AudioQuest has announced a new and improved version of its JitterBug noise filter. Like the original, the JitterBug FMJ (Full Metal Jacket) can be plugged into a laptop, desktop, smartphone or streaming device. And yes, as the name suggests, the FMJ is wrapped in metal, unlike its predecessor, which was encased in plastic.
"Whether used in series (in-line) or in parallel, JitterBug significantly reduces contamination from RF generated by a computer, car, or other device," notes AudioQuest. "JitterBug FMJ also thoroughly addresses environmental RF Noise taking advantage of this vulnerable interface.”
Not convinced about all this 'RF Noise' stuff? According to AudioQuest there's a lot of noise and interference coursing through the circuitry of your average computer, particularly its USB connections. Much of it is believed to emanate from your computer’s own power supply.
For the best results, the Californian company recommends that you buddy up the JitterBug FMJ with a second unit, which should be plugged into an unoccupied USB input with its hinged rubber door (also designed to block RF noise) firmly shut. Apparently, using a second unit in parallel "pulls in more RF noise off the USB power bus".
The FMJ is also said to work a treat when used in parallel with the company's DragonFly Black and Red USB DACs (the DragonFly Cobalt already boasts Jitterbug technology, so no need to spend extra here).
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