Single Great Sounding Budget Speaker from Polk Audio R150

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Polk Audio

Single Great Sounding Budget Speaker from Polk Audio R150

Name: Single Great Sounding Budget Speaker from Polk Audio R150
Brand: Polk Audio
SKU: 10875
Price: 75.00 CAD
Availability: InStock

$75.00

A 5.25-inch Dynamic Balance woofer on a butyl surround under a 3/4-inch neodymium tweeter, ported, 65 Hz to 20 kHz at 89 dB into 8 ohms and rated to 100 watts. Video-shielded, and on 5-way binding posts rather than spring clips. This is a single speaker; a pair of the same model is listed separately.

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Description

Single Speaker. Pair available separately.

Polk’s R Series speakers offer remarkable audio performance, at a price that won’t put a kink in your budget. The R150 bookshelf speakers borrow driver technologies found in Polk’s higher-end speakers to fill small- to medium-sized rooms with detailed sound. They’re a great pick for stereo listening in a den or bedroom, or for use as surround speakers in a home theater system.

Polk’s exclusive driver design and the R150’s solidly built cabinet work together to create smooth, accurate sound with minimal distortion. Highs and mids are clear, and bass is tight and accurate. A rubber surround increases the speaker’s durability and power handling. The R150s also feature 5-way binding posts for a secure connection to your receiver or amp — a rare find for speakers in this price range. And a compact design means you can place these speakers almost anywhere.

Product highlights:

Video-shielded

Bass-reflex (ported) design

Handles up to 100 watts

Frequency response 65-20,000 Hz (-3dB)

8-ohm impedance

Sensitivity 89 dB

3/4″ Dynamic Balance® tweeter with neodymium magnet

5-1/4″ Dynamic Balance woofer with butyl rubber surround

5-way binding posts

Dimensions: 7″ W x 10-5/8″ H x 6-15/16″ D

The Polk R150’s are great sounding speakers for this price point.

Single Speaker only. Asking just $75. Pair of this same model available separately.

$75.00

Additional information

Weight	13 lbs
Dimensions	11 × 11 × 14.6 in

About brand

Polk Audio at Radique

New Polk Audio, too, quoted direct from the Canadian distributor:

Hard-to-beat pricing
Free shipping across Canada
Manufacturer's warranty
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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.