The POLK CSiA4 is a high performance center channel speaker for smaller rooms and challenging placement situations. It features two 5 1/4-inch Dynamic Balance® drivers, one 1-inch Dynamic Balance dome tweeter for spot-on imaging, seamless soundstage and natural sounding voices. With the asymmetric cabinet design, you gain the flexibility of placing the CSiA4 above or below the TV and aim it at your position.

Key Features

• The proprietary curved enclosure design creates the optimal shear damping for a more rigid, acoustically inert enclosure and minimal cabinet resonances. POLK CSiA4 cabinets are designed for clean, accurate sound.
• Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes.
• Polk’s proprietary, patented Dynamic Balance technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.
• Durable, computer-modeled, injection-molded butyl rubber surrounds suppress unwanted cone resonances for a lifetime of reliable sound.
• The RTiA Cascade Tapered Crossover eliminates the comb filtering and beaming, common to multi-driver speakers, which degrades the quality of the audio and collapses the soundstage.
• Patented Acoustic Resonance Control® (ARC) technology suppresses cabinet resonance that causes distortion to ensure clear and natural sound.
• Beautiful curved furniture-grade hardwood veneer cabinet finishes, with sleek trim accents in black or cherry.
• Computer-modeled anti-diffraction grilles enhance the good looks while minimizing sonic interference.
• All Polk loudspeakers are timbre-matched within their series, designed with the same components throughout, to achieve seamless speaker-to-speaker blending effects in multi-channel systems.
• Gold-plated, professional-style 5-way binding posts, for the most secure connection options.

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• Classic Polk Audio sound quality in a compact bookshelf speaker
• Custom butyl rubber surrounds and anti-diffraction grilles produce a lifetime of reliable sound
• Polished cherry hardwood veneer cabinet finish

Beautiful Performance

The Polk RTiA1 looks and sounds simply phenomenal. Ideal for both home theater and music systems, this compact bookshelf speaker combines a 5.25” Dynamic Balance® midbass driver with a 1” Dynamic Balance dome tweeter to provide solid performance and elegant styling in a convenient size.

Dynamic Balance®

Proprietary Polk Audio technology eliminates distortion-causing driver and system resonances, so all you hear is high-quality sound.

Power Port® Plus

Patented bass venting design smoothly transitions air flow, eliminating turbulence and distortion, for deeper, more efficient bass impact.

Cascade Tapered Crossover

Innovative crossover eliminates comb filtering and beaming for higher quality audio and a more expansive sound stage.

ARC®

Patented Acoustic Resonance Control® (ARC) technology suppresses distortion-causing cabinet resonance to ensure clear and natural sound.

Klippel Motor Optimization

Laser measurement technology ensures a smooth excursion path at both ends of the volume spectrum for uniform performance at all volumes.

Timbre-Matching

Compatible with the entire Polk Audio RTi Series for seamless blending from speaker to speaker in multi-channel systems.

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Close your eyes on our largest RTiA bookshelf speaker and you’ll believe you’re listening to floor standing speakers. It features a 6 1/2-inch Dynamic Balance® woofer, 1-inch Dynamic Balance dome tweeter and 150 Watt power handling, Mark Marcantonio from Affordable Audio comments “The timbre and spacious presentation were dead on,” and “The clarity of all vocals (no nasal or fuzziness) makes for an easy and non-fatiguing listening experience.” In summary, the POLK RTIA3 is perfect for the most demanding home theatre system and the most discerning stereo listener.

Key Features

• The proprietary curved enclosure design creates the optimal shear damping for a more rigid, acoustically inert enclosure and minimal cabinet resonances. RTiA3 cabinets are designed for clean, accurate sound.
• The two 6-1/2-inch mid/woofer drivers are housed in their own tuned internal enclosures for increased clarity and lifelike detail.
• Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes.
• Polk’s proprietary, patented Dynamic Balance technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.
• Durable, computer-modelled, injection-moulded butyl rubber surrounds suppress unwanted cone resonances for a lifetime of reliable sound.
• The POLK rtia3 Cascade Tapered Crossover eliminates the comb filtering and beaming, common to multi-driver speakers, which degrades the quality of the audio and collapses the soundstage.
• Beautiful curved furniture-grade hardwood veneer cabinet finishes, with sleek trim accents in black or cherry.
• Computer-modelled anti-diffraction grilles enhance the good looks while minimizing sonic interference.
• PowerPort Plus bass venting is our patented design for smoothly transitioning the airflow from the port into your listening area, eliminating turbulence and distortion, for bigger, more musical, deep bass impact.
• Our patented Acoustic Resonance Control® (ARC) port technology tunes out the internal cabinet resonances resulting in natural uncoloured midrange reproduction.
• All Polk loudspeakers are timbre-matched within their series, designed with the same components throughout, to achieve seamless speaker-to-speaker blending effects in multi-channel systems.
• Dual gold-plated, professional-style 5-way binding posts, for the most secure connection options.
• Dual binding posts allow bi-amp or bi-wire connections, for the ultimate in customized high-performance audio.
• PowerPort Plus bass venting is our patented design for smoothly transitioning the airflow from the port into your listening area, eliminating turbulence and distortion, for bigger, more musical, deep bass impact.
• “The timbre and spacious presentation were dead on,” and “The clarity of all vocals (no nasal or fuzziness) makes for an easy and non-fatiguing listening experience.” In summary, the POLK RTIA3 is perfect for the most demanding home theatre system and the most discerning stereo listener.

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The F/XiA4’s engine is the dual Dynamic Balance® 1-inch dome tweeter design and a 5 1/4-inch Dynamic Balance driver that produces believable real-life effects at prodigious volumes. The selectable bipole/dipole function allows you to configure it to your space and 7.1 systems. The smaller cabinet enables it to fit in more places.

Key Features

• The trapezoidal-shaped cabinets aim the drivers and tweeters in opposing directions to produce a more realistically diffuse wavefront and wide, lifelike imaging of surround sound. Keyhole slots make mounting a snap.
• With the flip of a switch, our dipole/bipole circuitry changes the soundfield from direct to indirect radiation patterns enabling you to place the surround speaker beside or behind you depending on your listening room setup.
• Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes.
• Polk’s proprietary, patented Dynamic Balance technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.
• Durable, computer-modelled, injection-moulded butyl rubber surrounds suppress unwanted cone resonances for a lifetime of reliable sound.
• The POLK fxi-a4 Cascade Tapered Crossover eliminates the comb filtering and beaming, common to multi-driver speakers, which degrades the quality of the audio and collapses the soundstage.
• Patented Acoustic Resonance Control® (ARC) technology suppresses cabinet resonance that causes distortion to ensure clear and natural sound.
• Computer-modelled anti-diffraction grilles enhance the good looks while minimizing sonic interference.
• All Polk loudspeakers are timbre-matched within their series, designed with the same components throughout, to achieve seamless speaker-to-speaker blending effects in multi-channel systems.
• Gold-plated, professional-style 5-way binding posts offer the most secure connection options.

All Polk Products

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• Patented PowerPort® bass venting smoothly transitions air flow from the port into your listening area for bigger, more musical deep bass impact
• Proprietary curved enclosure design creates the optimal shear damping for a more rigid, acoustically inert enclosure and minimal cabinet resonances
• Unique angled top allows the POLK csia6 to be inverted so you can place the speaker below your TV and still enjoy great sound
• Beautiful curved furniture-grade hardwood veneer cabinet finishes, with sleek trim accents in black or cherry

The Voice of a Flagship System

The centre channel speaker is arguably the most important speaker in your home theatre system. It’s in the middle of all the action and, more importantly, it’s the anchor for all dialogue. If you want to hear what the actors and actresses are saying, buy a good centre channel speaker. The Polk CSiA6 is the perfect centrepiece for a big-screen TV or a large room. And it’s timbre-matched to the RTiA series speaker so you can build a seamless 360° experience. Its massive dual 6 1/2-inch Dynamic Balance® midbass drivers and 1-inch Dynamic Balance dome tweeter will dish out explosive sound and crisp clear dialogue. It’s best paired with the larger tower or bookshelf speakers.

Key Features

• The unique angled top allows the Polk CSiA6 to be inverted so you can place the speaker below your TV and still enjoy great sound.
• A unique kickstand assembly that provides rear support to many projection TVs (will not work with plasmas or other TVs with completely flat rears).
• The proprietary curved enclosure design creates the optimal shear damping for a more rigid, acoustically inert enclosure and minimal cabinet resonances. CSiA6 cabinets are designed for clean, accurate sound.
• Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes.
• Polk’s proprietary, patented Dynamic Balance technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.
• Durable, computer-modelled, injection-moulded butyl rubber surrounds suppress unwanted cone resonances for a lifetime of reliable sound.
• The RTiA Cascade Tapered Crossover eliminates the comb filtering and beaming, common to multi-driver speakers, which degrades the quality of the audio and collapses the soundstage.
• PowerPort® bass venting is our patented design for smoothly transitioning the airflow from the port into your listening area, eliminating turbulence and distortion, for bigger, more musical, deep bass impact. The CSiA6 features dual Powerports for added centre channel realism.
• Patented Acoustic Resonance Control® (ARC) technology suppresses cabinet resonance that causes distortion to ensure clear and natural sound.
• Beautiful curved furniture-grade hardwood veneer cabinet finishes, with sleek trim accents in black or cherry.
• Computer-modelled anti-diffraction grilles enhance the good looks while minimizing sonic interference.
• All Polk loudspeakers are timbre-matched within their series, designed with the same components throughout, to achieve seamless speaker-to-speaker blending effects in multi-channel systems.
• Dual gold-plated, professional-style 5-way binding posts, for the most secure connection options.
• Dual binding posts allow bi-amp or bi-wire connections, for the ultimate in customized high-performance audio.

All Polk Products

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The POLK fxia6 is at home in the best home theatre systems and in very large spaces. With a 6 1/2-inch Dynamic Balance® driver and two 1-inch Dynamic Balance dome tweeters, movies and multi-channel music will fill the space with well-conceived sound effects coming from all directions. These surround speakers will literally immerse you in three-dimensional sound. Configurable as bipole or dipole for discrete and diffuse sound, they work equally well behind you or beside you. For the ultimate 7.1 home theatre system, simply add a second pair.

Key Features

• The trapezoidal-shaped cabinets aim the drivers and tweeters in opposing directions to produce a more realistically diffuse wavefront and wide, lifelike imaging of surround sound. Keyhole slots make mounting a snap.
• With the flip of a switch, our dipole/bipole circuitry changes the soundfield from direct to indirect radiation patterns enabling you to place the surround speaker beside or behind you depending on your listening room setup.
• Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes.
• Polk’s proprietary, patented Dynamic Balance technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.
• Durable, computer-modelled, injection-moulded butyl rubber surrounds suppress unwanted cone resonances for a lifetime of reliable sound.
• The POLK fxia6 Cascade Tapered Crossover eliminates the comb filtering and beaming, common to multi-driver speakers, which degrades the quality of the audio and collapses the soundstage.
• Patented Acoustic Resonance Control® (ARC) technology suppresses cabinet resonance that causes distortion to ensure clear and natural sound.
• Computer-modelled anti-diffraction grilles enhance the good looks while minimizing sonic interference.
• All Polk loudspeakers are timbre-matched within their series, designed with the same components throughout, to achieve seamless speaker-to-speaker blending effects in multi-channel systems.
• Gold-plated, professional-style 5-way binding posts offer the most secure connection options.
• With a 6 1/2-inch Dynamic Balance® driver and two 1-inch Dynamic Balance dome tweeters, movies and multi-channel music will fill the space with well-conceived sound effects coming from all directions
• These surround speakers will literally immerse you in three-dimensional sound. Configurable as bipole or dipole for discrete and diffuse sound, they work equally well behind you or beside you. For the ultimate 7.1 home theatre system, simply add a second pair.

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The POLK RTIA5 is the most compact tower speaker in the RTiA Series. With two 6 1/2-inch Dynamic Balance® mid/woofer drivers, a 1-inch Dynamic Balance dome tweeter and PowerPort® Plus, it packs a punch and delivers the mind-bending thrills of Inception as well as the intoxicating groove of Manu Chao.

Key Features

• The proprietary curved enclosure design creates the optimal shear damping for a more rigid, acoustically inert enclosure and minimal cabinet resonances. POLK RTiA5 cabinets are designed for clean, accurate sound.
• The two 6-1/2-inch mid/woofer drivers are housed in their own tuned internal enclosures for increased clarity and lifelike detail.
• Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes.
• Polk’s proprietary, patented Dynamic Balance technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.
• Durable, computer-modelled, injection-moulded butyl rubber surrounds suppress unwanted cone resonances for a lifetime of reliable sound.
• The POLK RTiA Cascade Tapered Crossover eliminates the comb filtering and beaming, common to multi-driver speakers, which degrades the quality of the audio and collapses the soundstage.
• Beautiful curved furniture-grade hardwood veneer cabinet finishes, with sleek trim accents in black or cherry.
• Computer-modelled anti-diffraction grilles enhance the good looks while minimizing sonic interference.
• PowerPort Plus bass venting is our patented design for smoothly transitioning the airflow from the port into your listening area, eliminating turbulence and distortion, for bigger, more musical, deep bass impact.
• Our patented Acoustic Resonance Control® (ARC) port technology tunes out the internal cabinet resonances resulting in natural uncoloured midrange reproduction.
• All Polk loudspeakers are timbre-matched within their series, designed with the same components throughout, to achieve seamless speaker-to-speaker blending effects in multi-channel systems.
• Dual gold-plated, professional-style 5-way binding posts, for the most secure connection options.
• Dual binding posts allow bi-amp or bi-wire connections, for the ultimate in customized high-performance audio.

All Polk Products

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The POLK rtia7 is a high-performance powerhouse and the ultimate manifestation of our RTiA Series. The RTiA7 will fill even the largest room with energy and excitement. With a mind-blowing 500 Watt power capacity, these speakers can take everything you can give them and more. Watch high octane action movies in their full grandeur, or delight in intimate jazz performance.

High-Performance Floorstanding Loudspeaker POLK rtia7

• Classic Polk Audio sound quality in a floor-standing speaker
• Custom butyl rubber surrounds and anti-diffraction grilles produce a lifetime of reliable sound
• Polished hardwood veneer cabinet finishes with black or cherry trims
• Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes.
• Polk’s proprietary, patented Dynamic Balance technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.
• Durable, computer-modelled, injection-moulded butyl rubber surrounds suppress unwanted cone resonances for a lifetime of reliable sound.
• The POLK RTiA Cascade Tapered Crossover eliminates the comb filtering and beaming, common to multi-driver speakers, which degrades the quality of the audio and collapses the soundstage.
• Beautiful curved furniture-grade hardwood veneer cabinet finishes, with sleek trim accents in black or cherry.
• Computer-modelled anti-diffraction grilles enhance the good looks while minimizing sonic interference.
• PowerPort Plus bass venting is our patented design for smoothly transitioning the airflow from the port into your listening area, eliminating turbulence and distortion, for bigger, more musical, deep bass impact.

Elevated Audio

The POLK RTIA7 truly stands out. With two 7” bass drivers, a 6.5” midrange driver and a 1” dome tweeter, this impressive floor-standing loudspeaker mixes stunning performance and classic beauty to rise above the competition.

Dynamic Balance®

Proprietary Polk Audio technology eliminates distortion-causing driver and system resonances, so all you hear is high-quality sound.

Power Port® Plus

Patented bass venting design smoothly transitions air flow, eliminating turbulence and distortion, for deeper, more efficient bass impact.

Cascade Tapered Crossover

Innovative crossover eliminates comb filtering and beaming for higher quality audio and a more expansive sound stage.

Klippel Motor Optimization

Laser measurement technology ensures a smooth excursion path at both ends of the volume spectrum for uniform performance at all volumes.

Timbre-Matching

Compatible with the entire Polk Audio RTi Series for seamless blending from speaker to speaker in multi-channel systems.

ARC®

Patented Acoustic Resonance Control® (ARC) technology suppresses distortion-causing cabinet resonance to ensure clear and natural sound.

All Polk Products

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The POLK rtia9 is a high-performance powerhouse and the ultimate manifestation of our RTiA Series. Featuring Dynamic Balance® transducers—three 7-inch bass drivers, two 5 1/4-inch midrange drivers and a 1-inch high-frequency dome tweeter—the RTiA9 will fill even the largest room with energy and excitement. With a mind-blowing 500 Watt power capacity, these speakers can take everything you can give them and more. Watch high octane action movies in their full grandeur, or delight in intimate jazz performance.

Key Features

• The proprietary curved enclosure design creates the optimal shear damping for a more rigid, acoustically inert enclosure and minimal cabinet resonances. POLK rtia9 cabinets are designed for clean, accurate sound.
• The two 5 1/4-inch midrange drivers are housed in their own tuned internal enclosures for increased clarity and lifelike detail.
• Klippel motor optimization uses laser measurement technology to ensure a smooth excursion path at either end of the volume spectrum for uniform performance at both low and high volumes.
• Polk’s proprietary, patented Dynamic Balance technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.
• Durable, computer-modelled, injection-moulded butyl rubber surrounds suppress unwanted cone resonances for a lifetime of reliable sound.
• The POLK rtia9 Cascade Tapered Crossover eliminates the comb filtering and beaming, common to multi-driver speakers, which degrades the quality of the audio and collapses the soundstage.
• Beautiful curved furniture-grade hardwood veneer cabinet finishes, with sleek trim accents in black or cherry.
• Computer-modelled anti-diffraction grilles enhance the good looks while minimizing sonic interference.
• PowerPort® Plus bass venting is our patented design for smoothly transitioning the airflow from the port into your listening area, eliminating turbulence and distortion, for bigger, more musical, deep bass impact.
• All Polk loudspeakers are timbre-matched within their series, designed with the same components throughout, to achieve seamless speaker-to-speaker blending effects in multi-channel systems.
• Dual gold-plated, professional-style 5-way binding posts, for the most secure connection options.
• Dual binding posts allow bi-amp or bi-wire connections, for the ultimate in customized high-performance audio.
• The POLK rtia9 is a high-performance powerhouse and the ultimate manifestation of our RTiA Series. Featuring Dynamic Balance® transducers—three 7-inch bass drivers, two 5 1/4-inch midrange drivers and a 1-inch high-frequency dome tweeter—the RTiA9 will fill even the largest room with energy and excitement. With a mind-blowing 500 Watt power capacity, these speakers can take everything you can give them and more. Watch high octane action movies in their full grandeur, or delight in intimate jazz performance.

All Polk Products

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