Harman-Kardon Understanding Harman Kardon TS18 Subwoofer Amplifier Controls and Connections

SUB-TS18 SUBWOOFER AMPLIFIER PANEL CONTROLS AND CONNECTIONS

place itself in the Standby mode, depending on whether it is receiving an audio signal. When this switch is placed in the ON position, the SUB-TS18 will remain on, whether or not it is receiving an audio signal.

An LED located on top of the SUB-TS18 indicates whether the SUB-TS18 is in the On or Standby state when used with the Audio- Sense On/Off Switch ¢ in the AUTO position. The LED is lit blue to indicate that the SUB-TS18 is receiving an audio signal and is turned on, and the LED is lit amber to indicate that no signal is being received and the SUB-TS18 is in the Standby mode.

When the Audio-Sense On/Off Switch ¢ is in the ON position, the LED will be lit blue, whether or not an audio signal is present.

When the Master Power Switch ‚ is turned off, the LED goes dark, no matter which position the Audio-Sense On/Off Switch ¢ is in.

∞Phase Switch: This switch determines whether the SUB-TS18 subwoofer’s piston- like action moves in and out in phase with the main speakers. If the speakers were to play out of phase, the sound waves pro- duced by the subwoofer would be canceled out, reducing bass response. This phenome- non depends in part on the relative place- ment of the speakers in the room. In most cases, the Phase Switch ∞ should be left in the NORMAL position. However, it does no harm to experiment with the Phase Switch ∞, and you may leave it in the position that maximizes bass response.

§Line-Level Subwoofer (SUB) Input: Connect the subwoofer output of a receiver with digital surround sound decoding, such as Dolby® Digital or DTS®, to this input. This input bypasses the SUB-TS18’s internal crossover circuitry, and should only be used with a filtered signal. If your receiver does not have digital decoding, you should use the Line-Level Full-Range Inputs ¶ instead.

¶Line-Level Full-Range Inputs: Connect the line-level subwoofer output or preamp out- put(s) of your receiver or amplifier to these inputs. If your receiver does not have a sepa- rate subwoofer output, use a Y-adapter (not supplied) to bridge the receiver’s preamp out- put to the main amp input for that channel, and connect the long end of the adapter

to the corresponding line-level input on the SUB-TS18. If your receiver has only a single subwoofer output, you may connect it to either the left or right line-level input on the SUB-TS 18, and no Y-adapter is needed.

•Speaker-Level Outputs: If you are using the Speaker-Level Inputs ª on the SUB-TS18, you should connect these binding- post terminals to your front left and right speakers, remembering to maintain polarity by connecting the (+) terminal on the SUB-TS18 subwoofer to the (+) terminal on the speaker, and the (–) terminal on the SUB-TS18 subwoofer to the (–) terminal on the speaker. If you are not using the Speaker-Level Inputs ª, then connect your front left and right speakers directly

to your receiver or amplifier. See pages 9 through 12 for further information on speaker connections.

ªSpeaker-Level Inputs: If your receiver or amplifier does not have a line-level sub- woofer output, connect these binding-post terminals to the main left and right speaker terminals of your receiver or amplifier. Remember to maintain polarity by connecting the (+) terminal on the receiver/amplifier to the

(+) terminal on the SUB-TS18 subwoofer, and the (–) terminal on the receiver/amplifier to the

(–) terminal on the SUB-TS18 subwoofer.

‚Master Power Switch: Place this switch in the “•” position to power-on the SUB-TS18 subwoofer. The SUB-TS18 will then be either in the Standby mode or com- pletely on, depending on the position of the Audio-Sense On/Off Switch ¢.

⁄AC Power Cord: Make sure to plug this cord into an active, unswitched electrical out- let for proper operation of the SUB-TS18.

The cord should not be plugged into the accessory outlets found on some audio components.

6 SUB-TS18 SUBWOOFER AMPLIFIER PANEL CONTROLS AND CONNECTIONS