FAQs

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ALAC files via APP seem to play weird?

DAC
General
Pro iDSD Pro iDSD Signature
We have tried a file sent by one of our customers in Muzo, it does play weird. We’ve sent it to the Wi-Fi module vendor to check. When playing with…
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Alternative apps

DAC
General Operation
Pro iDSD Pro iDSD Signature
For iDSD Pro and the Pro iDSD Signature, use a hardline network for playing High-Res. Wifi is not that reliable in this case. The iDSD Pro and Pro iDSD Signature…
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Apple Lossless

DAC Digital General Softwares
Android Apple - iOS Apple - OSX Digital Features General MQA (Master quality audio) Quality Sound Technical Windows
Aurora hip-dac iDSD Diablo micro iCAN SE micro iDAC micro iDSD NEO iDSD Pro iCAN Pro iDSD Pro iESL xCAN xDSD ZEN Air Blue ZEN Air DAC ZEN Blue ZEN Blue V2 ZEN CAN Signature 6XX ZEN DAC ZEN DAC Signature ZEN DAC Signature V2 ZEN DAC V2
Our products will work with the new Apple Lossless streaming software.
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Are the first bits in a resistor ladder?

DAC
Technical
Pro iDSD Pro iDSD Signature
In the Pro iDSD/Pro iDSD Signature we are running 4 actual DACs in parallel with interleaving, meaning the net result is closer to 8 bit via multi-bit. That means the…
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Bit-perfect+ not present?

DAC
General Operation
Pro iDSD Pro iDSD Signature
Bit-perfect+ is only available for sample rates of 96kHz or lower. If the PC sent a different sample rate (e.g. 192kHz) there is no Bit-perfect+ option.
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Bridge rectifiers power supplies (AC to DC)

Accessories Analogue DAC Digital General Lifestyle Power
Operation Power
Aurora DC iPurifier2 iPower iPowerX micro iCAN SE micro iPhono2 micro iTube2 nano iUSB3.0 Pro iCAN Pro iCAN Signature Pro iDSD Pro iDSD Signature Pro iESL ZEN Blue ZEN Blue V2 ZEN DAC
I have an iFi device that is powered by the iPower but might it be possible to use a different power supply that is not dependent on bridge rectifiers (AC…
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Can it be affected by noise on USB line?

DAC
Operation
Pro iDSD Pro iDSD Signature
The Pro iDSD/Pro iDSD Signature can be affected by packet errors the same way any USB device can. It is not, however, affected by noise on the USB power (it…
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Can my DAC fully unfold MQA?

DAC
MQA (Master quality audio)
hip-dac hip-dac2 micro iDAC2 micro iDSD micro iDSD Black Label nano iDSD nano iDSD Black Label nano iDSD LE nano iOne nano iUSB3.0 NEO iDSD Pro iDSD Pro iDSD Signature xDSD ZEN DAC ZEN DAC Signature V2 ZEN DAC V2
All iFi MQA compatible DACs can do the last MQA unfold, thus fully unfold MQA master tracks. MQA renderer DACs do the last unfold and require Tidal etc. to do…
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Can only Bit-perfect be used on MQA tracks?

DAC
Operation
Pro iDSD Pro iDSD Signature
As MQA controls the time and supersonic frequency-domain behaviour of the system all the way to the analogue output, there are no options for filtering or up-sampling available, as they…
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Clashes USB and Wi-Fi?

DAC
Operation
Pro iDSD Pro iDSD Signature
When playing music through the device’s USB input, the laptop freezes up after 1/2 hour or so of play and requires a hard boot to restart. By process of elimination,…
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Does it have a headphone amplifier?

DAC
Operation
Pro iDSD Pro iDSD Signature
There is no “headphone amplifier” in the Pro iDSD / Pro iDSD Signature. Just a gain stage/line driver that is sufficiently powerful to drive many headphones directly, however, doing so…
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DSD filtering with filter switches on iFi products

DAC
Technical
micro iDAC2 micro iDSD micro iDSD Black Label nano iDSD nano iDSD Black Label nano iOne Pro iDSD Pro iDSD Signature xDSD
By its very functional principle, DSD has RFI of twice the maximum level of the audio signal and four times the nominal DSD “0dB” point between, 1.4MHz and 2.8MHz. DSD…
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Encountering wifi drops outs

DAC
Operation
Pro iDSD Pro iDSD Signature
The whole Wi-Fi subsystem has its own firmware. It outputs audio via I2S to XMOS. Other than turning the thing on/off WiFi module operates “standalone” on its own software. If…
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External USB memory sticks

DAC
Operation
Pro iDSD Pro iDSD Signature
Some SSD/USB memory sticks will work powered from the Pro iDSD/Pro iDSD Signature “A” (host) interface, however, this cannot be guaranteed, as some drives require as much as 1A. If…
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Fix output bypass analogue section?

DAC
Operation
Pro iDSD Pro iDSD Signature
Does the fixed output bypass the analog pot completely, and does the tube get used on the DAC’s output stage, or is it for the amp stage only? Answer: Yes…
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Frequency response for all iFi DSD DACs

DAC General Lifestyle
Aurora hip-dac hip-dac2 micro iDAC2 micro iDSD micro iDSD Black Label nano iDSD nano iDSD Black Label nano iDSD LE nano iOne Pro iDSD Pro iDSD Signature Retro Stereo 50 xDSD ZEN DAC
All iFi DSD playing DACs have a -3dB point for around 75kHz / 90kHz (depending on the precise model) if the sample rate is > 96khz. At sample rates lower…
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Is an OCXO clock used?

DAC
Operation
Pro iDSD Pro iDSD Signature
No, oveninzing a crystal merely reduces long-term thermal drift (over periods of minutes to hours) which is inconsequential to audio playback. We employ a high quality miniaturized 10MHz discrete crystal…
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OFS shows instead of MQA?

DAC
Technical
Pro iDSD Pro iDSD Signature
OFS is a valid state of MQA indication for when a device receives an MQA signal already decoded by a downstream piece of hardware or software. As signals decoded downstream…
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