the EM272 have 1.5kΩ, the 172 2.4kΩ. seems to make a difference. checked against a pair of AOM 5024, which have 2.2kΩ impredance, they are also very quiet, don't catch noise. the 272 works best (connected to a raspberry pi) with the cheapest plastik plug one can find. the best neutriks angled metal shielded ones are the worst. so it goes.
Patrick Perdue:
Is the M272 a different impedance, less sensitivity or less over-all output? I haven't played with any of those capsules. I wanted to mess with the M172's, but life basically had to be put on hold at the end of last year, then the pandemic happened, and I haven't really been able to do anything fun or interesting in over a year.
On 12/14/2020 5:16 PM, udo noll wrote:
nice! maybe my "intervention" had an effect... ;) I've been in contact with them since that last email, the zeros were planned for August 2020, bought 10 of the remaining units from IQaudio and tried to convince them to keep the codec zero and codec+ but unfortunately the latter has gone it seems. It works really great with older (and less power hungry) pi2. They had about 90 left in the shelf in August... anyway, if the zero still has that hidden stereo settings, all fine. however, it's sometimes difficult to get a clean input. Primo EM172 are easy (but discontinued), EM272 (the successor) are a pain... udo
Adam Bowie:
Of note to those on this list in case you hadn't seen it, the Raspberry Pi foundation has announced the availability (or imminent availability) of four IQaudio products: https://www.raspberrypi.org/blog/iqaudio-is-now-raspberry-pi/
"DAC+, DAC Pro, DigiAMP+, and Codec Zero will all be available to buy via our network of Raspberry Pi Approved Resellers."
bad news so far: IQAudio sold their business to raspberrypi.com, and
rpi
are not sure whether they should continue with the codecZero and Code+
boards
(the one with stereo mic in) so, all back to zero? ... they've asked me, as a "valued partner", about my opinion, and I urged
them
to continue with these boards... however, I am not sure if they have correctly assessed the dimension
and size
of my radio aporee enterprise... ;) anyway, I mentioned 1000s of potential users from our live radio
platforms. let's see,
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