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iFi Audio iSilencer+AA USB-A to USB-A Active Noise (Corruption/Jitter) Filter BLACK

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This product is brand-new and factory sealed iFi Audio iSilencer+AA  Low Stock : Order Soon 69.99
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Set USB audio free with blissful, noise-free sound

When used for audio, USB interfaces are inherently ‘noisy’. iFi’s iSilencer+ and iDefender+ remove electrical noise that distorts the audio signal to unleash the connected equipment’s sonic potential

ifi USB Filters 


iFi audio decided to improve on the previous generation of iSilencer. The all-new iSilencer+ is reinforced with the additional low ESR Tantalum capacitors for input and output filtering. It leads to 100% increase in input filtering capacitance and 84% increase in output filtering capacitance. In order to reduce the jitter even further, iSilencer+ offers the new gold-plated USB-C premium connectors.

The transfer mode used for ‘USB Audio Class’ devices is more demanding of USB hardware/software than the bulk/burst mode used for peripherals such as printers and hard drives. Error checking is present but there is no re-transmission in the event of CRC (Cyclic Redundancy Check) errors. Electrical noise on USB signals causes CRC errors and thus data loss, as does poor signal integrity. This can result in audio signal distortion, artefacts (such as clicks and pops) and latency – all things that can affect the performance of computer-based audio systems. The iSilencer+ solves this issue by removing electrical noise (including EMI/RFI) at source, thereby enabling bit-perfect transfer of audio data to the DAC.

iSilencer by iFi Audio

Uniquely, it does this by combining passive filtering with iFi’s ANC II (Active Noise Cancellation II) circuit.  Developed from military radar technology, ANC II works in a similar way to active noise-cancelling headphones – it generates a signal identical to that of the incoming electrical noise but in the opposite phase, actively cancelling it out. This is highly effective at removing low- and mid-frequency noise, while passive insulating filters deal with higher frequency interference. This combination is measurably more effective at eradicating noise corrupting the USB signal than devices relying solely on passive filtering.

Whilst removing noise, the iSIlencer+ reduces the occurrence of jitter – a form of digital distortion that leads to data ‘packet errors’ and results in cold, harsh sound. It also re-balances the signal via iFi’s REbalance technology, ensuring that the digital signal received by the DAC is identical to the original source, no matter which audio format is being played.

iFi Audio iSilencer+

All versions support the ‘SuperSpeed’ USB 3.0 standard, as well as USB 2.0 for backwards compatibility, and incorporate high-quality gold-plated connectors for optimal signal transfer.

As well as plugging an iSilencer+ into the active USB output between computer and DAC, more iSilencer+ ‘sticks’ can be plugged into spare USB ports to further reduce radiated EMI. Each time the number of units (and therefore the number ANC II circuits) is doubled, noise reduction capability also doubles. And the iSilencer+ can be used between external hard drives and music servers, too.

The precise effect of the iSilencer+ on sound quality varies from system to system; typically, one can expect to hear more clarity, greater dynamic extension and sharper leading edges, making the music sound more vivid and open.

The iSilencer+ upgrades the performance of the outgoing iDefender3.0 with the addition of low-ESR Tantalum capacitors for input and output filtering. It, too, is available in three versions to suit the connected equipment – USB-A to USB-A, USB-C to USB-A, and USB-C to USB-C. Again, the USB3.0 and USB2.0 standards are supported and the connectors are gold plated.

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iFi Audio iSilencer+AA USB-A to USB-A Active Noise (Corruption/Jitter) Filter BLACK
iFi Audio iSilencer+AA USB-A to USB-A Active Noise (Corruption/Jitter) Filter BLACK
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