
AudioQuest - Jitterbug FMJ USB Data & Power Noise Filter (2 Pack)
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AudioQuest - Jitterbug FMJ USB Data & Power Noise Filter (2 Pack)
Overview
The USB port on a computer, phone, car, or streamer carries RF noise along with your music, and that noise can mask detail before the signal ever reaches your DAC. The AudioQuest JitterBug FMJ is a USB 2.0 data and power noise filter that plugs in line with a USB connection to reduce that contamination. This listing includes two JitterBug FMJ filters.
Dual discrete Noise-Dissipation circuits minimize internal noise in both the sending and receiving electronics, and help reduce jitter and packet errors. Its Full Metal Jacket case and hinged, carbon-loaded output cover also guard against environmental RF noise, and it fully complies with USB 2.0 specifications.
Use one JitterBug in series between a computer, smartphone, NAS, streamer, or car audio system and a USB input. AudioQuest also recommends a second JitterBug in an unused USB port, in parallel, with its front door closed, to pull more RF noise off the USB power bus.
Simcoe Audio Video Insight
Two JitterBugs is exactly how AudioQuest suggests getting the most from them: one in series with your DAC and a second in a spare USB port on the same device. With a DragonFly Cobalt, which already uses some of JitterBug's filtering, AudioQuest recommends experimenting with the in-series position.
More Info
Why the AudioQuest JitterBug FMJ (2 Pack) Stands Out
Dual Noise-Dissipation Circuits
Minimize internal noise in both sending and receiving electronics.
Data and Power Filtering
Reduces RF noise on the USB data and power lines, along with jitter and packet errors.
Full Metal Jacket
A metal case plus a hinged, carbon-loaded Noise-Dissipation output cover shields against external interference.
Series or Parallel Use
Works in line with a USB DAC, or in an unused USB port, including service-only or update-only ports.
USB 2.0 Compliant
Fully complies with USB 2.0 specifications for wide compatibility.
Buyer's Guide
Who It's For
- The Computer Audio Listener: Plays music from a laptop or desktop into a USB DAC.
- The DragonFly Owner: Uses a DragonFly Black or Red and wants a cleaner USB connection.
- The Streamer Owner: Has a streamer or NAS with spare or service-only USB ports.
How It Compares
Buying the 2 Pack covers AudioQuest's recommended setup of one JitterBug in series and one in parallel. A single JitterBug FMJ is available on its own if you only need one.
AudioQuest - Jitterbug FMJ USB Data & Power Noise Filter (2 Pack) Specifications
| General Information | |
|---|---|
| Model | AudioQuest JitterBug FMJ |
| Brand | AudioQuest |
| Product Type | USB 2.0 Data and Power Noise Filter |
| Quantity | 2 filters |
| SKU | JITTERBUGFMJ-2PACK |
| Design | |
| Noise Filtering | Dual discrete Noise-Dissipation circuits |
| Case | Full Metal Jacket with hinged, carbon-loaded output cover |
| Compliance | USB 2.0 |
| Use | In series with a USB input, or in parallel in an unused USB port |
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