AudioQuest Jitterbug FMJ

AudioQuest JitterBug FMJ

Tens of thousands of music lovers already enjoy better sound thanks to AudioQuest's JitterBug USB noise filter - plugged into USB jacks in cars, laptops, or USB service jacks on Ethernet streamers or other devices.

Now the JitterBug FMJ takes it to the next level with its metal housing, the Full Metal Jacket.

The JitterBug reduces contamination from RF noise generated by computers, car or other devices, whether used in series (serial) or parallel. The JitterBug FMJ also combats RF interference from the environment that exploits this vulnerable interface.

The most noticeable change is the new metal housing - but the seemingly innocuous hinged "rubber piece" that covers the JitterBug's output also plays its part in the JitterBug's improved performance. This little black "door" is RF-tight because the material is made of highly RF-absorbing carbon.

Use a JitterBug in series between a computer, smartphone, NAS, streamer or car audio system and a USB input. For additional sound enhancement, use a second JitterBug in another unoccupied USB port in parallel with the first - but here with the front door closed on the JitterBug FMJ.

Used in series with the AudioQuest DragonFlys Black or Red, the JitterBug helps these wonderful creatures fly higher and faster than before. However, if you want to use a JitterBug in front of a DragonFly Cobalt, it is advisable to experiment. The DragonFly Cobalt uses some of the JitterBug filtering itself, and so these two filters working in series can enhance or detract from playback, depending on the system and environment.

Noise rejection and interference reduction - that's what AudioQuest stands for! The ubiquitous RF noise of our modern world may not itself be audible, but the interference it causes robs us of detail and contrast and obscures any number of subtleties. Fight back with the JitterBug FMJ.