Polk Audio T15 vs. MartinLogan Motion 6i

Polk Audio T15 Bookshelf Speakers  vs. MartinLogan Motion 6i Center Channel Speaker
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Polk Audio T15 Bookshelf Speakers

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Dimensions (H × W × D)

10.63” × 6.50” × 7.25”
270 mm × 165 mm × 184 mm

Good bang for the buck, but as standalone bookshelf speakers, some may find the T15 somewhat hot on the high end and lacking in deep bass. These are probably best suited as rear-channel speakers in a home-theater setup with T50s as your right and left speakers.

MartinLogan Motion 6i Center Channel Speaker

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Dimensions (H × W × D)

5.20” × 17.50” × 4.00”
132 mm × 444 mm × 102 mm

These versatile speakers can sit on a media console or be wall-mounted. They can also be used as a center channel or mounted vertically as front left and right channels. However, with frequency response bottoming out at 120hz, listeners may look to the MartinLogan 4i or 8i for larger sounding LR speakers.

Comparisons

  • The front face of the MartinLogan Motion 6i is approximately 31.70% larger than that of the Polk Audio T15.
  • The depth of the Polk Audio T15 is approximately 81.25% deeper than that of the MartinLogan Motion 6i.
  • The spatial volume of the Polk Audio T15 is approximately 37.62% greater than that of the MartinLogan Motion 6i.

Note: the above comparisons are based on the dimensions of a bounding rectangle that would fit the front face of a speaker, or in the case of volume, measurements are based on a box that would fit the entire speaker. The measurements will not factor in individual differences such as curves or other variations in the speaker shape. Do not use these measurements as an estimate of the internal speaker volume.

More Information

SpeakerSize.com is a website that lets you compare the relative size of bookshelf, tower, and center channel audiophile and home theater speakers. We are continuously adding new speakers based on user feedback. We have also compiled a list of review sites for each speaker. If you have a speaker you want to see added on our site, please let me know.

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Disclaimer: the speaker sizes listed on this website are correct to the best of our knowledge, but we do not guarantee the accuracy of the data. Please double-check any dimensions with the manufacturer before making a final purchasing decision.