Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.
All
CS1 II
reviews

Manufacturer details
- Height: 7" (17.78 cm)
- Width: 18" (45.72 cm)
- Depth: 9.625" (24.45 cm)
- Weight: 13 lbs (5.9 kg)
- Front Array Driver Complement: (2) 5.25" (13.34 cm) Bilaminate, Dynamic Balance - Mid/Woofer, (1) 1" (2.54 cm) Cloth Dome - Tweeter
- Total Frequency Response: 65 Hz → 24,000 Hz
- Nominal Impedance: 8 ohms
- Sensitivity: 89 dB (1 watt @ 1 meter)
- Recommended Amplifier Power Per Channel: 20 watts → 125 watts
- Mounting Type Available Orientations: Horizontal
Brand highlights
Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:
- They stand out for incorporating technologies typically found in their higher-end lines, such as ring radiator tweeters and Power Port designs, into more accessible product lines like the Monitor and Signature Elite series.
- Polk specifically designs many of their speakers, especially in-wall and outdoor models, to be versatile and weather-resistant, making them suitable for a variety of listening environments beyond traditional living rooms.
Select products
Monitor XT70
- Positioning: The highest performing loudspeaker in the Monitor XT line.
- Description: Offers powerful, high-resolution sound with dual 6.5" Dynamic Balance woofers and 8" passive bass radiators, making it ideal for larger rooms. Compared to the Signature Elite series, focuses on delivering impactful bass and clear highs, suitable for those who want a high-value option for music and movies without the need for advanced features like Dolby Atmos compatibility.
Signature Elite ES55
- Positioning: A high-quality floor-standing tower speaker in the Signature Elite series.
- Description: Provides high-resolution, room-filling sound with dual 6.5" Dynamic Balance woofers and Terylene dome tweeter. Unlike the Monitor XT70, offers a more refined sound with Hi-Res Audio certification, appealing to those who prioritize audio detail and clarity over sheer power.
Signature Elite ES60
- Positioning: The highest-performing loudspeaker in the Signature Elite series.
- Description: Delivers cinematic sound with three 6.5" Dynamic Balance woofers and Hi-Res Audio certified tweeter. Offers a more immersive experience compared to the ES55, with enhanced bass and a broader soundstage.
Reserve R700
- Positioning: A premium large floor-standing tower speaker in the Reserve series.
- Description: Combines dual 8" woofers and a 6.5" Turbine Cone woofer for massive impact and clarity. Stands out from the Signature Elite series with its advanced Power Port 2.0 and X-Port technology, providing cleaner bass and more defined midrange.
Legend L600
- Positioning: A flagship floor-standing tower speaker in the Legend series.
- Description: Features dual 7" drivers and a 5.25" Turbine Cone woofer, offering exceptional imaging and detail for medium-to-large rooms. Surpasses the Reserve R700 with its Pinnacle Ring Radiator tweeter and enhanced Power Port, providing ultra-clear highs and better bass.
Legend L800
- Positioning: The true flagship large floor-standing tower speaker in the Legend series.
- Description: Uses SDA-PRO technology for lifelike stereo imaging, making it the most revealing speaker Polk has ever made. Offers a more immersive experience than the L600, with dual 10" drivers and advanced stereo separation.
Our take on the brand
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Used
Polk
What if you spend more?
Product Strengths
- Sweet and smooth sound profile
- Excellent detail for the price
- Great balance and fluidity across registers
- Impressive dynamics and a wide, dimensional stereo imaging, as it can deliver a stunning soundstage
- Overall balanced tonality
- The tweeter is made from quality materials with great care
- Elegant, minimalist design that seamlessly integrates into any audio setup, with a sleek aesthetic and multiple color options
Product Considerations
- Does not feel as substantial as some other speakers in their price class
- Laid-back sound occasionally obscures some definition
- Deep bass may require a subwoofer
- The tweeter is exposed and needs to be handled with care
- Some reviewers would prefer a solid painted color rather than an imitation wood vinyl veneer
Comparisons (according to reviewers)
- Offers a lot of what makes the Vestia No. 1 great while saving money, but the Vestia No. 1 has more sparkling detail and pristine treble extension
- More compact and easier to place, though the Bowers & Wilkins 606 S3 looks more premium
- The L100 presented a more precise center image for vocals and dialog, but the Theva's more laid-back sound profile made them a better listen in most cases
- Stepped in pretty seamlessly for KEF LSX 2.1, which includes SVS's 3000 Micro subwoofer, showing impressive sonic skills, though they don't offer the same thunderous bass
- The rear-ported design is a change from the previous entry-level line, Chora, where the port was front-mounted
Takeaway: The Focal Theva No.1 is a well-rounded bookshelf speaker that offers excellent audio performance and detail for its price, with a sleek design that fits into any space. It's a great option for those looking for a hifi experience.
Video review
Our take on the brand
With a 19-inch width, the horizontally oriented A44H can sit on a standard rack shelf or be mounted above or below a display. The completely new design also enables the A44H to serve as a center speaker in immersive and 3D speaker configurations. Dual 4-inch long-throw woofers and the X-ART tweeter deliver a wide frequency range, while onboard DSP-based tuning capabilities enable you to tweak the sound easily.
Our summary
Product Strengths
- Compact, comfortable, and easy to place, with a lower profile.
- Delivers a powerful, dynamic, and precise sound that delivers an enjoyable experience.
- A rotatable tweeter allows for both horizontal and vertical placement, providing flexibility in different setups.
- On-board DSP-based room correction options, and integration with Sonarworks SoundID Reference for refined tuning.
- A wide sweet spot that is immersive and enjoyable to listen to.
Product Considerations
- The bass response may not be as present or suitable for music production with many sub-bass frequencies.
- The dial for input level adjustment is not stepped, which may make precise matching more difficult.
- Some reviewers suggest a sub may be needed depending on the material being worked with, to supplement the 4-inch woofers.
Comparisons (according to reviewers)
- Compared to the ADAM Audio A7X model, the A44H offers a similar response curve.
Takeaway: The A44H monitors offer a unique form factor, versatile placement options, and a detailed sound, making them a great option for smaller spaces or immersive setups. The built-in DSP and integration with Sonarworks provide extensive room correction and customization capabilities.
Video review
Our take on the brand
Product Strengths
- The RP-504C II is a solid center channel option, especially within a surround sound setup
- It is sonically better, more refined in the midrange and top end than previous generations, offering a balanced and open sound that can improve intelligibility
- The speaker provides good output levels with low distortion and compression, and is capable of handling power well
Product Considerations
- The RP-504C II has poor directivity in the horizontal region, which can lead to speech intelligibility issues for listeners sitting more than ±10° off-axis
- It has an elevated treble response, rising to about +3dB above average sensitivity levels above 2kHz, which may impact linearity
Comparisons (according to reviewers)
- Vs RP504C (Gen 1)—the Gen 2 has a different crossover point (650 and 1950 Hz vs 500 and 1500 Hz), refined mids and highs, and the Gen 1 has a gap that's more similar to the gap in the floor standings
- To Klipsch THX—RP-504C II sounds warmer and more natural
Takeaway: The Klipsch RP-504C II center channel speaker is a capable speaker that may increase the sonic intelligibility of a sound system. It could be a great choice for a home theater setup if clear dialogue and sound reproduction are priorities, and it has good output levels with low distortion and compression.
Video review
Our take on the brand
6-driver, 3-way passive radiator bass reflex center channel*Stand not included
Our summary
Product Strengths
- Attractive style and are not overly large, making them easy to implement into various home theater or living room setups
- Magnetic grills make removing them easy and convenient, giving the speaker a cleaner and more premium look
- The Paradigm Premier 600C delivers dialogue with presence and strength, presenting the front stage smoothly
- The Paradigm Premier 200B and 600C offer a neutral sound signature without added coloration, providing detailed and smooth mids and highs
- The Paradigm Premier 200B and 600C feature technology trickled down from Paradigm's higher-end speakers
Product Considerations
- The center channel (600C) is pretty massive, requiring a lot of space
- The speaker grills are very thin and require careful handling to avoid damage
- Cracking sounds were experienced from the speaker cabinet when picking up the center channel and tower speakers, suggesting a potential issue with the laminate quality
- Low-frequency punch may be insufficient without a subwoofer
- The rubber feet on the Paradigm Premier 200B's kept falling off
Comparisons (according to reviewers)
- Paradigm Premier were slightly underwhelming compared to the 'wow factor' of the SVS Ultra Towers and Klipsch RF7's for music
Takeaway:
The Paradigm Premier speakers offer a blend of attractive design, good sound quality, and trickle-down technology from Paradigm's higher-end models, especially when paired with a subwoofer. If the Paradigm sound and aesthetic is appealing, the Premier series is worth considering for an immersive home theater experience.
Video review
Our take on the brand
What competes at this price?
Our Summary
Product Strengths
- Designed to be minimally invasive and slip easily and undetected into any environment
- Polk has minimized the thickness, making it easy to install in most homes
- Build quality is good and the weight has been kept nice and low
- When set up correctly, it projects well and directly forward and has a slight lean to a warmer tone, but nonetheless has great clarity
Product Considerations
- Installing in-wall speakers is not easy, and professional installation is recommended
- Requires a separate amplifier and a way to connect sound to it
- Installation is not recommended if there is no space behind drywall or on solid surfaces like concrete or stone
- Polk's logo on the grill might be a minor aesthetic issue for some who want it to be inconspicuous
- Sound is not really relevant when evaluating the speaker on its own, as it's designed to be used as part of a full system
Takeaway: The Polk Audio 255c-RT is a great addition to a home theatre sound system, especially when paired with other speakers from the Polk Audio RT line. It has good build quality, and its unobtrusive design makes it a solid choice for creating a multi-directional audio experience for watching movies.
Video review
Our take on the brand
Our Summary
Product Strengths
- Stellar design with a black and gold aesthetic, including gold woofers and tweeter
- Impressive bass response, exceeding expectations for a center channel speaker
- Delivers clear dialogue in movies and shows, enhancing the viewing experience
- Expansive soundstage that creates an immersive listening experience
- RCA binding port caps are difficult to remove
Product Considerations
- The MDF veneer is sensitive and easily chipped
- Large size (20 inches wide) requires sufficient space in an entertainment unit
Takeaway: The Polk Signature Elite ES30 is a high-quality center channel speaker with great sound and a stellar design. It's a worthwhile addition to a home theater setup, especially for those seeking clear dialogue and an immersive soundstage.
Video review
Our take on the brand
Our Summary
Video review
Our take on the brand
Our Summary
Product Strengths
- Excellent resolution and detail retrieval
- Strong bass performance
- Wide soundstage
- Good imaging capabilities
- Natural and balanced sound signature
Product Considerations
- May not be ideal for those seeking a very warm sound
- Can be revealing of poor recordings
Takeaway: The product offers a balanced and detailed sound that is well-suited for a variety of music genres. Careful attention to associated equipment and recording quality is advised.
Video review
Our take on the brand
Our Summary
Product Strengths
- Good tonal balance and neutral sound, with small departures from full neutrality
- Wide soundstage and precise imaging
- Exceptional dynamic range for its size, packing a punch
- Stylish and tasteful design that complements interior decor
- Clear articulation and detailed account of vocals and instruments
Product Considerations
- Low-frequency extension isn't as deep as other similarly priced towers, bass extension is not terribly low for a floor-standing speaker of its pricing
- Best with a subwoofer for action films and those who want bass at and below 40Hz
- The center speaker is less optimal for those situated off-center, with a noticeable dip in frequency response around 2kHz in some rooms
- The on-axis measurements show a slight dip from 5kHz up to 10kHz, which makes the speaker a bit soft on sibilants
- They do not give a lot of deep bass output
Comparisons (according to reviewers)
- Vs Bowers & Wilkins 705 S3s: Vestia N°3s have better bass extension
- Vs Philharmonic BMR Tower: BMR Tower digs deeper in bass, but is larger and less efficient
- Vs Arendal 1723 S Tower: 1723 S Tower has more low-frequency extension, but sacrifices some efficiency compared to the Vestia
- Vs KEF R5 Meta: Trade-offs exist in bass extension, size, and efficiency
- Vs Bowers & Wilkins 704 S3: Trade-offs exist in bass extension, size, and efficiency
- Vs Polk Legend L600: Trade-offs exist in bass extension, size, and efficiency
Takeaway: The Vestia No.3 offers excellent sound quality and stylish design, making it a good option for those who want clear sound and a pleasing aesthetic. Adding a subwoofer can enhance the bass for a fuller listening experience, especially for home theater use.
Video review
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