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•If the wires are pulled out of the terminal posts and the conductors come into contact with each other or surrounding devices, an excessive additional load may be placed on the amplifier. This may cause the amplifier to stop functioning, and may even cause it damage.

•Be careful to observe the correct polarity of the connections between the cables and the speaker. If the polarity (+, –) of one of the speakers (left or right) is reversed the stereo image will be severely degraded.

CAUTION

These speaker terminals carry HAZARDOUS LIVE voltage. To prevent the risk of electric shock when connecting or disconnecting the speaker cables, disconnect the power cord before touching any uninsulated parts.

7Where available, use the fixing bracket located on the back of the speaker system and attach a reinforced wire, such as stainless steel wire rope, to the studs or beams of the walls/ceiling.

•It is strongly recommended that you take double safe precautions to prevent the speaker from falling by accident.

Stud/beam

Reinforced wire (not supplied)

•When using electric screwdrivers, first find out the minimum torque required for the installation of the speaker system. Begin by setting the electric screwdriver to its minimum torque and gradually raise the torque until the screw starts to rotate. Check what torque setting you are on at this point (this will be the minimum torque required for the setup). After confirming the torque, return the rotating clamps toward the inside by reversing the direction of rotation of the screws. When doing this, take care that the screws do not come all the way out.

Rotating clamp

Speaker frame

Screw

10Attach the speaker frame to the wall/ceiling, and tighten the screws lightly (temporary attachment). At this point the rotating clamp will rotate so that the rotating clamp and frame are clamped on to the wall/ ceiling.

Gently try pulling the speaker forward and check that all of the rotating clamps have rotated outwards and are lightly clamping to the wall/ceiling.

11Adjust the mounting orientation for the primary listening position.

12Tighten the screws firmly using no more than the maximum torque specified.

Allowable maximum torque: 1.0 N⋅m

English

Fixing bracket

•Put the reinforced wire through the fixing bracket and attach to the studs or beams. Make sure the stud/ beam that you are attaching it to is strong enough to support the weight of the speaker system.

8Place sound-absorbing material (such as fiberglass) around the speakers as necessary to improve sound quality.

Use only sound-absorbing materials that comply with regional safety regulations.

9Place the speaker into the hole you have cut. Make sure the rotating clamps are turned inward.

•A Phillips screwdriver is required for loosening them.

•Screwing them in too tightly could break the rotating clamps, twist the frames, damage the walls/ceilings and make it difficult to attach the grille.

13Make sure that the screws are not crooked and that there is no gap between the wall/ceiling and frame.

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Pioneer S-IC821D, S-IC621D operating instructions Stud/beam Reinforced wire not supplied
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S-IC821D, S-IC621D specifications

Pioneer has long been a name associated with high-quality audio equipment, and their latest lineup of speakers showcases this legacy with impressive features and technology. Among these are the S-IC831-LR, S-IW531L, S-IC821D, S-IW631-LR, and S-IC621D, each designed to elevate your home audio experience.

The S-IC831-LR is a high-performance in-ceiling speaker that combines a 8-inch woofer with a 1-inch tweeter. This configuration delivers a well-rounded sound profile capable of producing deep bass and crisp highs. The speaker features a 3-way design, ensuring that all frequencies are accurately represented, perfect for both home theater and music applications. Its innovative installation mechanism allows for a seamless integration into various ceiling types, making it a versatile choice for any home.

The S-IW531L is a similarly designed in-wall speaker, featuring a 5.25-inch woofer and a 1-inch tweeter. This model focuses on enhanced spatial audio performance, making it ideal for larger rooms. Its lightweight construction and low-profile design help maintain the aesthetic of your space while providing outstanding sound quality. The speaker is equipped with a pivoting tweeter, allowing users to direct sound towards the listening area for an optimized audio experience.

Similarly, the S-IC821D is engineered for in-ceiling applications. It offers a dual 8-inch woofer configuration, allowing for an even distribution of sound across expansive areas. The advanced crossover technology used in this model ensures that audio transitions are smooth, producing a natural listening experience. This speaker is particularly recommended for those looking to create a multi-room audio system due to its exceptional power handling capabilities.

The S-IW631-LR features a 6.5-inch woofer paired with a 1-inch tweeter, aimed at delivering robust performance in home theater setups. Its design allows for seamless integration with other speakers in the Pioneer lineup, creating a cohesive soundstage. The speaker's dynamic range is further enhanced by its high-efficiency design, ensuring it can handle extensive soundscapes without distortion.

Finally, the S-IC621D rounds out this impressive lineup with its 6.5-inch woofer and a newly designed tweeter that focuses on delivering clear dialog and detailed sound effects. Ideal for both music and movies, this speaker is engineered with feedback control technology to minimize distortion, thus enhancing overall audio clarity.

Collectively, these speakers showcase Pioneer’s commitment to audio excellence, combining advanced technologies with user-friendly designs to create a superior listening experience for any home environment.
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