Polk Audio RM6750 5.1 Channel Home Theater Speaker System Review

Polk Audio RM6750 5.1 Channel Home Theater Speaker System Review
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Gone are the days when you had to go to the movie theater to see a movie. Now, you can have it right in the comfort of your home thanks to the home theater systems that are out in the market. Home theater systems are combinations of audio and video equipment that give you the movie theater-like experience, consisting of large flat screen TV, subwoofer, and combinations of several speakers.

One major component of home theater systems is the speaker system. In a movie theater, several kinds of speakers are placed in different areas – to your left, right, center, and other speakers in all other areas in the theater. The home theater speaker system tries to duplicate this setup.

No matter how big or high is the resolution of your screen is, if your audio is not great, you are only having half the experience. Flat screen TVs have built-in speakers that provide decent sound quality, but some people give their speaker system a boost to improve their home theater experience.

Do you also want to improve your home theater experience? Well, here’s one speaker system that’s worth the price: the Polk Audio RM6750 5.1 Channel Home Theater Speaker System. What makes it stand out among the other brands? Here are the features, pros, and cons to find out…

Features of the Polk Audio RM6750 5.1 Channel Home Theater Speaker System

The Polk Audio RM6750 is composed of 6 speakers including 2 front speakers, 2 surround speakers, 1 subwoofer, and 1 center channel speaker. All these speakers create a surround sound experience that movie theaters have.

It creates distortion-free sound. In fact, the mid-channel speaker and satellite speaker use 3.25-inch polymer cone drivers. These drivers help generate noise free midrange sound.

The speakers in the middle also utilize the lightweight composite cone driver which helps produce clear, noise-free midrange and better output capability.

It has a unified grille and baffle design that creates a good look but also provides supreme room-filling sound so that everyone in the entertainment room hears vibrant, balanced sound.

The polypropylene enclosures are more than just stylish; they also contribute to the non-resonant and natural sound quality of the speakers.

The subwoofer enclosed in a small port has an 8-inch-long active balanced poly composite driver that leads to better linearity and huge music bass.

The subwoofer amplifier is built in and works with 50 watts in continuous mode or 100 watts in dynamic mode. It has active crossover that lets you adjust it for your home theater experience. This subwoofer power amp also features volume level control, low pass filter, signal sensing, automatic power, and a phase switching toggle for more convenience and control.

It is easy to mount on the wall. In fact, it has built-in keyhole slot wall mounting brackets so you don’t have to buy a separate wall mount or bracket.

The high-performance 0.5-inch dome tweeters provide the ultimate in smooth highs and imaging.

Pros and cons

The Polk Audio RM6750 has a lot of features as enumerated above. These features result in more pros and fewer cons.


  • Better linearity
  • Distortion free midrange sound
  • Built-in keyhole slot
  • Smooth highs
  • Well balanced sound
  • Huge bass
  • Controllable subwoofer power amp
  • Automatic on/off
  • Convenient controls
  • Cost-effective
  • Flexible
  • Crisp, lively sound quality


  • Subwoofer needs tweaking


The sound complements half of the home theater experience. That is why it is important to purchase a good quality speaker system. This is not difficult with the Polk Audio RM6750. It is a 6-piece surround sound package built with premium drivers and dome tweeters to create distortion-free sounds.

The subwoofer is enclosed to create large, musical bass. The built in grille and baffle design not only adds style but also improves sound dispersion with less diffraction. The entire entertainment room fills with vibrant, well balanced sound. With the Polk Audio RM6750, you don’t have to buy separate wall mount brackets, as it already comes with keyhole wall mounting brackets.

The subwoofer has a distorted sound when it is turned to the highest volume. The subwoofer needs a little tweaking to prevent noise. Overall, the performance and sound quality of Polk Audio RM6750 are satisfying and worth the price.

The Polk Audio RM6750 5.1 Channel Home Theater Speaker System is a pretty affordable speaker system on the market today. It is cost effective and generates high quality sound that satisfies audiophiles.

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