1 POWER indicator
Illuminates RED when the power is being supplied.
2 Subwoofer LEVEL knob
LINE LEVEL IN POWER INDICATOR VOLUME LEVEL
Volume of subwoofer is adjusted with this knob. Turn this knob clockwise to raise the level. ¶ Starting with �MIN�, turn this knob and raise the volume slowly. If the unit is turned on with the volume set too high, it could cause hearing and/or speaker damage. Do not turn the volume up excessively high. The low frequency sound is apt to be raised too high since it is less disturbing and harder to detect than high frequencies. Caution must be taken here since the amplifier and speaker of the SFRCW220 and, S-FCRW720 will be clipped when the output of the amplifier or receiver is increased with the subwoofer level set to �MAX�.
3 Subwoofer input terminal (LINE LEVEL INPUT)
Connect SUBWOOFER OUTPUT terminal of the receiver to this terminal with the accessory RCA cord. If the output of the receiver connected to this unit is high or if the output has a low range boosted by the Bass control, Bass boost, or other means, there may be some sound distortion even if the level of the unit is lowered. In this case, lower the output level (Volume, Bass control, Bass boost) on the receiver side.
