MartinLogan Motion 2i vs. Polk Audio T15

MartinLogan Motion 2i Bookshelf Speakers Polk Audio T15 Bookshelf Speakers
$200 $150
Dimensions (H × W × D)
10.00” × 4.70” × 4.60”
254mm × 119mm × 117mm
10.63” × 6.50” × 7.25”
270mm × 165mm × 184mm
Power Type
Passive Passive
Frequency Response
110-23,000 Hz 65-20,000 Hz
ASR Score
n/a 0.3
ASR Score w/Subwoofer
n/a 3.3

Key Takeaways

TLDR Summary: In the realm of high-fidelity sound, the MartinLogan Motion 2i and Polk Audio T15 bookshelf speakers present two distinct listening experiences. The Motion 2i, with its elegant Folded Motion tweeter, delivers an exquisitely detailed soundstage, offering crisp highs and nuanced midrange that cater to audiophiles seeking clarity and precision. Conversely, the Polk T15s, while more budget-friendly, provide a warm and balanced sound with a focus on delivering a solid performance that punches above its price point. Both speakers excel within their niches, the Motion 2i for the discerning listener and the T15 for the value-conscious enthusiast.

Speaker Comparison

When it comes to creating the perfect audio landscape within the confines of your home, the choice of bookshelf speakers can make or break your auditory dreamscape. The MartinLogan Motion 2i and Polk Audio T15 are two contenders in the ring, each with their own set of strengths catering to different audience preferences. As we dissect their features, sound quality, and overall performance, it's worth remembering that what might be music to one's ears could simply be noise to another's.

Aesthetics and Build

The MartinLogan Motion 2i speakers exude a sleek, contemporary design with their signature perforated steel grilles and a piano black finish that radiates luxury. The build quality is robust, with attention to detail that suggests a premium product. On the other hand, the Polk Audio T15s present a more traditional look with a wood grain finish and a simple, no-frills aesthetic. They're solidly built, but their design language speaks to functionality over form, which may appeal to those looking for a more classic speaker appearance.

MartinLogan Motion 2i Bookshelf Speakers
MartinLogan Motion 2i arrow (at

Sound Signature and Performance

When we delve into the realm of sound, the MartinLogan Motion 2i boasts its acclaimed Folded Motion tweeters, which are known for their lightning-fast response and precision. This translates to a crisp and articulate high-end that brings out the subtleties in music. In contrast, the Polk T15 relies on its silk dome tweeters for a smooth and warm sound. While not as detailed in the upper frequencies as the Motion 2i, the T15 delivers a more relaxed sound that is forgiving and pleasant over long listening sessions.

The midrange is where the MartinLogan Motion 2i truly shines, providing a clarity and presence that brings vocals and instruments to life. Coupled with a well-balanced bass that is tight and accurate, these speakers offer a complete and engaging listening experience. The Polk T15, while maintaining a full-bodied midrange, leans towards a more bass-heavy presentation. This might be more suited to genres like rock or pop, where a punchier low-end can enhance the overall vibe of the music.

Polk Audio T15 Bookshelf Speakers
Polk Audio T15 arrow (at

Room Integration and Versatility

Speakers aren't just about sound; they're also about how they interact with the environment they're placed in. The MartinLogan Motion 2i, with its sophisticated Folded Motion tweeters, is more directional and benefits from careful placement and angling towards the listening position. This attribute can lead to a more immersive and focused soundstage when set up correctly. The Polk T15 is less demanding in terms of placement, providing a wide dispersion that fills the room effortlessly, making it a great choice for less-than-ideal room conditions or multi-purpose spaces.

In terms of power handling and amplification, the Motion 2i speakers are slightly more finicky and benefit from a higher-quality amplifier to bring out their full potential. The Polk T15s are more forgiving and can perform admirably even with modest amplification, which may be an important consideration for those on a tighter budget or less inclined to invest in additional audio equipment.

Ultimately, the choice between the MartinLogan Motion 2i and the Polk Audio T15 bookshelf speakers is not just about sound—it's about the experience you're seeking. If you're inclined towards a refined, detailed audio journey with a penchant for design and luxury, the Motion 2i might just be your sonic soulmate. On the flip side, if you're after a robust, room-friendly speaker that offers warmth and a more laid-back listening experience at an accessible price point, the Polk T15 could be the companion your ears have been waiting for. Both sets of speakers have their merits, and either could be the perfect fit for the discerning audiophile, depending on what your ears—and your heart—desire.

Check Current Prices:

MartinLogan Motion 2i Bookshelf Speakers
MartinLogan Motion 2i Bookshelf Speakers
Polk Audio T15 Bookshelf Speakers
Polk Audio T15 Bookshelf Speakers

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Disclaimer: the speaker data 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 measurements with the manufacturer before making a final purchasing decision.