Aperion Audio Intimus 5B vs. MartinLogan Motion 4i

Aperion Audio Intimus 5B Bookshelf Speakers MartinLogan Motion 4i Bookshelf Speakers
$450 $250
Dimensions (H × W × D)
12.00” × 6.75” × 8.00”
305mm × 171mm × 203mm
12.60” × 5.60” × 5.70”
320mm × 142mm × 145mm
Power Type
Passive Passive
Frequency Response
80-20,000 Hz 70-23,000 Hz
ASR Score
n/a 1.5
ASR Score w/Subwoofer
n/a 5.1

Key Takeaways

TLDR Summary: In the realm of compact high-fidelity, the Aperion Audio Intimus 5B and MartinLogan Motion 4i each champion their unique audio philosophies. The Intimus 5B delivers robust, room-filling sound, leveraging its silk-dome tweeter and woven-fiberglass woofer to create a warm, balanced listening experience. In contrast, the Motion 4i, with its distinct Folded Motion tweeter, offers an exceptionally detailed and nuanced performance, prioritizing clarity and precision. Both bookshelf speakers exude quality craftsmanship, but your choice may hinge on whether you savor the sweetness of the Intimus 5B's sound or the articulate resolution of the Motion 4i's audio finesse.

Speaker Comparison

When audiophiles seek to elevate their home listening experience, the speaker showdown between Aperion Audio Intimus 5B and MartinLogan Motion 4i often enters the fray. These two bookshelf contenders, although similar in their ambitions to deliver top-tier sound within a compact form, diverge in the paths they take to achieve acoustic excellence. It's not merely about choosing a speaker; it's about choosing an auditory philosophy.

Design and Build Quality

The Aperion Intimus 5B exudes a classic charm with its wood veneer finishes and traditional boxy shape that feels robust and enduring. Attention to detail is evident in the build, signaling a speaker that's designed to be as timeless in appearance as it is in performance. In contrast, the MartinLogan Motion 4i takes on a more futuristic aesthetic, with its slender, curved profile and the distinct perforated metal grille. The build quality of the Motion 4i is equally impressive, but it's the speaker's modern design that might appeal to those who appreciate a contemporary flair in their audio equipment.

Aperion Audio Intimus 5B Bookshelf Speakers
Aperion Audio Intimus 5B arrow (at Amazon.com)

Sound Signature and Performance

Diving into the heart of the experience, the Aperion Intimus 5B delivers warm, rich mids that resonates with the soul of vocal and string performances. The silk-dome tweeter offers a smooth treble response that's detailed without being piercing, maintaining a balanced soundstage that is both wide and precise. On the opposite corner, the MartinLogan Motion 4i boasts an advanced Folded Motion tweeter, which provides a startlingly fast transient response, allowing details to shimmer with clarity. Wherever the Intimus 5B provides warmth, the Motion 4i answers with sparkle, catering to those who revel in the crispness of high frequencies and the articulate depth of sound.

When it comes to bass response, the Intimus 5B possesses a certain heft and a more pronounced low end, which is pleasantly surprising for speakers of its size. This gives them a slight advantage in delivering full-bodied sound even without a subwoofer. The Motion 4i, though competent in its own right, leans towards a more balanced approach across the frequency spectrum, focusing on overall accuracy and a neutral tonal balance, which might necessitate a subwoofer to satisfy bass enthusiasts.

MartinLogan Motion 4i Bookshelf Speakers
MartinLogan Motion 4i arrow (at Amazon.com)

Spatial Representation and Imaging

The Intimus 5B prides itself on creating an enveloping soundscape that can fill a room with ease, owing much to its larger cabinet size and driver design. Listening to live recordings or orchestral pieces, one gets the sense of being in a larger space, with instruments placed distinctly within the soundscape. The Motion 4i, utilizing its Folded Motion tweeter and precise driver alignment, crafts an impressive soundstage that's not only wide but also pinpoint accurate in imaging. Each instrument and vocal appears to have its own distinct location, offering an intimate and highly detailed listening experience.

Ultimately, the choice between the Aperion Audio Intimus 5B and the MartinLogan Motion 4i bookshelf speakers boils down to personal preference and the specific nuances of one's auditory taste. The Intimus 5B might be the speaker of choice for those who favor a warm and immersive listening experience that's forgiving and pleasurable over extended periods. On the other hand, the Motion 4i would likely captivate those in pursuit of transparency, detail, and an avant-garde design that's as much a statement piece as it is a high-fidelity instrument.

Both speaker sets offer their unique brand of audio excellence and will provide countless hours of enjoyment. Whether you're swayed by the lush soundscapes of the Intimus 5B or the razor-sharp accuracy of the Motion 4i, your sonic journey will undoubtedly be a rewarding one. So, don your audiophile cap, sit back in your favorite listening chair, and let the music play—your ears and soul are in for a treat, irrespective of your choice.

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Aperion Audio Intimus 5B Bookshelf Speakers
Aperion Audio Intimus 5B 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.