Polk Audio 90-RT 3-Way In-Ceiling-Speaker – The Vanishing Series | Perfect for Mains, Rear or Side-Surrounds | Paintable Wafer-Thin Sheer-Grille | Dual Band-Pass Bass Ports – Low Frequencies,White
A big speaker that delivers big sound, yet vanishes into your room’s decor. The 90-RT is perfect for use as stealth mains, rears and side surrounds in a high-performance home theater, or for bringing dynamic sound to alternate zones from your main stereo listening room. Vanishing Series built-in speakers feature our exclusive wafer-thin Sheer-Grille, a magnetically-secured grille that protrudes only 7mm from its surroundings. Sheer-Grilles have nearly transparent, ultra-small perfs, and are acoustically inert, for dynamic, unimpeded sound and more uniform coverage, even in larger rooms. These speakers are timbre-matched to Polk RTi speakers to insure utterly seamless blending from speaker to speaker in systems that combine traditional and built-in speakers.
Designed to offset reflective surfaces with no sound distortions, this 3-way driver array produces BIG, FULL-RANGE PERFORMANCE FROM A DECEPTIVELY SMALL IN-CEILING SPEAKER that protrudes only 0.3″ from its surroundings
EASY TO MOUNT AND INSTALL – PERFECT FIT TEMPLATES, a precision flange, (available) pre-construction brackets and the PATENTED ROTATING CAM system ensure secure, vibration-free installation
This in-ceiling loudspeaker VANISHES INTO THE CEILING giving you a clean, clutter-free look, becoming the CENTER STAGE OF ROOM-FILLING SOUND. Paint the wafer-thin sheer grille in any color you want and it EASILY BLENDS INTO YOUR HOME DECOR
Polk’s UNWAVERING COMMITMENT, RELIABILITY, AND CRAFTSMANSHIP has made it one of the most trusted names in home audio. Bring out the best in surround sound systems and acoustic excellence, so you can SIT BACK, RELAX AND LISTEN WITH YOUR HEART!

Benefits of quality speakers
With quality speakers, you can expect a much better listening experience. One of the main advantages is that they provide clearer and more accurate sound, allowing you to hear all the details in your favorite music or movies. This is because these speakers are designed to reproduce a wider and more accurate frequency range, which means you can hear the lowest and highest sounds more clearly.
In addition, quality speakers typically have a more powerful and immersive sound, allowing you to fully immerse yourself in the listening experience. This is especially useful when watching movies, as it allows you to feel as if you are in the scene itself.
Another advantage of quality speakers is their durable and sturdy construction. Quality speakers are made from high-quality materials and are designed to withstand prolonged use. This means that you can enjoy high-quality sound for many years without having to worry about the need to replace them.
In short, quality speakers offer a much better listening experience, with clearer, more accurate and powerful sound, better bass and treble reproduction, and a durable, rugged construction for long-lasting use.
There are several types of speakers, including:
1.-Box speakers: these are the most common speakers and are used in a variety of applications, from home sound systems to professional sound equipment.
2.-Column speakers: they are similar to box speakers, but have a taller and more streamlined design.
3.-Satellite speakers: are small speakers that are used in conjunction with a subwoofer to provide surround sound.
4.-Tweeter and midrange speakers: these are specialized speakers used to reproduce high and mid-frequency sounds.
5.-Bass speakers: these are specialized speakers used to reproduce low frequency sounds, such as bass.
6.-Wireless speakers: speakers that connect to a device via a wireless connection, such as Bluetooth or Wi-Fi.
7.-Home theater speakers: these are specialized speakers used in home theater systems to provide high-quality, immersive sound.
8.-Monitor speakers: these are specialized speakers used in recording and production studios to provide accurate and detailed sound.
9.-Bookshelf speakers: are medium-sized speakers that are placed on a shelf or furniture, ideal for small environments and to complement a home sound system.