Monday, August 13, 2012

Save Polk Audio Dual 5.25 Two-Way Center Channel In-Wall Speaker - 255c-RT


Just like Matthew Polk's Signature Reference Theater (SRT) system, the components used in the RT Series benefit from Dynamic Balance, a technology which came out of a joint research project between Polk Audio and Johns Hopkins University. This laser imaging research enabled Polk to view on a microscopic level the entire vibrating surface of a driver or tweeter. By this method Polk was able to observe the resonances, which develop on speaker cones as they move. These resonances are the root cause of frequency response distortions.

As an x-ray enables a physician to discover the root cause of a symptom and prescribe the right treatment for a cure, this laser imaging technique allowed Polk engineers to find the right combinations of high tech materials, geometry and construction techniques to tune out the offending resonances. The benefit of Dynamic Balance is the dramatic improvement in the sound quality of our speakers, which every listener can appreciate. You no longer have to choose between excellent bass and smooth, clear midrange. Now you can have it all thanks to Dynamic Balance technology.

A crossover is the part of the speaker system, which directs high frequencies to the tweeter and lower range frequencies to the woofer. But crossovers can create distortion, called phase shift, which reduces clarity and degrades the ability of the speaker to create a life-like spatial image. Thanks to Dynamic Balance technology, the response of Polk's mid-woofers remains accurate at much higher frequencies than conventional drivers. This allows Polk to place the crossover frequency above the range where your ear can most easily detect phase shirt (the critical midrange). The result is clarity and imaging so outstanding that the speakers seem to melt away. You'll feel as if you're at a live performance or actually on the movie set.

And the result of all these technologies? One listen will tell you. You

Product Features

  • Specifications -
  • Shape - rectangle
  • Driver Complement - 1 silk/polymer tweeter, (2) 5-1/4 composite polymer, and drivers w/ rubber surround
  • Overall Frequency Response - 30 Hz - 27 kHz
  • Lower/Upper -3 dB Limit - 50 Hz - 25 kHz
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Friday, August 10, 2012

Order Now Polk Audio Dual 5.25 Two-Way Center Channel In-Wall Speaker - 255c-RT


Just like Matthew Polk's Signature Reference Theater (SRT) system, the components used in the RT Series benefit from Dynamic Balance, a technology which came out of a joint research project between Polk Audio and Johns Hopkins University. This laser imaging research enabled Polk to view on a microscopic level the entire vibrating surface of a driver or tweeter. By this method Polk was able to observe the resonances, which develop on speaker cones as they move. These resonances are the root cause of frequency response distortions.

As an x-ray enables a physician to discover the root cause of a symptom and prescribe the right treatment for a cure, this laser imaging technique allowed Polk engineers to find the right combinations of high tech materials, geometry and construction techniques to tune out the offending resonances. The benefit of Dynamic Balance is the dramatic improvement in the sound quality of our speakers, which every listener can appreciate. You no longer have to choose between excellent bass and smooth, clear midrange. Now you can have it all thanks to Dynamic Balance technology.

A crossover is the part of the speaker system, which directs high frequencies to the tweeter and lower range frequencies to the woofer. But crossovers can create distortion, called phase shift, which reduces clarity and degrades the ability of the speaker to create a life-like spatial image. Thanks to Dynamic Balance technology, the response of Polk's mid-woofers remains accurate at much higher frequencies than conventional drivers. This allows Polk to place the crossover frequency above the range where your ear can most easily detect phase shirt (the critical midrange). The result is clarity and imaging so outstanding that the speakers seem to melt away. You'll feel as if you're at a live performance or actually on the movie set.

And the result of all these technologies? One listen will tell you. You

Product Features

  • Specifications -
  • Shape - rectangle
  • Driver Complement - 1 silk/polymer tweeter, (2) 5-1/4 composite polymer, and drivers w/ rubber surround
  • Overall Frequency Response - 30 Hz - 27 kHz
  • Lower/Upper -3 dB Limit - 50 Hz - 25 kHz
Buy from amazon.com

Saturday, August 4, 2012

On Sale Freedom Staff Handicap Driving Hand Controls


The Freedom Staff Is the only Portable Handicap Hand Controls Product that also comes with a steering knob, so you can easily handle the wheel with your right hand while operating the hand control device with your left hand. Unlike some inferiorly designed products, you do not have to try to control the pedals with your thumb that is very difficult and will fatigue your thumb very fast. This revolutionary design allows you to accelerate by gently pulling the lever toward you and to brake by gently pushing the lever toward the floor. It is so smooth that it's actually easier than driving with pedals. Built with aircraft grade aluminum, stainless steel hardware, and convenient carry bag, your freedom staff will be your good friend for life

Product Features

  • Converts Any Vehicle, From Large Truck, to Rental Car, to Golf Cart Into A Machine That Can Be Safely and Easily Driven With Only Two Hands
  • Universal - fits most vehicles
  • Has Steering wheel knob for 1-hand steering
  • Adjustable and customizable to your preferred lenth/height and vehicle
  • Aluminum and Stainless steel for non-rust lightweight durability
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