Harman Kardon HKTS 18 Owners Manual - Page 13

OPERATION Move the Master Power Switch , (marked Power) to the "•" (On) position. The SUB-TS18 subwoofer will automatically turn itself on or go into Standby mode, depending on whether or not a signal is being sent to it by your receiver or surround processor, and provided that the AudioSense On/Off Switch ¢ is moved down so that it is in the AUTO position. When your receiver or amplifier is off, or is not sending program material to the subwoofer, the subwoofer will be in Standby mode and the LED indicator on the top of the subwoofer will turn amber. When the subwoofer senses an audio signal, it will automatically turn itself on and the LED indicator will turn blue. If the subwoofer does not sense a signal after approximately 20 minutes, it will automatically go into Standby mode. When the Audio-Sense On/Off Switch ¢ is switched to the ON position, the subwoofer will remain on, whether or not program material is playing, and the LED indicator will remain lit blue. If your receiver, processor or amplifier is equipped with a compatible trigger output, you may connect it to the SUB-TS18's External Trigger Input £. When you turn on your component, if you have set it up correctly, it will send an electrical trigger signal to the SUB-TS18, which will cause the subwoofer to turn itself on, even when the Audio-Sense On/Off Switch ¢ has been placed in the AUTO position and no audio signal is detected. The trigger signal must be between 3 and 30 volts, although it may be an AC or DC signal, and an AC signal may be 50Hz or 60Hz. If you'll be away from home for an extended period of time, or if the subwoofer will not be used, switch the Master Power Switch , to the OFF position. Volume Volume can be adjusted using the Subwoofer-Level Control ¡, as shown. Turn the control knob clockwise to increase the volume of the subwoofer, and counterclockwise to decrease the subwoofer's volume. Subwoofer Level MIN MAX Subwoofer Level MIN MAX Additional Bass Adjustments In addition to the volume adjustments described previously, the SUB-TS18 subwoofer includes a Phase Switch ∞ and a Filter Switch ™ that can be used to adjust the bass response to suit your listening environment or taste. In most situations, the Phase Switch ∞ should be left in the NORMAL position. If you suspect that the subwoofer is playing out of phase with the other speakers, which would tend to diminish bass response, try placing this switch in the REVERSE position. There is no harm in experimenting, and you may return the switch to the NORMAL position at any time. If you rearrange your room and reposition the speakers, it would be a good idea to check whether they are in phase by flipping this switch. The High-Cut (Low-Pass) Filter Switch ™ limits the frequencies of the audio signal inputted to the subwoofer to the low frequencies that the subwoofer reproduces best. This allows the subwoofer to perform more efficiently, and with superior bass reproduction, minimizing distortion that might occur if the subwoofer attempted to reproduce higher frequencies. This switch should be left in the ON position, except: 1. When the SUB Input § is being used, in which case it has no effect, or 2. When the Speaker-Level Inputs ª or the Line-Level Full-Range Inputs ¶ are being used with a crossover or filter aboard the receiver or processor. In these two circumstances, place the switch in the OFF position. OPERATION 13