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Infinity Primus PC351BK Center Channel Speaker - Black Single

  • 80Hz – 20kHz (±3dB)
  • 8 Ohms
  • 91dB (2.83V @ 1 meter)
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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 PC351BK doesn’t spray – it immerses, rolling over the listener with warm, rich sound – the way live music does. Combine the Primus PC351BK with any one of Infinity’s powerful MMD-equipped floorstanding loudspeakers, subwoofers, and bookshelf speakers, and the Primus PC351BK 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 PC351BK – 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. The Primus PC351BK splits audio signals from the receiver among five different loudspeakers. Low frequencies are sent to dual 5.25-inch Metal Matrix Diaphragm (MMD) woofers. Dual 3-inch MMD midrange drivers handle the middle frequencies, allowing the tweeter and the woofer to produce sparkle in the high frequencies and boom in the low frequencies, without interruption or interference. Boasting a high crossover frequency of 2,800Hz and a low crossover of 650Hz, the Primus PC351BK reduces strain on the respective speaker drivers, allowing them to independently focus on their respective ranges.
  • newegg Incredible Sound, Incredible Price With their excellent midrange clarity and three-way capabilities, the Infinity Primus PC351BK 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 PC351BK brings long-term, plug-and-play, trouble-free enjoyment to 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 PC351BK’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 PC351BK. 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 PC351BK, 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 PC351BK

Model

Brand
Infinity
Series
Primus
Model
PC351BK

Spec

Type
Center Channel Speaker
Sold As
Single
Driver Units
Low-Frequency Driver(s): Dual 5-1/4" (133mm) MMD, magnetically shielded

Midrange Driver(s): Dual 3" (75mm) MMD, magnetically shielded

High-Frequency Driver: 3/4" (19mm) MMD, magnetically shielded
Frequency Response
80Hz – 20kHz (±3dB)
Nominal Impedance
8 Ohms
Sensitivity
91dB (2.83V @ 1 meter)
Connectors
Five-way binding posts

Features

Color
Black

Spec

Dimensions & Weight
7.38" x 23.88" x 9.25" (187mm x 606mm x 235mm) / 25 lbs. (11.4kg)

Features

Features
Recommended Power Amplifier Range: 10 - 150 watts

Crossover Frequency(ies): 650Hz, 2,800Hz; 24dB/octave

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

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 PC351BK

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  • Henry D.
  • 1/14/2014 12:23:37 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

5 out of 5 eggsA Wonderful CS Speaker

Pros: This is a three-way speaker with five speakers. My first CS speaker was two-channels with three speakers. I am an old codger who wears hearing aids. The first speaker came highly recommended, but it just didn't work for me. The infinity produces wonderfully clear and crisp dialogue without me having any concerns about volume. The extra speakers and sound separation make all the difference.

Cons: Make sure that you check the dimensions of this speaker before you buy it. It is huge and heavy. However, should you happen to forget to check the specs, do not under any circumstances send it back. Just spring for a new entertainment center. This speaker is that good.

Other Thoughts: You can sometimes find this speaker on sale here and other places. Accordingly, I'd suggest you keep your eyes open and be patient.

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