MartinLogan Motion 15i vs. Polk Audio T30

MartinLogan Motion 15i Bookshelf Speaker vs. Polk Audio T30 Center Channel Speaker
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MartinLogan Motion 15i Bookshelf Speaker

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Reviews & Articles

Dimensions (H × W × D)

11.40” × 6.80” × 9.50”
290 mm × 173 mm × 241 mm

A midsized rear-ported bookshelf, featuring a 5.25” low-frequency transducer and a folded motion high frequency transducer, which MartinLogan claims replicates much of the performance of their high-end elecrostatic speakers. May need to be paired with a subwoofer if sub-60Hz bass is a priority.

Polk Audio T30 Center Channel Speaker

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Reviews & Articles

Dimensions (H × W × D)

6.50” × 19.00” × 8.50”
165 mm × 483 mm × 216 mm

Good clarity and voice reproduction for an entry-level center channel speaker. Pairs well with the T50s and T15s, and good deals can be had from Polk for a complete home theater set.

Comparisons

  • The front face of the Polk Audio T30 is approximately 59.31% larger than that of the MartinLogan Motion 15i.
  • The depth of the MartinLogan Motion 15i is approximately 11.76% deeper than that of the Polk Audio T30.
  • The spatial volume of the Polk Audio T30 Center Channel Speaker is approximately 42.54% greater than that of the MartinLogan Motion 15i Bookshelf Speaker.

Notice: 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, the 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. Also, please check out our list of review links below each speaker. If you have any speakers or subwoofers you want to see added here, 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.