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Introduction
Thank you for selecting Boston Acoustics. The M Series family of loudspeakers is designed to deliver exceptionally accurate
and natural sound reproduction from an aesthetically pleasing design. Each M Series model is specifically engineered to
provide superior acoustic results for the intended application.
The M350, M340, M250 and M25 utilize the Extended Wide Bandwidth (EWB) tweeter and Boston Lo-Q™ Cabinet
construction for pure sound reproduction and minimal interference from the cabinet. The MCenter and MSurround utilize
an innovative new Balanced Mode Radiator (BMR) high-frequency driver to provide even sound output over a remarkably
wide area for clear dialog reproduction and an immersive surround-sound field for all listeners. The look of the M Series
includes traditional and modern design cues that provide exceptional sonic results and allow them to easily integrate in a
wide variety of home décors. All of the M Series models are designed to blend seamlessly with each other and to mix and
match with other Boston Acoustics speakers providing great results regardless of the system configuration and speaker
types. We hope that you enjoy your Boston Acoustics purchase for many years to come.
Features
• Second generation Extended Wide Bandwidth (EWB) Tweeter (M350, M340, M250 & M25) to minimize phase shift and
distortion while improving pistonic motion
• Balanced Mode Radiator (BMR) high frequency diver (MCenter & MSurround) to maximize dispersion resulting in improved
dialog intelligibly and surround-sound field immersion for all listeners
• Polypropylene midrange with mass loading (M350 & M340) provides smooth overall response with minimal coloration
in the critical midrange frequencies
• Polypropylene woofers are lightweight and rigid with large motor structures for maximum low frequency output
and heat dissipation
• Boston Lo-Q™ Cabinet Design (All except MSurround & MSubwoofer) to minimize cabinet response and interference
• Leatherette covered baffle (All except MSubwoofer & MSurround in White)
• Rounded cabinet design with premium quality finish
• Solid aluminum stand-offs (M350, M340 & M250)
• 5-way gold-plated precision binding posts
• High quality crossover network filter circuit boards and components
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MCenter MSurround
M25
MSubwoofer M250 M340
M350