Listening to music wirelessly with 2 speakers (Stereo Pair function)

To use the Stereo Pair function, 2 ULT TOWER 9 speakers are required. By connecting 2 speakers via a BLUETOOTH connection, you can enjoy more powerful sound.

One speaker connected via a BLUETOOTH connection plays the sound on the left channel (left side) and the other speaker connected via another BLUETOOTH connection plays the sound on the right channel (right side) to provide stereo playback.


Before operating the speaker, make sure of the following:

  • Update the pre-installed software to the latest version on each and every speaker to connect for the function.

  • When setting up the speakers for the Stereo Pair function, make sure that the 2 speakers to connect for the function are located within 1 m (3.2 ft) from each other. Stop music playback if it is in progress.

  • When playing music, make sure that all of the devices to connect for the function are located within 30 m (98.4 ft) in your line of sight.

    Maximum communication range may shorten under the following conditions.

    • There is an obstacle such as a person, metal, or wall between the speaker and BLUETOOTH device.
    • A wireless LAN device is in use near the speaker.
    • A microwave oven is in use near the speaker.
    • A device that generates electromagnetic radiation is in use near the speaker.
  1. Turn on both speakers.

    The(power) indicator on the speaker lights up.

    The(BLUETOOTH) indicator on the speaker flashes slowly.

    If the BLUETOOTH device which has been connected before is nearby, the speaker may be connected to the device automatically, and then the(BLUETOOTH) indicator on the speaker may be lit. In this case, turn off the BLUETOOTH function on the BLUETOOTH device or turn off the BLUETOOTH device.

    When the speaker has no pairing information, for example when you use the BLUETOOTH function for the first time after purchase, the(BLUETOOTH) indicator on the speaker keeps double flashing in blue.

  2. On either one of the speakers, tap STEREO PAIR on the speaker.

    You hear the notification sound and the(BLUETOOTH) indicator and the STEREO PAIR indicator on the speaker flash slowly. In about 5 seconds, you will hear the notification sound from the speaker again and the STEREO PAIR indicator on the speaker will stop flashing and stay lit.

  3. On the other speaker, tap STEREO PAIR on the speaker.

    You hear the notification sound and the(BLUETOOTH) indicator and the STEREO PAIR indicator on the speaker flash slowly.

  4. Check the state of the indicator on each of the 2 speakers.

    When the speakers are connected by the Stereo Pair function, you hear voice guidance (Left/Right) from the speaker, then the STEREO PAIR indicators on both speakers stay lit and the(BLUETOOTH) indicator on the second speaker turns off.

    Hint

    • When the 2 speakers are immediately connected by the Stereo Pair function, the(BLUETOOTH) indicator and the STEREO PAIR indicator may not flash and the STEREO PAIR indicator may light instead.

    • Set up the second speaker within 1 minute. If you do not set it up within 1 minute, the setting of the first speaker will be canceled.

  5. Operate the speaker of which the(BLUETOOTH) indicator is flashing to establish a BLUETOOTH connection with a BLUETOOTH device.

    When the BLUETOOTH connection is established, you hear the notification sound from the speaker and the activity of the(BLUETOOTH) indicator on the speaker changes from flashing to lit.

  6. Start playback on the BLUETOOTH device, and adjust the volume to an adequate level.
  7. Tap –/+ (volume) on one of the speakers to adjust the volume.

    Volume adjustment of one speaker is reflected in the other.

    For stereo playback, the speaker with the lit(BLUETOOTH) indicator is set to the left channel (left side).

To terminate the Stereo Pair function

On either one of the speakers, tap STEREO PAIR on the speaker.

You hear the notification sound and the STEREO PAIR indicator on the speaker turns off.

Hint

  • If any other BLUETOOTH device(s), such as a BLUETOOTH mouse or BLUETOOTH keyboard, is connected to the BLUETOOTH device that is connected to the speaker, there may be distorted sound or noise in the speaker output. In this case, terminate the BLUETOOTH connection between the BLUETOOTH device and other BLUETOOTH device(s).

  • When using the Stereo Pair function, the codec automatically switches to SBC.

  • Turning off the speakers does not turn off the Stereo Pair function. When one of the speakers is turned back on, it attempts to establish a connection for the Stereo Pair function. To use the Stereo Pair function, turn on the other speaker within 1 minute. When the BLUETOOTH standby function remains active* on both of the speakers, however, turning on either of the speakers automatically turns on the other and establish a connection for the Stereo Pair function between the speakers.

    * The BLUETOOTH standby function is activated only while the speaker is connected to an AC outlet by the supplied AC power cord (mains lead).

Note

  • After you restart or initialize either of the speakers while the Stereo Pair function is activated, be sure to tap STEREO PAIR on the other speaker to terminate the Stereo Pair function. If you continue to use the speaker without terminating the Stereo Pair function, you will have a problem, such as a failure to establish a BLUETOOTH connection or a sound interruption.

  • While the Stereo Pair function is activated, any attempt, which is made from the connected BLUETOOTH device, to start the second speaker fails.