Tuesday, December 27, 2011

Ear Force X3 Headset: Chat + Wireless Game Audio, for Xbox 360

!±8± Ear Force X3 Headset: Chat + Wireless Game Audio, for Xbox 360

Brand : Turtle Beach VG | Rate : | Price :
Post Date : Dec 27, 2011 18:51:59 | N/A


With Xbox 360 Wireless Headsets you can pump up the volume without disturbing friends, family or neighbors. Wireless Xbox 360 gaming headsets allow you to freely move around as you play. Hear every nuance of the game - from an opponent sneaking up behind you to your teammate¿s voice right next to you. Trash talk online & Block out distractions at the same time. The Turtle Beach Ear Force X3 wireless xbox 360 headsets are everything you need for an amazing gaming experience.

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Tuesday, December 13, 2011

The Peripheral Heart Action (PHA) Circuit

!±8± The Peripheral Heart Action (PHA) Circuit

So, what in the world does "peripheral heart action" mean? I'm glad you asked. The term refers to a circuit where upper body and lower body exercises are alternated back and forth. What this does is force the blood flow to keep switching from different parts of the body as you change exercises emphasizing different muscle groups. It results in a more demanding workout for the cardiovascular system because the blood flow isn't able to get into an established pattern like it could if you were just working the same muscle groups.

Below I've outlined a sample program to get you started. The most important part is the concept of alternating upper and lower body (or core) exercises, you can use any exercises you want.

Example Program:

What follows is a list of eight exercises with alternate variations separated into two groups of four.
You can use dumbbells for all the exercises (or barbells or kettlebells) and just body weight for most.

Group A

Chest Press: Hold a dumbbell in each hand, lie on a bench with your feet flat on the floor. Press the dumbbells straight up to full lockout and lower them to the bottom of your chest. Alternate exercises: Barbell bench press, dumbbell bench press on a stability ball, floor press (bench press lying on the floor)

Lunge: Step forward with one leg and lower yourself until your knee almost touches the ground. Keep your back straight and vertical, don't lean forward. Use dumbbells to add resistance as necessary. Alternate exercises: Instead of the lunge you can step up onto a bench.

Standing Row: With a barbell or dumbbells, stand with your knees slightly bent. Fold at the hips and allow your torso to bend forward. Keep your back straight (don't let it round), stick your chest out and pull the weight from hanging in front of you up to just below your chest. Alternate exercises: seated cable row, row from knees on a stability ball, pull ups.

Stiff Leg Dead lift: Stand with your feet close together. Pick up 2 heavier dumbbells or a barbell from the floor and stand up straight, lower it back down. Keep your legs straight (minimal bend at the knees), this will target the hamstrings. Don't round your back. Keep your arms locked out straight as well. Alternate exercises: 2-hand kettlebell (or dumbbell) swing, leg (hamstring) curl, glute-hamstring machine.

Group B

Squat: Feet shoulder width apart, toes straight ahead. Holding 2 heavy dumbbells (or a barbell on your back if you have access to a rack), squat down until your thighs are parallel to the ground and stand back up. Alternate exercises: front squat, leg press, body weight squat (higher repetitions), one-leg squat (rear leg up on bench or chair)

Biceps Curl: Stand with feet shoulder width apart, curl dumbbells or a barbell from arms extended position to your shoulder and down. Keep your upper body still (no leaning backwards). Alternate exercises: Chin up (palms facing you), hammer curl

Sit Ups: Sit with knees bent at a 90 degree angle, feet flat on floor. Do not hold your feet in any way. Slowly sit all the way up and back down. Place your arms by your side or even use them to help pull yourself up if it is too hard (remember your feet aren't braced). Alternate exercises: incline sit up, leg raises, weighted sit ups, stability ball sit ups.

Close Hand Push Ups: Get into the push up position either from on your knees or your toes depending on your ability. Place your hands close together so they are nearly touching. Lower your chest to the ground and keep your body moving as one unit. Push back up to full lock out. This exercise emphasizes the triceps muscle. You can elevate your feet or add weight to make it harder. Alternate exercises: triceps kickback, triceps curl, skull crushers

How to use the Program:

Go through each of the 4 exercises in the group back to back with no rest in between (this is called a "superset"). When you have completed all 4 exercises, rest for a short period of time, then repeat the circuit two more times in the same manner (for a total of 3 times through). After the 3rd time, rest a short period then switch to the exercises in group B and go through those 4 new exercises in the same manner as group A for 3 sets.

Rest periods: Initially, rest for one minute in between each circuit and in between switching from circuit A to B. Gradually decrease the rest periods until you can complete the whole thing with only 30 seconds rest in between each circuit. If you can't get through the 4 exercises in a row with no rest, that's OK in the beginning. Take a few breaths in between exercises as needed.

Weight/number of repetitions: Use weights that allow you to get in between 8-15 repetitions of each exercise. 12 is a good number to start, there is no magic to it. Remember, you will be taxing your cardio as well, so the weights will have to be a little lighter than what you could lift with longer rest periods. Make sure you are pushing yourself though...if you aren't huffing and puffing hard afterwards, you aren't getting the full benefits.

Frequency: Do this program 3 times per week. Combine it with a good warm up and cool down. You can do some walking, running or other cardio on off days if you wish, but that isn't necessary. Follow the program for 1-2 months and then take a week off of weight training. After the back off week, you can start up again with a new circuit by substituting in the alternate exercise suggestions to change it up.

Conclusion: Try this program out for a few months and I'm sure you will be pleased with the results. When combined with a sensible nutrition plan, you can expect to see some good results in terms of weight loss and body composition. Good luck with your training and stay healthy.


The Peripheral Heart Action (PHA) Circuit

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Thursday, November 24, 2011

Bose Aviation Headset X (Portable with Straight Cable)

!±8± Bose Aviation Headset X (Portable with Straight Cable)

Brand : Bose | Rate : | Price :
Post Date : Nov 24, 2011 13:29:23 | N/A

Preferred by pilots, year after year
Bose pioneered active noise reducing headsets nearly 20 years ago, and pilots continue to prefer the Bose Aviation Headset X today. For nine years in a row, it's been rated #1 in Professional Pilot's annual survey, claiming 2009's top honors for comfort, clarity and technical advancement.

Packed with headset innovations
A rare combination of benefits helps distinguish this headset from all other pilot headsets. Most importantly, Acoustic Noise Cancelling® headset technology, pioneered by Bose, dramatically reduces the engine roar you hear in the cockpit.

Here's how it works: Small microphones in each earcup monitor ambient sound. Innovative electronics immediately identify the unwanted noise and create an opposite signal to reduce it. The result? You hear dramatically less engine noise, and more of your communications.

This advanced noise reduction technology combines with exclusive Bose headset design and active EQ to provide you with quality audio in a compact headset weighing only 12 ounces.

Lighter is better
With lighter, more compact earcups, Aviation Headset X requires significantly less clamping force than most noise reduction headsets. Many pilots say this easy-on-the-head design makes a big difference in how they feel after a long flight

The solid magnesium headband is also extremely lightweight and durable. A sheepskin cushion eliminates hot spots, and soft ear cushions provide an effective seal, even over glasses.

Long battery life, smart controls
Proprietary AdaptiSense® headset circuitry gives you at least 40 hours of headset use from just two AA alkaline batteries. This Bose innovation automatically adjusts the headset's need for power according to the levels of cockpit noise and radio communications.

What's in the box
-Portable Aviation Headset X
-Straight-cord, dual-plug cable with control module
-Carry bag

  • Full-spectrum noise reduction, clearer audio, lightweight fit
  • Significantly less clamping force than most pilot headsets with active noise reduction
  • At least 40 hours of performance from just two AA alkaline batteries
  • C-57a and C-58a TSO certified for civil aircraft headsets; meets RTCA/DO-160D and DO-214 environmental standards

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Friday, November 18, 2011

Friday, October 14, 2011

History of Carbon, Condenser And Ribbon Microphones Used For Sound Recording And Telephone

!±8± History of Carbon, Condenser And Ribbon Microphones Used For Sound Recording And Telephone

My last article, which received tremendous interest, was on the History of Audio Recording. I am grateful to all of you that read it and made it a great success. This article is no less important. We certainly can't discuss the History of Audio Recording without also discussing the History of the Microphone. Neither can exist without the other. Together, let's explore the birth and development of this incredible invention.

A microphone is, simply stated, a device that captures "waves" in the air created by the voice or any other noise transmitter and translates those waves into electrical signals. Another way to say it is to convert acoustic power into electrical power. After the sound waves are converted into electrical signals, to hear them again in an acoustic setting, they must be converted back to acoustic power through some kind of loudspeaker. It is amazing to think with all the technological advancements in the last 40 years, we still use this simple process on our stereo, computer or ipod.

Have you attended a concert lately? The relatively weak signal from a voice or musical instrument is created, changed into electrical energy by some sort of microphone, boosted through a series of power amplifiers and, finally, converted back to acoustic energy through loudspeakers. It is easy to sit, enjoy the music, and forget to be thankful for this amazing power that was created in our universe which we enjoy our entire day.

Let's meet some of the visionary people who discovered and developed the universal principles that created a microphone.

Johann Phillip Reis (1834-1874)

This German physicist designed a "sound transmitter" that employed the use of a metallic strip that rested on a membrane with a metal point contact that would complete a circuit as the membrane vibrated. His basic belief that, as the membrane responded to the increase and decrease of acoustic energy and bounced the metal point up and down with more intensity and increased the amplitude of electrical current, was brilliant. Unfortunately, this early effort was not developed enough to produce speech that could be understood.

Elisha Gray (1835-1901)

This American inventor would one day become one of the founders of the Western Electric Company. Gray's design was called a "liquid Transmitter". The "liquid" was an "acidic" solution. This was an incredible innovation. A diaphragm was attached to a movable electrically conductive rod that was immersed in the acidic solution. A second rod was fixed. With a battery attached, a circuit could be completed between the two rods. Acoustic vibrations traveling through the diaphragm caused the distance between the two rods to vary. The result was that this variance produced corresponding changes in electrical resistance in the acidic cell, changing the levels of current. These variations could be translated to a week audible sound.

Alexander Graham Bell (1847-1922)

Famous for his development of the telephone, he employed a similar device as Gray to produce the first transmission of intelligible speech over his primitive telephone. Most of us have heard of the famous words of Bell to his assistant, "Mr. Watson, come here. I want you." The true inventor of the telephone, though, became a legal dispute between Bell and Gray. The courts remained neutral regarding their claims due to the overall poor quality of these early devices.

David Edward Hughes(1831-1900)

While Bell and Gray slugged it out in the courts, Hughes was diligently working to produce the first working microphone. Already a pioneer and patent holder in the telegraph industry by 1855, he designed a new kind of microphone by 1878. It was a completely different design that Bell and Gray. It incorporated the use of carbon granules loosely packed into an enclosed space. When the acoustical pressure varied as they traveled through the diaphragm, the electrical resistance that traveled through the carbon granules changed proportionally. The resulting sound was noisy and full of distortion but it was a significant step forward. Since early reports in the newspaper compared his device with a microscope, " it acts for the ear much in the same way that the microscope serves the eye," Hughes coined the current name "microphone" to his invention.

Thomas Alva Edison (1847-1931)

Edison took Hughes design and made it simple, cheap to manufacture, efficient and durable. He created a cavity filled with granules or carbonized anthracite coal packed between two electrodes, one of which was attached to a thin iron diaphragm. His refinements became the basis for all the telephone transmitters used in most of the telephones for the last century. Further, Bell Telephone and Bell laboratories are still incredible companies that continue to produce new communication technologies.

With the invention of the radio, new broadcasting microphones, like the Ribbon Microphone in 1942, were invented. The Ribbon Microphone originally employed the use of an aluminum ribbon that was placed between two poles of a magnet to generate voltages by electromagnetic induction. As the sound wave caused the ribbon to move, the induced current in the ribbon was proportional to the particle velocity in the sound wave. Ribbon microphones have historically been delicate and expensive. Today's modern materials make present-day ribbon microphones durable enough for loud rock music and stage use.

An incredible step forward in microphone development occurred in 1964. Bell Laboratories researchers James West and Gerhard Sessler created the electroacoustic transducer, an Electret Microphone. The Electret Microphone was a type of Condenser Microphone that offered greater reliability, higher precision, lower cost, and a smaller size. It revolutionized the microphone industry with almost one billion manufactured each year. Further, during the 1970's, dynamic and condenser microphones were developed, allowing for a lower sound level sensitivity and a clearer sound recording.

Currently, microphones are so much a part of our daily life that we take them for granted. After writing this article, I have decided to put them on my list of things to be grateful for. Since I am a pilot, my safety is partially dependent on my being able to communicate on my radio. Guess what I use to talk on my headset? You guessed it, a microphone!

As for the future, many new and incredible innovations are being explored.

1) Laser Velocity Transducers

2) Optical Microphones

3) Direct Digital Output

4) Force Feedback technologies that are used in conjunction with an Optical Microphone

You can click on the "quality_microphones" link below at my web site to see some of the latest microphones.

I hope that you have learned some important information about Microphones. As innovation continues at a rapid rate, the ones we use today may become a future exhibit in the Smithsonian Institution. Until then, they will continue to be an invention that taps into a universal principle that improves our lives.

The truth is, the universe is filled with probably billions of incredible things that we have just not discovered. As in the past, present and will be in the future, those that possess the faith and perseverance to tap into the universal mind are those that will discover and share the secrets of the universe with all of us.

Maybe you are that person!

See you next time!

Jonathan Morgan Jenkins


History of Carbon, Condenser And Ribbon Microphones Used For Sound Recording And Telephone

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Monday, October 10, 2011

NEW FG, Ear Force X11 HP (Videogame Accessories)

!±8±NEW FG, Ear Force X11 HP (Videogame Accessories)

Brand : Turtle Beach
Rate :
Price :
Post Date : Oct 10, 2011 08:10:18
Usually ships in 1-2 business days



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