Introduction
MartinLogan is a name that resonates with audiophiles and home theater enthusiasts alike, known for its dedication to high-fidelity sound reproduction and innovative speaker designs. The MB10GB Motion B10 Bookshelf Speaker is a testament to this legacy, marrying sleek aesthetics with cutting-edge audio technology. As we delve into this review, we'll place the Motion B10 within the competitive landscape of bookshelf speakers, examining how it stands out in a market saturated with options.
Design
Aesthetics and Build Quality
The Motion B10, available in Gloss Black, Walnut, and Satin White, offers a premium look that complements modern and traditional decors. The gloss black variant, while a magnet for fingerprints and dust, exudes elegance and can be a striking addition to any living space. Measuring 12-1/2” x 7” x 9-3/4” and weighing 14.5lbs, the speaker boasts a compact footprint that doesn't compromise on presence or performance.
Practicality and Placement
The Motion B10’s size makes it versatile for various room configurations, whether placed on a shelf or paired with the MartinLogan STAND25 speaker stand. The inclusion of rubber feet aids in stability and vibration isolation, a crucial aspect for uncolored sound reproduction.
Features
Advanced Tweeter Technology
The Gen2 Obsidian Folded Motion Tweeter is the heart of the Motion B10's high-frequency performance. This advanced transducer delivers exceptionally detailed and clear highs without the harshness that plagues lesser designs. The Air Motion Transformer (AMT) tweeter's expansive sound dispersion creates a wide, immersive soundstage that brings recordings to life.
Connectivity and Compatibility
The custom 5-way binding posts ensure a secure and versatile connection to a wide range of amplifiers, from modestly powered units to high-current powerhouses. This flexibility makes the Motion B10 an adaptable choice for various audio setups.
Enhanced Crossover Network
An upgraded McCracken-Vojtko crossover network is employed to optimize sound performance, ensuring seamless integration between the tweeter and the woofer. This precision-engineered crossover contributes to the speaker's ability to reproduce sound with near-reference quality when properly equalized.
Sound Dispersion and Cabinet Design
The 90° x 90° tweeter dispersion pattern facilitates a broad and enveloping sound field, while the rear-ported cabinet design aids in extending the bass response. However, this design choice may require careful placement away from walls to prevent bass boominess.
Performance
Sound Quality
The MB10GB Motion B10 strikes a commendable balance in its frequency response, with minor peaks and a slight rise in the high frequencies that contribute to its detailed sound. Its fidelity remains consistent across a spectrum of reference tracks, showcasing its versatility. The speaker's Predicted In-Room (PIR) amplitude response provides a reliable estimation of its real-world performance, a boon for the discerning listener.
High-Frequency Reproduction
The high-resolution Gen2 Obsidian Folded Motion tweeter excels in reproducing the nuances of complex trebles. From the delicate shimmer of cymbals to the airy breath of a flute, the Motion B10 captures high frequencies with precision and clarity.
Midrange and Bass Response
The 5.5” woven fiberglass cone woofer, housed in a cast polymer basket, delivers articulate midrange and bass. While the speaker's low-end is respectable for its size, pairing it with a subwoofer is recommended for those seeking full-bodied bass, especially for genres like techno or orchestral pieces that demand sub-bass reproduction.
Room Acoustic Interactions
The directivity mismatch may lead to a tonal imbalance in room reflections, an issue that can be mitigated with strategic placement and room treatment. Room modes can also introduce boomy characteristics in certain frequency ranges, but this can typically be addressed with equalization and proper subwoofer integration.
Practical Considerations
Setup and Installation
Setting up the Motion B10 for optimal performance involves careful consideration of room acoustics and speaker placement. The inclusion of a threaded insert for securing the speaker to the MartinLogan STAND25 stand provides added stability and ensures the proper height for ideal sound dispersion.
Maintenance and Longevity
The glossy finish of the Motion B10, while visually striking, will require regular cleaning to maintain its luster. The removable magnetic grille and included dust covers offer protection and ease of maintenance, ensuring the speaker's longevity.
Final Thoughts
The MartinLogan MB10GB Motion B10 Bookshelf Speaker presents an impressive balance of form and function. Its strengths lie in its exceptional sound quality, expansive soundstage, and high-resolution tweeter, all housed in a compact and attractive design. While the need for a subwoofer to supplement its bass and the potential for room interaction issues may deter some, these are not uncommon challenges for bookshelf speakers and can be effectively managed.
The Motion B10's value proposition is strong, especially for listeners who prioritize clarity and precision in their audio experience. It is well-suited for a variety of uses, from critical listening to casual enjoyment, and its compatibility with a range of amplifiers and room sizes makes it a versatile choice. For those seeking a premium bookshelf speaker that delivers near-reference quality sound and can serve as both a critical listening tool and an aesthetic statement piece, the MartinLogan Motion B10 is a compelling option.