MartinLogan Motion 6i vs. Polk Signature Elite ES20

Speaker Comparison

When considering the centrepiece of a home theater setup, the center channel speaker often doesn't get the glamour of its tower or bookshelf counterparts, but it's the nucleus of dialogue and action, the anchor that ties the cinematic experience together. Delving into the auditory realms of MartinLogan and Polk Audio reveals two contenders vying for that pivotal role: the MartinLogan Motion 6i and the Polk Audio Signature Elite ES20. The Motion 6i is designed purely as a center channel speaker, while the ES20 is a versatile bookshelf model also capable of handling center channel duties.

Soundstage and Imaging

The MartinLogan Motion 6i is a masterclass in clarity and focus, providing pinpoint accuracy that brings dialogue to the fore with an almost palpable presence. Its Folded Motion tweeter, a hallmark of the brand, offers a detailed high-frequency response that makes movie soundtracks sparkle without ever encroaching on harshness. In contrast, the Polk Audio Signature Elite ES20 with its traditional dynamic drivers delivers a broader soundstage, offering a more forgiving sound that's pleasant for both movies and music. While it might not match the laser-focused imaging of the Motion 6i, it offers a spaciousness that's immersive in its own right.

Design and Aesthetics

Visually, the MartinLogan Motion 6i projects a modern and sleek appearance, with its curved lines and high-gloss finish. It's a speaker that not only sounds good but also complements a contemporary living space. The Polk Audio ES20, on the other hand, has a more traditional bookshelf speaker design, with a larger footprint that makes it stand out more in a room. Its build quality is robust, and it's available in several finishes to match different decors, but it doesn't quite achieve the same level of 'wow' factor in terms of looks as the MartinLogan does.

Flexibility and Functionality

The Polk Audio Signature Elite ES20's flexibility is one of its strong suits. As a bookshelf speaker, it's not confined to center channel duties; it can serve admirably as part of a stereo pair or as surrounds in a larger system. This multitasking ability is a boon for users looking to build a system over time or those who appreciate versatility in their audio equipment. The MartinLogan Motion 6i, being a dedicated center channel speaker, excels in its role but doesn't offer the same flexibility as the ES20. Its single-minded design is for those who want a specialized piece for their home theater array.

When it comes to integration, both speakers present different challenges and opportunities. The Motion 6i's unique tweeter design means that pairing it with other speakers requires careful consideration to achieve a cohesive sound. The Polk ES20, with its more conventional driver design, can blend more seamlessly with a variety of other speakers, making it a less demanding partner when creating a mixed-brand system.

Considering the bass response, the ES20 edges ahead with its larger drivers capable of delivering deeper lows. It provides a full-bodied sound even without a subwoofer, which can be quite appealing for those who enjoy a robust sound in music and the depth it adds to movie soundtracks. The Motion 6i, while competent in the lower midrange, inevitably relies on a subwoofer to fill in the lowest octaves, which is common for most center channel speakers.

In summary, the MartinLogan Motion 6i and Polk Audio Signature Elite ES20 cater to different needs within a home audio setup. The Motion 6i is the audiophile's choice for a dedicated home theater, with its exceptional clarity and dialogue reproduction. The ES20, meanwhile, is the all-rounder, offering a blend of performance and versatility for those who enjoy their speakers as much for music as for movies. Both have their place in the pantheon of home audio, and the choice ultimately comes down to the listener's priorities: specialized performance or adaptable functionality.