME control to minimum. 2 Turn on the power supply to all the components. 3 Play any source and adjust the amplifier’s volume controlto the desired listening level. 4 Turn up the VOLUME control gradually to adjust thevolume balance between this unit and the main speakers. 5 Adjust th...
Page 11 - ACTIVE SERVO TECHNOLOGY
11 English ACTIVE SERVO TECHNOLOGY The theory of Active Servo Technology is based upon twomajor factors, the Helmholtz resonator and negative-impedance drive. Active Servo Processing speakersreproduce the bass frequencies through an “air woofer”,which is a port or opening in the speaker’s cabinet. T...
Page 12 - TROUBLESHOOTING
12 SYMPTOM Power is not supplied even though thePOWER switch is ON. No sound . Sound level is too low. CAUSE The power plug is not securely connected. The VOLUME control is set to 0. Speaker cables are not connected securely. Speaker cables are connected incorrectly. A source sound with few bass fre...