Dayton Audio MK402BTX vs. MartinLogan Motion 4i

Dayton Audio MK402BTX Powered Bluetooth Bookshelf Speakers MartinLogan Motion 4i Bookshelf Speakers
$150 $250
Dimensions (H × W × D)
9.50” × 5.75” × 6.63”
241mm × 146mm × 168mm
12.60” × 5.60” × 5.70”
320mm × 142mm × 145mm
Power Type
Powered Passive
Frequency Response
60-20,000 Hz 70-23,000 Hz
ASR Score
3.7 1.5
ASR Score w/Subwoofer
6.1 5.1

Key Takeaways

TLDR Summary: In the realm of compact audio, the Dayton Audio MK402BTX offers a budget-friendly, Bluetooth-enabled experience with surprising breadth for its size. Its soundstage is commendably wide, despite some bass limitations. Meanwhile, the MartinLogan Motion 4i, a successor of high-fidelity lineage, boasts the brand's signature Folded Motion tweeter, ensuring a detailed and crisp high-end. It lacks Bluetooth but excels in acoustic clarity and precision. For audiophiles valuing nuanced reproduction, the Motion 4i stands out; for those seeking wireless convenience and solid performance without breaking the bank, the MK402BTX presents a compelling case.

Speaker Comparison

When evaluating bookshelf speakers, we often find ourselves caught between the allure of high-value offerings and the siren song of high-fidelity performance. The Dayton Audio MK402BTX and the MartinLogan Motion 4i represent these two poles beautifully. The MK402BTX is a Bluetooth-enabled, budget-friendly speaker that aims to deliver a satisfying audio experience without breaking the bank. On the other hand, the MartinLogan Motion 4i is a premium speaker, boasting the brand's signature high-resolution sound and exquisite craftsmanship. As we delve deeper into these two products, we'll discover how each set of speakers holds its ground in the competitive landscape of home audio.

Design and Build Quality

The Dayton Audio MK402BTX sports a no-frills, practical design that is straightforward yet not without its charm. The black vinyl finish gives it a classic speaker aesthetic that should fit comfortably within most home settings. In contrast, the Motion 4i from MartinLogan exudes a premium feel with its high-gloss finish and the iconic MartinLogan curved design. The build quality of the Motion 4i reflects the brand's commitment to excellence, with meticulous attention to the construction and materials used.

Dayton Audio MK402BTX Powered Bluetooth Bookshelf Speakers
Dayton Audio MK402BTX arrow (at

Connectivity and Ease of Use

One of the most apparent differences between the two is the inclusion of Bluetooth functionality in the MK402BTX. This feature allows for easy wireless streaming from various devices, making it a versatile option for users who prize convenience. The passive MartinLogan Motion 4i lacks this wireless feature, focusing instead on pure audio performance through a traditional wired connection. While this may appeal to purists, it does place the Motion 4i at a slight disadvantage for those who prefer the ease of streaming audio directly from their smartphones or tablets.

Sound Performance

Sound quality is where the MartinLogan Motion 4i truly shines. Equipped with the brand's Folded Motion tweeter, the Motion 4i offers a stunningly clear, detailed, and dynamic sound that is hard to rival within its class. The Dayton Audio MK402BTX, while not quite as refined, still offers an impressive soundstage for its price point. The MK402BTX delivers a clear and balanced sound with an emphasis on the mid-range, which makes it suitable for a variety of music genres.

MartinLogan Motion 4i Bookshelf Speakers
MartinLogan Motion 4i arrow (at

The bass response of the two speakers tells another part of the story. The MK402BTX provides a respectable low-end, but it doesn't quite have the depth and tightness that one might desire for more bass-heavy tracks. In comparison, the Motion 4i's bass response is both deeper and more precise, thanks to its well-engineered woofer and the acoustic design of the speaker cabinet. For audiophiles or those with a penchant for the lower frequencies, the Motion 4i will have a clear edge.

Value Proposition

Considering the price-to-performance ratio is essential when assessing the value proposition of these speakers. The Dayton Audio MK402BTX offers a compelling package for those on a tight budget, providing a level of performance that exceeds expectations at its price point. In contrast, the MartinLogan Motion 4i comes with a higher price tag, justified by its superior sound quality and luxurious build. For those willing to invest more in their audio experience, the Motion 4i represents a leap towards audiophile territory.

Ultimately, the choice between the Dayton Audio MK402BTX and the MartinLogan Motion 4i will come down to individual priorities and constraints. For the casual listener or someone just starting their journey into the world of high-fidelity audio, the MK402BTX is an excellent entry point. It offers a solid performance, wireless connectivity, and an unbeatable price. For the discerning audiophile with a larger budget, the MartinLogan Motion 4i stands as a testament to the brand's prowess, offering a superior sound that will satisfy even the most critical ears. Whichever route you choose, both speakers are commendable in their own right and worthy of consideration.

Check Current Prices:

Dayton Audio MK402BTX Powered Bluetooth Bookshelf Speakers
Dayton Audio MK402BTX Powered Bluetooth Bookshelf Speakers
MartinLogan Motion 4i Bookshelf Speakers
MartinLogan Motion 4i 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.