Review of Audioquest JitterBug - USB Data & Power Noise Filter.

[Arniesb]

I think for those who have basic play back equipment it offers a readily easy improvement sound wise.

Double edged sword... it improves sound highly color it at the same time. I heard ifi cleaners don't color sound as most of rest do.

 

[Arniesb]

Double edged sword... it improves sound and highly color it at the same time. I heard ifi cleaners don't color sound as most of rest do.

 

[DEANO2]

So it coloured your playback and you definitely used one ? I use one on the usb out on my Nas and it quiets down the output i also use one adjacent to my usb output on my Laptop. I'm happy with them.

 

[Arniesb]

So it coloured your playback and you definitely used one ? I use one on the usb out on my Nas and it quiets down the output i also use one adjacent to my usb output on my Laptop. I'm happy with them.

It improves noise and stuff but it clouds the sound. Add veil to sound. Headphonia review perfectly sums it up.

 

[drtechno]

It improves noise and stuff but it clouds the sound. Add veil to sound. Headphonia review perfectly sums it up.

Interesting, So if there is an audio change like that, that means the isolator is over filtering the power and causing the return currents from the analog side not to be equal across different frequency. But its not much of a circuit. Its very minimal for one of these, But a better designed isolator will Isolate, and allow a better power supply to replace the usb power entirely. Alot of people don't understand, that the current capacity of the usb port is the #1 issue here. Jitter is a secondary symptom when it is present in the usb circuit. But here is the standard industrial version. Here we not only isolate ~1500V , but also replace the usb power entirely:


Jitter, on the usb isn't going to be critical, its Jitter in the DAC. If the clocking of the DAc or what is referred to as the clock-master is in the computer, the clocking will never be accurate primarily because the 99% of the clocks in modern computers are not stable. In the pro audio world, we usually clock the converters independently from the computer. Some go to the extreme here in their clocking setups to the point of deriving the sample rate clock from a 10Mhz iridium (atomic) clock.

 

[Arniesb]

Interesting, So if there is an audio change like that, that means the isolator is over filtering the power and causing the return currents from the analog side not to be equal across different frequency. But its not much of a circuit. Its very minimal for one of these, But a better designed isolator will Isolate, and allow a better power supply to replace the usb power entirely. Alot of people don't understand, that the current capacity of the usb port is the #1 issue here. Jitter is a secondary symptom when it is present in the usb circuit. But here is the standard industrial version. Here we not only isolate ~1500V , but also replace the usb power entirely:


Jitter, on the usb isn't going to be critical, its Jitter in the DAC. If the clocking of the DAc or what is referred to as the clock-master is in the computer, the clocking will never be accurate primarily because the 99% of the clocks in modern computers are not stable. In the pro audio world, we usually clock the converters independently from the computer. Some go to the extreme here in their clocking setups to the point of deriving the sample rate clock from a 10Mhz iridium (atomic) clock.

Well said sir. I knew this was the problem but its hard to explain being not expert.
It seems sound seems underpowered from jitterbug. Because it draws some power from usb port and usb cable transfer sound that is underpowered, but less noisy.
Is that correct?

 

[Arniesb]

If im right usb cleaners with power supplies would not have such issues?

 

[drtechno]

Well said sir. I knew this was the problem but its hard to explain being not expert.
It seems sound seems underpowered from jitterbug. Because it draws some power from usb port and usb cable transfer sound that is underpowered, but less noisy.
Is that correct?

It could be considering power demand is the issue. I would have to look at the schematic to really tell you its design short comings, but its a simplified version of what has been out there for a long time. Personally, I think it couldn't compete with the standard. Another device that would have to be looked into is a powered usb hub. like this one here, that has the usb isolator circuit built in: https://www.newegg.com/Product/Prod...m_re=powered_usb_3_hub-_-17-707-437-_-Product

 

[masterstroke]

Does this resolve problems with HDMI output which is (I'm reliably informed) known to have jitter issues? Reason I ask is that I am setting up an AV system on a Mac Mini (as server) which will be outputting sound (and vision) via HDMI to an external DAC?

 

[overhaze]

Has there been any concrete proof that the jitterbug actually does anything?

 

[timb5881]

Stereophile did a review a few years back. No measurable difference, but claimed a slight difference in the sound with it in the loop. I should add, that when I use mine, I use it where their is a USB power source in line, like my iStramer. I use it between the the USB power and the iStreamer.

 

[rkt31]

Stereophile did a review a few years back. No measurable difference, but claimed a slight difference in the sound with it in the loop. I should add, that when I use mine, I use it where their is a USB power source in line, like my iStramer. I use it between the the USB power and the iStreamer.

Jitterbug has only passive noise reduction so it makes music a bit warmer which indicates that it works but it does not improve focus and clarity. also it does not work with low power devices like tabs and mobile. It does not work in series either. Ifi isilencer however has active noise cancellation tech and it improves focus and clarity both while not making music bright. It works with all devices and in series too. I use 3 ifi isilencers in series to remove even the last bit of noise from any usb source. I also have jitterbugs but not using now after trying ifi isilencer.

 

[dakanao]

Does anyone know why the Mojo doesn't work through the AQ Jitterbug on the iPad 4?