Niles Audio Pro870FX, Pro770FX manual Boundary Effect

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Figure 1. ProFX loudspeakers are placed near back corner walls of a home theater room.

Figure 2. ProFX loudspeakers are placed near back corner walls of a home theater room with an L-shaped sofa.

■If your home theater system is capable of reproducing Dolby Surround EX® sound, consider using a second pair of StageFront FX loudspeakers (on the side walls) for

an additional rear surround effect, as shown in Figure 3. Ideally, the side loudspeakers should be placed in-line with the listening position with the BIPOLE/DIPOLE controls set to DIPOLE. For a more focused surround effect, set the BIPOLE/DIPOLE controls to BIPOLE.

■If you like listening to music in surround modes (which emulate concert hall acoustics), consider using more than two surround loudspeakers to provide an extraordinary effect. With StageFront FX loudspeakers, it is easy to add another pair without affecting the decor of the room.

NOTE: FOR THIS APPLICATION, YOU WILL NEED TO USE A MORE POWERFUL AMPLIFIER THAN THE ONE BUILT INTO A TYPICAL SURROUND-SOUND RECEIVER OR AMPLIFIER. NILES MAKES A NUMBER OF SYSTEMS INTEGRATION AMPLIFIERS WITH PROPRIETARY FEATURES THAT MAKE THEM UNIQUELY SUITED TO ENHANCE YOUR EXISTING SURROUND-SOUND SYSTEM. CONSULT YOUR LOCAL NILES DEALER FOR MORE INFORMATION.

THE BOUNDARY EFFECT

Placing a loudspeaker in a corner can powerfully affect the way a listener perceives bass response. Known as the boundary effect, placing loudspeakers close to a wall/ceiling boundary or near a corner wall boundary will emphasize certain bass frequencies, while canceling others. This effect can make the loudspeaker sound excessively boomy and inaccurate to some listeners, while to others it just seems like more bass sound.

As a good rule-of-thumb, if you like listening to your current pair of loudspeakers with the bass turned up, you’ll enjoy corner placement. However, if you listen with the tone controls at neutral, try keeping the loudspeakers at least 2 or 3 feet from the boundaries of the room.

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Contents Pro870FX Pro770FX Congratulations Table of ContentsIntroduction Features and Benefits Recommended Amplifier Power Installation ConsiderationsLoudspeaker Wire Loudspeaker Placement Boundary Effect Connecting & Installing the Loudspeaker Finishing the InstallationInstructions Checking Loudspeaker PhaseSetting the BIPOLE/DIPOLE Mode Acoustic Fine TuningInstalling the Grilles Cleaning Listening AT Higher VolumesOperation Include rear mounting bracket Wiring Requirements SpecificationsPage Niles Audio CORPORATION, P.O. BOX 160818, MIAMI, Florida Limited WarrantyWarranty Registration Card Niles Audio Corporation

Pro770FX, Pro870FX specifications

Niles Audio is a revered name in the realm of high-performance audio systems, and their Pro870FX and Pro770FX models are prime examples of their commitment to quality and innovation. These in-wall and in-ceiling loudspeakers are engineered to deliver exceptional sound while seamlessly blending into any environment, making them an ideal choice for music enthusiasts and home theater aficionados alike.

The Pro870FX features an 8-inch woofer and a proprietary 1-inch tweeter that together create a rich, immersive soundstage. One of its standout features is the revolutionary rotating tweeter design, allowing for precise sound directional control. This feature is particularly beneficial in larger rooms or spaces with varying acoustics, enabling users to tailor their listening experience to suit their specific environment.

On the other hand, the Pro770FX model packs a punch with its 7-inch woofer paired with the same advanced 1-inch tweeter technology found in the Pro870FX. While slightly smaller, the Pro770FX does not compromise on audio quality or performance. With impressive power handling capabilities and an adjustable high-frequency driver, it is designed to fill rooms with clear, balanced sound.

Both models utilize a unique ported enclosure design, which enhances bass response and minimizes distortions, ensuring that every note is delivered with clarity and precision. Their robust build quality promises durability, while the innovative design makes installation straightforward. Features like the integrated dog leg clamps help secure the speakers in place, providing peace of mind for DIY enthusiasts and professionals alike.

Moreover, both the Pro870FX and Pro770FX are equipped with a paintable grille, allowing users to customize the appearance of their speakers to match the decor of their homes. This characteristic underscores Niles Audio’s focus on aesthetics without sacrificing performance.

In conclusion, Niles Audio's Pro870FX and Pro770FX models epitomize a blend of advanced audio technology and thoughtful design. Their impressive specifications, ease of installation, and flexible aesthetic options make them a fantastic choice for anyone looking to enhance their audio experience in a discreet yet powerful manner. With Niles Audio, quality sound is always an achievable goal, making these speakers a worthy investment for any audio setup.
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