Acoustic Research AW880 User Manual

1.  Press ON/OFF button on the back of the speaker to turn each speaker off. 

2. Confirm that the speaker is off by verifying that the POWER indicator  is no 

longer illuminated.

A variable-level output, such as a headphone jack or certain RCA-type outputs, 
provides an audio signal that changes with the volume level set on the audio 
source. As the volume of the audio source is adjusted up and down, so is the 
audio signal strength sent to the transmitter. This can affect the quality of sound 
generated by the speaker, and may require an adjustment of the volume level of 
the audio source to produce a signal strong enough for the transmitter.

Hint: On most bookshelf-type or compact stereo systems, inserting a 
headphone plug into the headphone jack results in automatic cutoff of the 
regular, or hard-wired speakers.

Hint: Most TVs, regardless of age or price, have variable outputs. If you are 
unsure which of your TV audio outputs is fixed, refer to the TV instruction 
manual. Some TVs have outputs that can switch between variable and fixed. 
When given a choice, fixed is always recommended.

A fixed-level, or line-level audio output is considered ideal since it provides an 
audio signal unchanged by adjustments to the audio source volume control.

Fixed-level outputs from TVs are usually marked as ‘Constant,’ ‘Fixed,’ or ‘Select.’ 
If they are not marked as such, they are probably variable outputs (see “About 
Variable-Level Audio Outputs” below).