JitterBug FMJ USB Filter - USED

What’s old and famous, and yet brand new?

Many tens of thousands of music lovers are already enjoying better audio enabled by the AudioQuest JitterBug USB Noise Filter—whether plugged into a car’s USB jack, or a laptop computer, or a USB “service-only” jack on an Ethernet Streamer, etc… 

Now, JitterBug FMJ, with its Full Metal Jacket raises the stakes. 

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

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 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.

JitterBug uses USB-A connections on both ends. When used with a computer or other device (or car) with only USB-C connections, AudioQuest offers a super-compact high-performance C-male to A-female adaptor, and also the DragonTail flexible C-to-A adaptor (included with DragonFly Cobalt).

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

• Excellent: New in box (10/10).
• Very good: Perfect front face, 1 minor flaw on body is acceptable (8-9/10).
• Good: 1 or 2 minor flaws, used but well maintained (6-7/10).
• Fair: 3 or 4 minor flaws, or 1 major scratch, appears used (5/10).

USED PRODUCT WARRANTIES:
In addition to any warranties from manufacturers, all products including used products purchased from our company will be repaired or replaced at our option should they malfunction under normal use within one year of purchase. Please contact us for an RMA number (Return Merchandise Authorization) prior to sending anything to The Cable Company or the manufacturer.

USED PRODUCTS EXCHANGE POLICY:
Unhappy with the purchase? We offer a 30 day full value exchange for used product purchases. The full final purchase price of the merchandise (not including freight) will be applied to any purchase new or used products of equal or greater value. The customer is responsible for all shipping costs for returns.