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Infinity Primus PC251BK Center Channel Speaker - Black Single

  • 80Hz - 20kHz (±3dB)
  • 8 Ohms
  • 90dB (2.83V @ 1m)
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The Infinity Primus Series – Where Infinity sound begins.

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 system 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 Infinity Primus PC251BK doesn’t spray – it immerses, rolling over the listener with warm, rich sound – the way live music does. Combine the Primus PC251BK with any one of Infinity’s powerful MMD-equipped floorstanding loudspeakers, subwoofers, and bookshelf speakers, and the Primus PC251BK will fill any room with dramatic and well-defined sound. This is where Infinity sound begins, and it’s well within your reach.

  • newegg The Infinity Primus PC251BK – a Solid Center A well-designed center-channel speaker ensures a listener can clearly hear song lyrics or dialogue above the bombast and bassy low frequencies. Boasting a high crossover frequency of 2,800Hz and a low crossover of 650Hz, the Primus PC251BK reduces strain on the respective speaker drivers, allowing them to independently focus on their respective ranges. The audio signal from the receiver is split among three different loudspeakers – low and midrange frequencies are sent to dual 5.25-inch Metal Matrix Diaphragm (MMD) woofers, and a 3/4" (19mm) MMD driver handles the high frequencies, allowing dialogue, foley tracks and high frequencies to sparkle above the other channels’ signals without interruption or interference.
  • newegg Incredible Sound, Incredible Price With the Infinity Primus PC251BK’s Metal Matrix Diaphragm technology and low resonance enclosures, it possesses excellent transient frequency response – agile and sharp – perfectly reproducing sophisticated percussion and piano modalities. You will hear music just the way it was recorded, without the speaker changing or altering the sound – precisely as it should be. Combined with its superb linear frequency response, the Primus PC251BK sparkles in the high frequencies to reproduce acoustic instruments and vocal tracks with robust midrange power to wash you in sound.
  • newegg Primus, Where a Home Theater Begins With their excellent midrange clarity and three-way capabilities, the Infinity Primus PC251BK is the perfect home theater companion. Dialogue and foley tracks are articulated exceptionally well and seem to hang in the air – even amidst the most cacophonic battle or chase scene (or Hans Zimmer score). The Primus PC251BK brings long-term, plug-and-play, trouble-free enjoyment to your home theater, unheard of at this price point – and it is the perfect complement to any 5.1- or 7.1-channel home theater system.
  • newegg MMD Transducer Technology Derived from Infinity’s 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, the manufacturer is able to significantly improve cone performance and outperform cones made of paper, polypropylene or Kevlar material. By virtue of its extreme rigidity and resistance to resonance, 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.
  • newegg Superior Infinity Engineering The Infinity Primus PC251BK’s speaker drivers, baffles, cabinets and waveguides are designed to work seamlessly together as an integrated system – fitting together like pieces of a jigsaw puzzle. It begins with our ultra-precise transducers – the beating heart of the Primus PC251BK. MMD technology doesn’t change, color or distort audio signal sound the way diaphragms made of other materials do. This combines with the Primus speaker’s low resonance enclosures to compound the precision qualities of the transducer, further eliminating mechanical distortion.
  • newegg 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


Learn more about the Infinity Entertainment Group PC251BK

Model

Brand
Infinity
Series
Primus
Model
PC251BK

Spec

Type
Center Channel Speaker
Sold As
Single
Speakers Configuration
Two-way center-channel loudspeaker
Driver Units
Dual 5-1/4" (133mm) MMD low-frequency drivers

3/4" (19mm) MMD hi-frequency driver
Frequency Response
80Hz - 20kHz (±3dB)
Nominal Impedance
8 Ohms
Sensitivity
90dB (2.83V @ 1m)
Connectors
Five-way binding posts

Features

Color
Black

Spec

Dimensions & Weight
7-5/8" x 18" x 9-5/8" (187mm x 457mm x 245mm) / 17.6 lbs. (8kg)

Features

Features
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

Advanced MMD transducers significantly improve cone performance, providing ideal rigidity and resistance to precision sound across the entire spectrum

Recommended Power Amplifier Range: 10 - 150 watts

Crossover Frequency(ies): 3,000Hz; 24dB/octave

Finish: Black Wood-Grain Enclosure

Manufacturer Warranty

Parts
5 years limited
Labor
5 years limited

Quick Info

Warranty

  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years


Customer Reviews of the Infinity Entertainment Group PC251BK

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  • Keith S.
  • 9/19/2011 9:38:09 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsSerious Upgrade

Pros: Price! Actually got this when it was fifty off regular price. Even at full retail it is worth it. This replaced an Infinity Sterling video center channel that I had for years. Made a huge difference in the clarity of dialog while watching Blu-Rays through a 5.1 receiver. Quality speaker.

Cons: Heavy. This was so much heavier than my old one that I had to pull down the shelf, mount the TV to the wall and place it on my TV stand. It is a very large speaker as well, may not fit well for everybody.

Other Thoughts: The new setup was worth the trouble of having to move things around.

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