Polk Audio

Polk Monitor XT35 Center Channel Speaker; Ultra-Low Profile

Name: Polk Monitor XT35 Center Channel Speaker; Ultra-Low Profile
Brand: Polk Audio
SKU: 12228
Price: 295.00 CAD
Availability: InStock

$295.00

A one-inch Terylene dome tweeter with four three-inch bi-laminate paper woofers, front-ported, in a cabinet 24.4 inches wide and only 4.2 high — low enough to sit under a screen without covering it. Nickel-plated five-way binding posts, keyhole slots and a 1/4-20 threaded insert for wall mounting. Excellent condition, fully tested.

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Description

Polk Monitor XT35 Center Channel Speaker; Ultra-Low Profile, 5 Driver

Slim, wall-mountable Polk Monitor XT35 center channel delivering clear, focused dialogue and wide soundstage in an ultra-low-profile form factor.

The Polk Monitor XT35 is a high-resolution, slim center channel designed to sit neatly in front of, or under, modern flat-panel TVs without blocking the screen or IR sensor. With a 1-inch Terylene dome tweeter and four 3-inch bi-laminate paper cone woofers in a front-ported enclosure, the XT35 produces surprisingly full-bodied sound for such a shallow cabinet, with crisp dialogue, good detail, and convincing midbass support for movie and TV soundtracks. This example is in excellent condition, with clean cabinet, grille, and terminals, and has been fully tested.

Hi-Res Audio certification and compatibility with Dolby Atmos and DTS:X make the XT35 a strong match for modern AVRs, whether in a 5.1 starter system or as part of a larger immersive setup. Front ports and a non-resonant MDF cabinet help maintain clarity even when the speaker is placed close to a wall or inside modern media furniture. At 87 dB sensitivity with an 8 ohm impedance and a recommended 25–200 watt amplifier range, it is easy to drive with virtually any quality home theater receiver.

Key Specifications:

Design: 2-way, slim center channel speaker

Drivers: 1 x 1-inch Terylene dome tweeter, 4 x 3-inch bi-laminate paper cone woofers

Enclosure: Front-ported (two front ports), non-resonant MDF cabinet

Total frequency response: 57 Hz – 40,000 Hz

-3 dB limits: 84 Hz – 26,000 Hz

Sensitivity: 87 dB (1 W, 1 m)

Nominal impedance: 8 ohms

Recommended amplifier power: 25 – 200 watts per channel

Inputs: Nickel-plated 5-way binding posts

Mounting: Keyhole slots and 1/4″-20 threaded insert for wall mounting

Finish: Black, detachable magnetic grille

Condition: Excellent, fully tested

Dimensions: (Width x Height x Depth) 621 x 106 x 141 mm (24.4 x 4.2 x 5.6 inches)

Weight: 6.4 kg (14 lbs)

At 14 lbs with a height just over 4 inches, the Monitor XT35 is substantial enough to feel solid and resonance-controlled yet slim enough to disappear visually under most screens. Its combination of multiple small woofers, front ports, and careful voicing allows it to deliver clear, intelligible dialogue and a broad soundstage without demanding much space.

This Polk Monitor XT35 in excellent condition is an ideal upgrade from basic TV speakers or lightweight bundled center channels, offering a clear improvement in dialogue clarity, tonal balance, and overall home theater impact.

Backed by Radique Audio’s Bumper-to-Bumper Warranty and our Perpetual Trade-Back Program, you can purchase with confidence.

$295.00

Additional information

Weight	16 lbs
Dimensions	9.6 × 28.4 × 8.2 in

About brand

Polk Audio at Radique

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Shop used Polk Get a quote on new Polk

We service Polk, too. Bring us your own Polk speakers and subwoofers for repair, servicing or restoration (speakers up to 80 lbs each), with a 90-day warranty on the work. See our Audio Service page

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.