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). Outputs from VCRs are almost always fixed.

Hint: When connecting to the audio outputs of a VCR, remember that the VCR must be playing a tape or showing a TV channel for sound to be produced.

Hint: If your VCR (or other audio source with RCA jacks) only has a single audio output, you will need another RCA “Y” cable. It differs from the “Y” Cable Adapter included with these speakers. It will have a single male RCA plug and 2 female RCA jacks. Connect the dual RCA plugs from the included “Y” cable adapter to the 2 female RCA jacks on the second “Y” cable, and then connect the single male RCA plug of the second “Y” cable to the single audio output of the VCR.

ii. About Variable-Level Audio Outputs:

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 (stereo, etc.). 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 speakers, 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.

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Acoustic Research AW-871 operation manual Ii. About Variable-Level Audio Outputs
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AW-871 specifications

The Acoustic Research AW-871 is a sophisticated wireless speaker that exemplifies cutting-edge audio technology and modern design. Built for both audiophiles and casual listeners, the AW-871 delivers superior sound quality while incorporating the latest advancements in wireless audio streaming. Its sleek and stylish design makes it a perfect addition to any home décor.

One of the standout features of the AW-871 is its Bluetooth connectivity, which allows for seamless pairing with a variety of devices, including smartphones, tablets, and computers. This versatility ensures that users can enjoy their favorite music, podcasts, and audiobooks without the hassle of wires or complicated setups. The speaker is designed to support a wide range of Bluetooth profiles, enhancing compatibility with nearly any device.

The AW-871 boasts impressive audio performance, thanks to its advanced drivers and built-in amplifiers. It provides rich, full-bodied sound across a wide frequency range, ensuring that every note is heard with clarity and depth. Bass enthusiasts will appreciate the speaker’s ability to deliver deep, resonant lows without sacrificing overall audio fidelity. Additionally, the speaker's acoustic design minimizes distortion, providing a clean listening experience even at higher volumes.

Another remarkable aspect of the Acoustic Research AW-871 is its battery life. Engineered for long playtime, the speaker can easily last through multiple listening sessions without needing a recharge. This portability makes it an ideal choice for outdoor gatherings, parties, or just moving from room to room within the home.

In terms of user experience, the AW-871 features intuitive controls that enable easy operation. Users can adjust volume, skip tracks, and manage playback directly from the speaker or through their connected devices. The design also incorporates a built-in microphone, allowing for hands-free calls, making it a multifunctional addition to any setup.

The AW-871 also employs sophisticated noise-canceling technology, ensuring that background sounds do not interfere with the quality of the audio. Whether you are enjoying a quiet evening at home or entertaining friends, this feature enhances the overall listening experience.

In conclusion, the Acoustic Research AW-871 is a remarkable wireless speaker that combines elegant design with robust performance and user-friendly features. Whether you are an avid music lover or simply want to elevate your listening environment, the AW-871 is a compelling choice that promises to deliver satisfaction on all fronts.
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