tf1216
500+ Head-Fier
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I like this
Thank you for the update!

Thank you for the update!
That's it! Goodbye my beloved FiiO E09K and E07K! You will be missed.... Not by a lot![]()
@iFi audio so i'm interested to know what, if anything, changed as a result of the suggestions of the head-fi, facebook, etc. communities? you've had the micro iDSD in the planning stage for awhile, but i'm curious to know how the open call for suggestions led to any changes in the final product.
the things that were certain: form factor (micro line), DAC chip, RCA outs, battery...and probably some technical stuff that was being ported from the nano/iCan/iDAC
of course, if you'd rather not share any of these, i totally understand. but if you can, i think we'd all be interested. thanks!
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Yeah, I was confused about this, too. How will it choose which digital signal is used? Will SPDIF be default if both are connected?Really like what I have read so far on the spec, but the SPDIF input need to be activated by the USB connection seems like a big drawback to me.
Yeah, I was confused about this, too. How will it choose which digital signal is used? Will SPDIF be default if both are connected?
i was wondering about that myself. I assume the USB in is needed to provide power....
Really like what I have read so far on the spec, but the SPDIF input need to be activated by the USB connection seems like a big drawback to me.
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Hi!!!
Thnx for your answer!!!
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@iFi audio so i'm interested to know what, if anything, changed as a result of the suggestions of the head-fi, facebook, etc. communities? you've had the micro iDSD in the planning stage for awhile, but i'm curious to know how the open call for suggestions led to any changes in the final product.
the things that were certain: form factor (micro line), DAC chip, RCA outs, battery...and probably some technical stuff that was being ported from the nano/iCan/iDAC
of course, if you'd rather not share any of these, i totally understand. but if you can, i think we'd all be interested. thanks!
![]() |
![]() |
Stay updated on iFi audio at their sponsor profile on Head-Fi.
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Hi,
Apologies but misunderstanding re: galvanic isolation as it wont happen in the micro line. Crossed wires between marketing and R&D. Sorry!
Hi,
What has changed due to input from the Head-Fi, Facebook and other "Crowd"?
The original pre-Crowd-Design campaign prototype spec is covered here:
http://www.head-fi.org/t/711217/idsd-micro-crowd-design-latest-specifications-just-added/30#post_10399550
It is easy to compare to the current specification:
http://www.head-fi.org/t/711217/idsd-micro-crowd-design-latest-specifications-just-added/345#post_10470227
There are quite a few differences.
The most significant ones are:
- The most substantial and immediately obvious one will be the mechanical design. This, originally, was based on the iDSD nano with a longer case, to accommodate a bigger battery and more electronics and is now a totally new design, with a distinct front/back arrangement, rather than the more logical, but less convenient "signal through flow" design (USB in on one end, audio outs on the other) of the iDAC micro and iDSD nano.
- This redesign also brings with it a change to a 6.3mm Headphone socket and an upgraded headphone amplifier not just with 3D Holographic and X-Bass but with the power raised to match the original iCAN micro. Instead, that is rated as 400mW/32Ohm continuous power and/or 5V/>100R - which is in effect 1.5W/16 Ohm for reference though this cannot be delivered as continuous power due to battery current limits and overheating. This of course raises demand for extra battery capacity and a much more complex power supply and management solution still being researched (but we are confident we can deliver it).
- Another key change is the inclusion of a SPDIF Input, not just an output and the inclusion of even optical SPDIF as part of a combo Socket that has optical and coaxial SPDIF together. We go even further by including a solid-state version of the Valve Digital input technology (VDi) developed for the DP-777 to optimise the SPDIF input quality, plus the iDSD micro will share the DP-777 GMT clock system to minimise jitter from SPDIF at least as efficiently as the USB connection.
On the other hand we have not changed much else in the design, for example our specified Op-Amp's, Resistors and capacitors will remain unchanged as they already represent an extremely high-level, as do many other parts. (more on these parts quality and selection later).
There are also other design features requested that we may yet be able to include, but we are not yet confident to deliver the results, so we have not yet mentioned them.