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AudioQuest JitterBug FMJ
AudioQuest JitterBug FMJ USB Data & Power Noise Filter
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.
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 everyday 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.
Noise reduction and noise dissipation is AudioQuest! 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.
JitterBug FMJ
Use with DragonFly
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
- 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, AudioQuest offers a super-compact high-performance C-male to A-female adaptor
AudioQuest JitterBug FMJ
Noise reduction and noise dissipation is AudioQuest! 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.
- 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
Jeff
Reviewed in Canada on February 2, 2024
If you use USB to connect from PC to DAC, you should consider trying this product. It helps redecing USB noise without negative impact, and resules in better resolution, transparency and imaging.I also have another simalr product with "Active Filtering". That product also reduces noise, but with sacrificing detail and dynamic. AQ Jitterbug is cheaper and better.
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