Polk Audio RM8

Bookshelf/wall-mount speakers (Black)

  • Polk Audio RM8


Item #: 107RM8B

Review Summary

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Original price $179.99
We recommend this similar item, or shop all Bookshelf Speakers

Our take on the Polk Audio RM8

by Loren Barstow
Polk Audio

Why choose bookshelf speakers?

Bookshelf speakers may be small in size, but they can deliver surprisingly big sound. Some ultra-compact models even fit on a desktop. Most are right at home in tight spaces like shelves, so they're usually good choices for your home theater's rear channels. For the best performance, try placing bookshelf speakers on solid speaker stands to help the sound really "open up." If you want full bass impact, add a powered subwoofer and enjoy punchy sound that's as deeply satisfying as that of floor-standing speakers.

The Polk RM8 speakers team vibrant sound with a décor-friendly design. These speakers feature two woofers set at a 45-degree angle, which helps them create a large, spacious soundfield. The heavy-duty composite enclosures fight resonance for crisp and accurate sonic performance.

Use the RM8s as additional rear-channel speakers with the Polk RM85 or RM95 home theater speaker systems and enjoy even more convincing surround effects with your seven-channel receiver. Or team them with a Polk powered subwoofer to create a stereo music system for smaller rooms. Each RM8 includes both a pivoting wall bracket and tabletop stand, giving you a variety of placement options.

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  • video-shielded
  • acoustic suspension (sealed) design
  • handles up to 125 watts
  • 3/4" dome tweeter
  • dual 2-1/2" woofers
  • frequency response 130-20,000 Hz (-3dB)
  • sensitivity 89 dB
  • wall-mount bracket and tabletop stand included
  • 4-3/8"W x 7-1/2"H x 4-5/16"D
  • warranty: 5 years
  • Our 60-day money-back guarantee
Priced per pair

    Hands-on research from the Crutchfield Labs (what are the Labs?)

    Features and Specs
    Acoustic Suspension
    Video Shielded
    Tweeter Type
    Tweeter Size (inches)
    Midrange Size (inches)
    Woofer Size (inches)
    Woofer Composition
    Woofer Surround
    Power Range
    89 dB
    Impedance (Ohms)
    Frequency Response
    130-20k Hz
    Connector Type
    Spring Clip
    Bi-amp Inputs
    Height (inches)
    Width (inches)
    Depth (inches)
    Weight (pounds)
    Mounting Bracket Included
    Recommended Stand Height (inches)
    Parts Warranty
    5 Years
    Labor Warranty
    5 Years
    Product Research
    What's in the box?

    Download owner's manual

    • 2 Black RM8 satellite speakers
    • 2 Plastic mounting bracket
    • 2 Plastic satellite speaker stands
    • 2 Mounting bolts
    • Setup instructions
    • Template for wall mounting
    • Online product registration sheet

    Our Product Research Team

    At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

    Driver Technology
    Enclosure Design
    Mounting Options

    Driver Technology

    Dynamic Balance: Dynamic Balance is a proprietary Polk Audio technology using laser imaging to determine what combination of speaker materials create the least amount of resonance. Eliminating resonance in speakers results in a wide, smooth response and low distortion.

    Wide Dispersion Array Satellites: The RM8 wide dispersion array  satellite speakers create a more enveloping, less localizable surround effect because the speaker's drivers are mounted on opposing baffles for a broader and larger front-stage sound field and a more immersive and atmospheric surround field. The RM8's feature a designated left and right speaker for proper speaker placement. The speakers feature two 2-1/2" dynamic balance composite drivers mounted on different sides of the speaker's enclosure and one 3/4" silk/polymer composite dome tweeter for rich, real life imaging.

    Enclosure Design

    Enclosure: The RM8 wide dispersion array satellite speakers feature an acoustic suspension, non-resonant composite enclosure with a high-gloss finish (black or white) for great looks and natural sound. The three-sided cabinet design minimizes the visual impact on walls and shelves while the integrated baffle and anti-diffraction grille design allows maximum sound dispersion with minimum diffraction for superior imaging and room-filling sound.


    Speaker Terminals: The spring clip terminals located on the bottom of the array satellite speakers will accept pin connectors and bare wire.

    Mounting Options

    Video Shielded: The RM8 satellite speakers are magnetically (or video) shielded for safe placement near your TV or computer monitor without causing picture interference.

    Mounting Options: The RM8 wide dispersion array satellite speakers feature a removable base which allows you to place the speakers on a shelf or table top. The base adds approximately 0.4375" to the height of the speaker. The array satellite speakers can also be wall mounted using the supplied wall mount bracket which lets you rotate the speaker horizontally. In addition, the RM8 satellite speakers are compatible with Polk's SA-3 floor speaker-stands.

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    Polk Audio RM8 Reviews

    Average Customer Review:

    5 people say:

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    1 out of 5

    small plastic speakers

    Written By Dr. NO, Las Vegas, NV on Saturday, December 04, 2010
    Crutchfield Customer Review (What's this?)
    These are the worst speakers ever. They sound like what they are - small plastic speakers. I WISH I had returned them in time. Now, 4wks later they are discontinued. Money down the drain. The reviewers who say these are good have no ear for anything.
    Was this review helpful?    Yes | No
    4 out of 5


    Written By Gregory, NY on Wednesday, February 18, 2009
    Crutchfield Customer Review (What's this?)
    Exceptional sound from little speakers. I wasn't expecting such powerful sound from these size speakers and I was pleasantly suprised. If you can't have a system with a very large center and tower sides then these are the speakers for you.
    13 out of 16 people found this helpful
    Was this review helpful?    Yes | No
    5 out of 5

    Great for a 7.1 system

    Written By Jeffrey, Lincoln Park, NJ on Tuesday, February 17, 2009
    Picked these up to match the RM 95 system. Easy pick up so you know that they will work seamlessly with the RM 95. These can either be left on a shelf or wall mounted with the included mounts (you can not ceiling mount these speakers). They look and sound great. Although, I think they are a bit on the expensive side seeing that the 5.1 speaker system
    is on sale now and you get 5 speakers. Otherwise, an excellent choice.
    8 out of 8 people found this helpful
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    5 out of 5

    great speakers

    Written By Brenda, el paso, tx on Wednesday, November 26, 2008
    Crutchfield Customer Review (What's this?)
    these rm8 speakers have a very small footprint and we are using them as our front speakers connected to an Onkyo receiver. I have nothing but good things to say about them. The sound is full and rich and you will not find a better speaker for the money.
    59 out of 65 people found this helpful
    Was this review helpful?    Yes | No
    5 out of 5

    Is it raining??

    Written By Ken, Maplewood, NJ on Monday, April 14, 2008
    Crutchfield Customer Review (What's this?)

    These work great in
    my small HT, first
    time they were
    installed there was
    some rain in the
    background of the
    movie audio track
    that was not
    apparent on screen
    and I was certain
    that it had started
    to rain outside,
    very funny.

    Purchased as rear
    surrounds, 'bipole'
    design, construction
    and sound quality
    are all great, first
    tested up front as
    stereo speakers
    listening to music,
    surprisingly good,
    small size makes
    them perfect
    surrounds. Only
    negative is that the
    included wall
    brackets are not
    adjustable, so if
    you do not mount
    them exactly
    perfect, you must
    take down and redo,
    this is unacceptable
    for a $250 surround,
    a fully articulating
    bracket would make
    these perfect all
    around. Still, even
    with the effort of a
    2nd mounting, highly

    Hope this helps,
    Crutchfield is
    great, would not buy
    anything they carry
    from anyone else.

    HT Gear:

    Sony SXRD
    KDS-50A3000 50" rear
    projection HDTV
    Sony BDP-S300
    Blu-ray player
    Onkyo TX-SR705
    Polk RTi A1 front
    Polk CSi A6 center
    Polk RM8 rear
    Polk PSW111 powered
    66 out of 73 people found this helpful
    Was this review helpful?    Yes | No

    Add accessories for the Polk Audio RM8

    You'll need speaker wire to connect your speakers to your amp or receiver. No wire is included with this speaker. See all categories & accessories

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    Monster XPHP™ MKII Speaker cable with clear jacket (50 feet)
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    For a more in-depth review and enhanced detailed information on the Polk Audio RM8, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_107RM8B/Polk-Audio-RM8-Black.html ).