Two Are Better Than One: AudioQuest JitterBug FMJ USB Filter (2-Pack) Eliminates Noise in Sending and Receiving Electronics, Works with Computers, Streamers, Mor
A dual-function USB and data filter that plugs into USB inputs on a variety of audio devices, the AudioQuest JitterBug Full Metal Jacket (FMJ) dramatically reduces the noise and ringing afflicting both the data and power lines on USB ports. Consider this award-winning device the most inexpensive albeit effective computer-audio accessory you can buy.
Simply inserting the versatile JitterBug FMJ into a compatible USB input significantly minimizes jitter and packet errors, thereby restoring music's warmth, dimensions, depth, resolution, dynamics, clarity, and resolution. A second JitterBug can be used in parallel with the first, resulting in even greater improvements. Plus, JitterBug FMJ thoroughly addresses environmental RF noise that can intrude upon sonically vulnerable interfaces.
On the outside, the shielded metal case of the JitterBug FMJ provides protection against external noise. That said, the seemingly innocuous hinged “rubber” piece covering JitterBug’s output remains crucial to the improved performance over that of the original model. That little black “door” is RF-proof thanks to the material being substantially RF-absorbing carbon. Inside. JitterBug FMJ's dual discrete noise-dissipation circuits reduce all forms of noise in both sending and receiving electronics.
To experience a positive difference in your listening experience, simply place one JitterBug FMJ in-line between any computer, smartphone, NAS, streamer, or car audio system and a USB input. For additional sonic improvement, use a second JitterBug FMJ in another unoccupied USB port: that is, in parallel to the first. You just need to keep the front door closed on the first JitterBug FMJ. When using Ethernet, digital coax, Wi-Fi, or Bluetooth, plug JitterBug FMJ into an available USB port to reduce noise.
JitterBug FMJ complies will all USB 2.0 specifications and uses USB-A connections on both ends. When used with a computer or other device (or car) with only USB-C connections, a high-performance C-male to A-female adaptor is available separately.
