The center of attention.
Prepare to raise your expectations. Experience home entertainment at a new level of clarity and realism. From unobtrusive bookshelf systems to dazzlingly powerful home theaters, there's an Infinity Primus speaker that's right for every purpose and room in your home.
Most other speaker systems in the Primus price range sound as if they are spraying their sound at you - tinny, hollow and reproduced - a copy of a copy. With its MMD transducer technology and seamless component architecture working in unison to eliminate unwanted resonance modes, the Primus P253BK doesn't spray - it immerses, rolling over the listener with warm, rich sound the way live music does. Pair it with any one of our powerful MMD-equipped floorstanding loudspeakers, subwoofers, and center-channel speakers, and the Infinity Primus P253BK will fill any room with dramatic and well-defined sound. This is where Infinity sound begins, and it's well within your reach.
INFINITY PRIMUS PC251BK - At a Glance.
Two-way center-channel loudspeaker Dual 5 1/4" (133mm) MMD® low-frequency drivers 3/4" (19mm) MMD high-frequency driver Five-way binding posts Legendary Infinity engineering - speaker components seamlessly work together as an integrated system Extremely low resonance enclosures - hear music exactly as it was recorded Tweeter waveguides improve on-and-off-axis high-frequency response Precision crossover networks Patented MMD transducers significantly improve cone performance, providing ideal rigidity and resistance to precision sound
across the entire spectrum
The PC251BK's tweeter delivers crystal clear high frequencies.
Music and Movies as they were meant to be heard.
Patented MMD transducer technology improves sonic accuracy
Derived from our patented CMMD technology, the Metal Matrix Diaphragm (MMD) approach continues the Infinity tradition of using advanced materials to improve sonic accuracy. These diaphragms are much stiffer than standard metal ones - by anodizing both sides of an aluminum core, we're able to significantly improve cone performance and outperform cones made of paper, polypropylene or Kevlar material.
The patented MMD material's sandwich design makes the driver incredibly strong and lightweight.
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By virtue of its extreme rigidity and resistance to resonance, the MMD material is far more than just another diaphragm substance. It is an ideal diaphragm material for the ultimate listening experience. Sound propagates at a higher velocity in metals than in materials such as polymers and papers. Sound will travel through MMD material nearly twice as fast as it will through any other cone material - thus, moving unwanted resonances outside the audible range.
Acoustical waveguides deliver wide high-frequency response
Where you sit in a room as you listen to speakers can have just as great an effect on their sound quality as the speakers themselves.
By using an acoustical waveguide, high frequencies have a wide dispersion throughout the room.
To make sure listening to the Primus PC251BK is truly a great experience everywhere in the room and that movie dialog is crisp and intelligible, they use a proprietary "waveguide" around the tweeter. This waveguide ensures a wide dispersion of the high frequencies throughout the room while keeping them both accurate and natural-sounding. The result is an enveloping, realistic sound experience with pinpoint dialog reproduction making the PC351BK perfect for critical music and movie reproduction.
Low-Resonance enclosures do not change or alter the sound
A great sounding loudspeaker should play just what it's told to without changing or altering the sound. One way that a poorly designed loudspeaker can change the sound is when the enclosure resonates or vibrates. Resonance can change a speaker's overall tonal balance and totally alter the sound of the recording that it plays. To eliminate any enclosure resonance from the PC251BK center channel loudspeaker, Infinity engineers the enclosure using pinpoint internal bracing that increases rigidity so it does not vibrate or resonate. Vocals sound clear and natural while the soundstage is smooth and precise. Plus there's the added advantage of a sleek, narrow enclosure that's at home in nearly any room decor.
Superior Infinity engineering delivers sound perfection
Many loudspeaker manufacturers are actually loudspeaker assemblers, buying parts off the shelf from different companies with the goal of assembling them into a final product. While this might help keep costs down, it gives very little guarantee about how the speakers are going to sound. The Infinity Primus PC251BK's speaker drivers, baffles, cabinets and waveguides are all designed and engineered by Infinity to work seamlessly together as an integrated system, fitting together like pieces of a jigsaw puzzle. And since Infinity has engineered each piece for the best possible sound quality, the result is a loudspeaker that we can guarantee will dazzle you no matter what you happen to be listening to.
Infinity - Legendary reputation. Uncompromising craftsmanship and sound.
With the Infinity Primus PC251BK, you not only experience the cutting edge in high-performance transducer technology and sound reproduction, you experience the cutting edge from the makers of Infinity products - some of the world's most innovative, high-quality audio equipment. The road to the Infinity Primus series is a road lined with dozens of audio milestones: The Infinity Servo Statik 1a - the world's first powered subwoofer. The EMIT (Electromagnetic Induction Tweeter) device. The revolutionary IRS speaker - the world's first "reference" loudspeaker. The Prelude MTS speaker - the world's first powered tower speaker. Since 1968, innovative Infinity technologies, materials and manufacturing techniques have advanced the science of sound, and have set new standards in loudspeaker technology and performance. Infinity Primus Series speakers benefit from every Infinity innovation that has come before. This is where Infinity sound begins, and it's well within your reach.
What's in the Box
One Infinity PC251BK center channel speaker
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Complete your Infinity Primus Home Theater
For the ultimate Primus home theater system pair the PC251BK center channel loudspeaker with the powerful P363BK tower loudspeakers
For the most realistic movie dialog upgrade to the the flagship PC351BK center channel speaker for incredible sound quality.
When you don't have a lot of room but still want great Infinity sound quality, the Primus P153BK bookshelf speakers deliver rich, detailed sound quality that is nearly the equal of the P363BK tower speakers. They are perfect for rear speakers in a 5.1 or 7.1 home theater, as well
Give your theater the bass it deserves without taking up bunch of room with the powerful PS38BK powered subwoofer.
When you want a bit more bass than the PS38BK, step up to the larger 10" PS410BK powered subwoofer.
When you really want to rattle your walls with the most explosive home theater possible, then the PS312BK powered subwoofer is for you.