AudioQuest JitterBug FMJ USB Accessories

AudioQuest JitterBug FMJ Data & Power Noise Filter

The new 'Full-Metal-Jacket' upgrade to the already excellent Jitterbug helps to further reduce RF noise generated from your USB connected device, such as computers, laptops, mobile devices and even cars! The two obvious changes are the outer metal case and the new hinged cover on the female USB A side of the Jitterbug. This new cover is made from a unique material based on carbon which has incredible RF-absorbing properties. This means that if you use the Jitterbug as a standalone connection in your equipment, the improvements for reducing RF Noise are even greater!

Here's what AudioQuest Say:

Many tens of thousands of music lovers are already enjoying better audio enabled by the original AudioQuest JitterBug USB Noise Filter—plugged into cars’ USB jacks, laptop computers, USB “service-only” jacks on Ethernet Streamers, and more. Now, JitterBug FMJ, with its Full Metal Jacket raises the stakes even higher.

Whether used in series (in-line) or in parallel, JitterBug significantly reduces contamination from RF generated by a computer, car, or any other device—JitterBug FMJ also thoroughly addresses environmental RF Noise taking advantage of this vulnerable interface.

Features

• Dual-Discrete Noise-Dissipation Circuits reduce internally generated radio-frequency noise for improved streaming-audio performance
• Reduces jitter and packet errors
• Full-Metal Jacket (FMJ) protects against external noise
• Integrated RF-proof USB output plug further reduces noise
• Complies with all USB 2.0 specifications

The new metal case is the most obvious change, though even the seemingly innocuous hinged “rubber” piece covering JitterBug’s output is crucial to JitterBug’s improved performance. That little black “door” is RF-proof thanks to the material being substantially RF-absorbing Carbon.

Employ one JitterBug in series between any computer, smartphone, NAS, streamer, or car audio system and a USB input. For an additional sonic improvement, use a second JitterBug in another unoccupied USB port—in parallel to the first—except with JitterBug FMJ’s front door closed.

A JitterBug in series with AudioQuest DragonFlys Black or Red always helps those wonderful creatures fly higher and faster. However, it’s best to experiment when putting a JitterBug in front of a DragonFly Cobalt—which itself employs some of JitterBug’s filtering, and so the two filters in series can help or hurt performance depending on specific equipment and context.

Regardless of which DragonFly or any other considerations, a 2nd JitterBug in parallel is always a delightful improvement as it pulls more RF Noise off the USB power bus—which is why and how a JitterBug makes just as big an improvement even when plugged into service-only or update-only USB ports on many devices.

Noise reduction and noise dissipation is AudioQuest! One can’t hear the modern world’s pervasive RF Noise itself, but the compromises it causes robs you of detail, contrast and outright buries so much subtlety. Fight back with JitterBug FMJ.

Specification :

• For use in series (inline) with any computer and USB DAC (digital-to-analog converter)
• For use with computer peripherals, mobile phones and media devices, and network streaming and storage devices
• Reduces the noise and ringing that plague both the data and power lines of USB ports
• Measurably reduces jitter and packet errors
• Improves dynamic contrast, warmth, and resolution

About AudioQuest

AudioQuest has been the largest cable supplier to the high-end specialist market for many years. AudioQuest is sold in several hundred outlets in the US and in over sixty countries. Bill Lowe (Founder) is especially pleased that this success has been possible despite his insistence that the foundation of the company, and the foundation of AudioQuest marketing, must be the performance of the product. In the audio world, many professionals have learned that it is not always convenient to listen to the products they sell … they might learn something they don’t want to know! Bill has always understood the challenge of basing the existence of AudioQuest on the performance of the product. However, to Bill, this is the only reasonable way to do business and the only acceptable way to combine his passion for music (and all things high performance), with his need to make a living.