T+A Elektroakustik AE 14 user manual  Phase 0, LED on the sub-woofer front panel

PHASE ( 0° - 180°)

The PHASE switch can be used to invert the phase of the output signal, i.e. turn it through 180° compared to the input signal.

The PHASE adjustor provides fine-tuning of phase over the range +90° . . . -90°.

Notes:

It may be advantageous to change the phase, depending on the position of the sub-woofer. We suggest that you adjust the settings until you obtain the most pleasing subjective impression in the bass / mid-range area.

CUTOFF FREQUENCY

This adjustor is used to adjust the separation frequency between sub-woofer and satellite loudspeakers. The larger the satellite speakers, the lower the separation frequency that should be set.

Set the separation frequency to the lowest point commensurate with the frequency response of the satellite speakers, otherwise the physical location of the sub-woofer may become apparent when listening.

Note:

This switch is only effective if the filter is switched on, i.e. the FILTER switch  must be at the 'CTRL / FILTER ON' position.

POSITION

This switch adjusts the bottom limit frequency and the level of the sub-woofer to suit the speaker's location in the listening room.

•Select the 'CORNER' setting for a corner location.

•Select the 'FREE' if the speaker is standing freely in the room.

•Select the 'WALL' if the speaker is located close to a wall.

CTRL / FILTER ON / FILTER OFF

The purpose of this switch is to switch the internal crossover on and off.

If the sub-woofer is connected to the sub-woofer output of a surround decoder which features an integral cross- over unit, the switch should be set to 'FILTER OFF'.

If the sub-woofer is operated with a signal source which does not feature an integral filter (normal stereo system), the switch must be set to 'CTRL / FILTER ON'.

If you wish to be able to switch the internal filters via the -SC LINK facility, the Filter switch must be set to the 'CTRL / FILTER ON' position.

LED on the sub-woofer front panel

LED glows red:

The sub-woofer is in stand-by mode, and is switched on automatically when a music or control signal is received.

Note:

The subwoofer will automatically switch to STANDBY when the trigger voltage goes low (CTRL mode) or approx. 60min after the music signal ends (AUTO mode).

LED glows green:

The active unit is operating.

LED flashes red:

The output stage has switched itself off due to over- loading or overheating (PROTECTION). Please lower the volume. After a while the sub-woofer will switch itself back on automatically, at which point the LED stops flashing.

LED flashes red (fast):

The subwoofer has switched itself off due to excessive overheating. To switch on the subwoofer again, switch off the mains switch and let the subwoofer cool down completely. After cooling down switch the subwoofer on again. If the LED still keeps on flashing red, the protection circuit has detected an internal fault. Please contact your  dealer to have the subwoofer checked in this case.

LED flashes green:

Power-on delay running. The sub-woofer signal is only reproduced when the delay period has elapsed!

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