Polk CS2 Series II Center Channel Speaker – Dual 6.5″ Woofers
$225.00
A Polk Audio Monitor CS2 Series II center channel speaker in black, with dual 6½-inch woofers for full-bodied, clear dialogue. It has been tested on our bench and is in very good condition.
✔️ Very good condition — black wood-grain, black cloth grille included
✔️ Dual 6½-inch Dynamic Balance woofers for clear, full-bodied dialogue
✔️ 90 dB, 8 ohms, magnetically shielded — tested on our bench
✔️ Covered by Radique Warranty
✔️ Includes Perpetual Trade-Back Program eligibility
✔️ Expertly packed for safe shipping
1 in stock
A Polk Audio Monitor CS2 Series II center channel speaker in black, with dual 6½-inch woofers for full-bodied, clear dialogue. It has been tested on our bench and is in very good condition.
What it is
Crystal-clear dialogue. Subtle on-screen sounds. Powerful effects. That’s what you can expect from Polk’s CS2, and the Series II carries it forward. It is the center speaker Polk designed to be the perfect match for its Monitor Series speakers, so it is the natural anchor for a Polk Monitor home theatre, and it sits just as comfortably in front of any other system that needs clear, full-bodied dialogue.
The CS2 Series II is a two-way design with a one-inch Dynamic Balance dome tweeter between two 6½-inch Bi-Laminate composite Dynamic Balance woofers. The woofer cones are stiff and lightweight for rich sound and low distortion, and you’ll love the way this sturdy speaker anchors the movie action to your television picture. A critically tuned flared port on the back minimizes port noise (“chuffing”); give it a few inches of breathing room from the wall behind. The enclosure is built from non-resonant MDF, and the drivers are magnetically shielded, so the CS2 can sit right beside, above or below a TV. At 90 dB sensitivity and 8 ohms, it is easy for any home theatre receiver to drive.
Around the back, a pair of five-way binding posts takes bare wire, spades, pins or banana plugs. We recommend our own Radique Audio gold-plated banana plugs, and our Custom Speaker Cable Builder will make a pair to length, ready to plug in.
The service it has had
Tested on our bench before listing.
Condition
Very Good, and free of significant marks. The black wood-grain cabinet presents well, and the black cloth grille, with its small Polk badge, is included.
A proven Polk center, ready to anchor your home theatre.
Available for pickup in Kanata, or shipped across Canada and internationally — we have sent equipment to fifteen countries in the past year, each piece packed in-house in 275 lb test double-wall boxes. Live shipping rates for your address are calculated at checkout. Backed by Radique Audio’s Bumper-to-Bumper Warranty and our Perpetual Trade-Back Program. Available for audition by appointment in Kanata.
Polk CS2 Series II Specifications
- Type: two-way bass-reflex center channel speaker, with a rear flared port
- Tweeter: 1″ Dynamic Balance dome
- Woofers: two 6½″ Bi-Laminate composite Dynamic Balance cones
- Frequency response: 60 Hz–24 kHz (−3 dB); 50 Hz–25 kHz (−6 dB)
- Sensitivity: 90 dB
- Impedance: 8 ohms
- Recommended amplifier power: 20–175 watts
- Magnetically shielded
- Terminals: one pair of five-way binding posts
- Finish: black wood-grain, with a black cloth grille
- Dimensions: (Width x Height x Depth) 21.25 x 7.75 x 11.13 inches (540 x 197 x 283 mm)
- Weight: approx. 19.9 lbs (9.0 kg)
🔌 Speaker Cable, Built on Our Own Bench
The speaker terminals here are five-way binding posts, so they take banana plugs or spade lugs and you have the run of the options. We hand-build speaker cable here in any length you need — choose the gauge and the terminations on our Custom Speaker Cable Builder. If you would rather terminate cable you already own, we make our own gold-plated banana plugs and spade connectors as well. 👉
✅ Buy With Confidence — The Radique Promise
Backed by Radique Audio’s Bumper-to-Bumper Warranty and our Perpetual Trade-Back Program. When you’re ready to move on, we’ll take it back. That’s the Radique difference.
📦 Watch how we protect your gear — our unboxing video.
📺 Curious about our business? Check out our YouTube channel for behind-the-scenes videos and more!
📞 Questions? Use the Ask a Question button above, or call us at 613-416-9995.
| Weight | 21.9 lbs |
|---|---|
| Dimensions | 15.13 × 25.25 × 11.75 in |
| Impedance | 8 Ω |
| Power Handling | 101–200 W |
| Sensitivity | 90–92 dB |
| Woofer Size | 6–7″ |
- Hard-to-beat pricing
- Free shipping across Canada
- Manufacturer's warranty
- Get a quote on new Polk
Polk Audio began in Baltimore in 1972, founded by Matthew Polk, George Klopfer and Sandy Gross. Its SDA speakers of the 1980s used a cable between the left and right speakers to widen the stereo image. We carry Polk towers, bookshelf speakers, centre channels and subwoofers. We've had more than 180 Polk listings so far, covering more than 80 different models. Every used Polk here is inspected, tested and serviced as required, then photographed in-house and covered by our Bumper-to-Bumper Warranty and Perpetual Trade-Back Program. Looking for new Polk? We also quote new Polk Audio direct from the Canadian distributor, with free shipping within Canada: request a quote below. Don't see the model you want? Tell us on First Dibs and we'll email you when one arrives.
Our five best-selling Polk models so far: the RTi10 towers, the PSW10 and PSW125 subwoofers, the RTi4 bookshelf speakers and the CSi3 centre.
The Polk story, 1972 to today
Matthew Polk, George Klopfer and Sandy Gross, graduates of Johns Hopkins, founded Polk Audio in Baltimore, Maryland, in 1972. The Monitor 7 of 1974 was their first model to succeed, and the Monitor 10 followed in 1976.
SDA. In 1984 Polk introduced SDA (Stereo Dimensional Array). A cable between the left and right speakers lets each one cancel the sound that crosses over to the wrong ear, for a wider stereo image.
Growth. Polk went public in 1986 and moved to new premises in Baltimore. It began moving manufacturing to Tijuana, Mexico, in 1988, and by 2012 Stereophile reported that Polk designed in the US and built in China.
New owners. Directed Electronics agreed to buy Polk in 2006. Polk later became part of Sound United, Masimo bought Sound United in 2022, and in September 2025 HARMAN, a Samsung company, completed its purchase of Sound United. The 2018 Legend series brought SDA back.
Which Polk is which?
Monitor (1970s to early 1990s): the Monitor 4, 5, 7, 10 and 12, with A, B and C revisions.
SDA (1984 to about 1991): the SDA-1 and SDA-2 families, CRS, SRS and the later "TL" models.
RTA (1979 to 1992): towers such as the RTA 11t, with two woofers and two passive radiators.
RT and RTi (2001 onward): Polk's lower-priced lines. Our best-selling RTi10 towers and RTi4 bookshelf speakers come from here.
CSi centres and PSW subwoofers: the CSi3 centre and the PSW10 and PSW125 subwoofers are among the Polks we sell most.
LSi (about 2001 to 2010) and LSiM (2011): Polk's flagship lines of that decade, followed by Signature (2016), Legend (2018) and Reserve (2021).
Buying used Polk: what to check
SDA cable. SDA speakers need the interconnect cable between them for the SDA effect, and early SDA models need a common-ground amplifier. Make sure the cable comes with the pair.
Tweeters. Owners report that some SL3000 tweeters on the 1989 to 1991 SDA TL models leaked their ferrofluid and failed, and that Monitor-series pairs may carry mismatched factory or replacement tweeters. Check that every tweeter plays.
Surrounds. Some early Polks used foam surrounds, which rot with age; later models such as the RTA 11t and LSiM use rubber. Press gently on each woofer surround.
Everything we list is inspected, tested and serviced as required here, and comes with our warranty.
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Your specs, your cable: choose the cable, the length and each connector, with live pricing.
- House CCA, House OFC, House Quad, Kimber 4PR or Kimber 4TC
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